PLU-1-like protein; Sequences in this family bear similarity to the central region of PLU-1. This is a nuclear protein that may have a role in DNA-binding and transcription, and is closely associated with the malignant phenotype of breast cancer. This region is found in various other Jumonji/ARID domain-containing proteins (see pfam02373, pfam01388).

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      741 TWVSRVTEALSANfnHKKDLIELRVMLEDAEDRKYPENDLFRKLRDAVKEAETCASVAQLLLSKKQKHR---QSPDSGRT 817
Cdd:pfam08429    1 TWAEKVEEALEEE--PKPSLKELRALLNEAEKIKFPLPELLQDLRAFVQRANKWVEEAQQLLSRKQQTRrknEAEEDERE 78

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      818 RTKLTVEELKAFVQQLFSLPCVISQARQVKNLLDDVEEFHERAQEAMMDETPDSS--KLQMLIDMGSSLYVELPELPRLK 895
Cdd:pfam08429   79 REKRTVEELRKLLEEADNLPFDCPEIEQLKELLEEIEEFQKRAREALSEEPPSLSieELEELLEEGKSFNVDLPELEELE 158

                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      896 QELQQARWLDEVRlTLSDPQQVTLDVMKKLIDSGVGLAPHHAVEKAMAELQELLTVSERWEEKAKVCLQaRPRHSVASLE 975
Cdd:pfam08429  159 KVLEQLKWLEEVR-ETSRKKSLTLEDVRELIEEGVELGIPPPYEDLMAELQELLTAGERWEEKAKELLS-RERVSLAQLE 236

                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      976 SIVNEAKNIPAFLPNVLSLKEALQKAREWTAKVEAIQSGSNYA---YLEQLESLSAKGRPIPVRLEALPQVESQVAAARA 1052
Cdd:pfam08429  237 ALSKEAQEIPVSLPNLAALDEILKKAREWQRQIEALYQRSDFGkrpTLDELEELLAKGESLPVKPEGLSDLEKEVKRAED 316

                          330       340
                   ....*....|....*....|
gi 435778     1053 WRERTGRTFLKKNSSHTLLQ 1072
Cdd:pfam08429  317 WMRRGKKLFLKKNAPLHLLE 336

JmjC domain, hydroxylase; The JmjC domain belongs to the Cupin superfamily. JmjC-domain proteins may be protein hydroxylases that catalyze a novel histone modification. This is confirmed to be a hydroxylase: the human JmjC protein named Tyw5p unexpectedly acts in the biosynthesis of a hypermodified nucleoside, hydroxy-wybutosine, in tRNA-Phe by catalysing hydroxylation.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      470 WLYVGMCFSSFCWHIEDHWSYSINYLHWGEPKTWYGVPSHAAEQLEEVMRelaPELFESQPDLLHQLVTIMNPNVLMEHG 549
Cdd:pfam02373    1 WLYLGMPFSTTPWHIEDQGLYSINYLHFGAPKVWYIIPPEYAEKFEKVLS---DHFGGEQPDDLLHLNTIISPKQLRENG 77

                           90       100       110
                   ....*....|....*....|....*....|....*..
gi 435778      550 VPVYRTNQCAGEFVVTFPRAYHSGFNQGYNFAEAVNF 586
Cdd:pfam02373   78 IPVYRFVQKPGEFVFTFPGWYHQVFNLGFNIAEAVNF 114

PHD finger 2 found in Lysine-specific demethylase 5A (KDM5A); KDM5A (also termed Histone demethylase JARID1A, Jumonji/ARID domain-containing protein 1A, or Retinoblastoma-binding protein 2 (RBBP-2 or RBP2)) was originally identified as a retinoblastoma protein (Rb)-binding partner and its inactivation may be important for Rb to promote differentiation. It is involved in transcription through interacting with TBP, p107, nuclear receptors, Myc, Sin3/HDAC, Mad1, RBP-J, CLOCK, and BMAL1. KDM5A functions as a trimethylated histone H3 lysine 4 (H3K4me3) demethylase that belongs to the JARID subfamily within the JmjC proteins. It also displays DNA-binding activities that can recognize the specific DNA sequence CCGCCC. KDM5A contains the catalytic JmjC domain, JmjN, the BRIGHT domain, which is an AT-rich interacting domain (ARID), and a Cys5HisCys2 zinc finger, as well as three plant homeodomain (PHD) fingers. This model corresponds to the second PHD finger.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 435778   1163 FCICRKTASGFMLQCELCKDWFHNSCVPLPKSS---SQKKGSSWQAKEVKFLCPLC 1215
Cdd:cd15606    1 YCICRKPFSGFMLQCELCKDWFHSSCVPLPKSSsqkKGGNGSGQGAKELKFLCPLC 56

Small domain found in the jumonji family of transcription factors; To date, this domain always co-occurs with the JmjC domain (although the reverse is not true).

                            10        20        30        40
                    ....*....|....*....|....*....|....*....|..
gi 435778        18 ECPVFEPSWEEFTDPLSFIGRIRPLAEKTGICKIRPPKDWQP 59
Cdd:smart00545    1 EIPVFYPTMEEFKDPLAYISKIRPQAEKYGICKVVPPKSWKP 42

PLU-1-like protein; Sequences in this family bear similarity to the central region of PLU-1. This is a nuclear protein that may have a role in DNA-binding and transcription, and is closely associated with the malignant phenotype of breast cancer. This region is found in various other Jumonji/ARID domain-containing proteins (see pfam02373, pfam01388).

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      741 TWVSRVTEALSANfnHKKDLIELRVMLEDAEDRKYPENDLFRKLRDAVKEAETCASVAQLLLSKKQKHR---QSPDSGRT 817
Cdd:pfam08429    1 TWAEKVEEALEEE--PKPSLKELRALLNEAEKIKFPLPELLQDLRAFVQRANKWVEEAQQLLSRKQQTRrknEAEEDERE 78

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      818 RTKLTVEELKAFVQQLFSLPCVISQARQVKNLLDDVEEFHERAQEAMMDETPDSS--KLQMLIDMGSSLYVELPELPRLK 895
Cdd:pfam08429   79 REKRTVEELRKLLEEADNLPFDCPEIEQLKELLEEIEEFQKRAREALSEEPPSLSieELEELLEEGKSFNVDLPELEELE 158

                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      896 QELQQARWLDEVRlTLSDPQQVTLDVMKKLIDSGVGLAPHHAVEKAMAELQELLTVSERWEEKAKVCLQaRPRHSVASLE 975
Cdd:pfam08429  159 KVLEQLKWLEEVR-ETSRKKSLTLEDVRELIEEGVELGIPPPYEDLMAELQELLTAGERWEEKAKELLS-RERVSLAQLE 236

                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      976 SIVNEAKNIPAFLPNVLSLKEALQKAREWTAKVEAIQSGSNYA---YLEQLESLSAKGRPIPVRLEALPQVESQVAAARA 1052
Cdd:pfam08429  237 ALSKEAQEIPVSLPNLAALDEILKKAREWQRQIEALYQRSDFGkrpTLDELEELLAKGESLPVKPEGLSDLEKEVKRAED 316

                          330       340
                   ....*....|....*....|
gi 435778     1053 WRERTGRTFLKKNSSHTLLQ 1072
Cdd:pfam08429  317 WMRRGKKLFLKKNAPLHLLE 336

JmjC domain, hydroxylase; The JmjC domain belongs to the Cupin superfamily. JmjC-domain proteins may be protein hydroxylases that catalyze a novel histone modification. This is confirmed to be a hydroxylase: the human JmjC protein named Tyw5p unexpectedly acts in the biosynthesis of a hypermodified nucleoside, hydroxy-wybutosine, in tRNA-Phe by catalysing hydroxylation.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      470 WLYVGMCFSSFCWHIEDHWSYSINYLHWGEPKTWYGVPSHAAEQLEEVMRelaPELFESQPDLLHQLVTIMNPNVLMEHG 549
Cdd:pfam02373    1 WLYLGMPFSTTPWHIEDQGLYSINYLHFGAPKVWYIIPPEYAEKFEKVLS---DHFGGEQPDDLLHLNTIISPKQLRENG 77

                           90       100       110
                   ....*....|....*....|....*....|....*..
gi 435778      550 VPVYRTNQCAGEFVVTFPRAYHSGFNQGYNFAEAVNF 586
Cdd:pfam02373   78 IPVYRFVQKPGEFVFTFPGWYHQVFNLGFNIAEAVNF 114

ARID/BRIGHT DNA binding domain; Members of the recently discovered ARID (AT-rich interaction domain) family of DNA-binding proteins are found in fungi and invertebrate and vertebrate metazoans. ARID-encoding genes are involved in a variety of biological processes including embryonic development, cell lineage gene regulation and cell cycle control. Although the specific roles of this domain and of ARID-containing proteins in transcriptional regulation are yet to be elucidated, they include both positive and negative transcriptional regulation and a likely involvement in the modification of chromatin structure. The basic structure of the ARID domain domain appears to be a series of six alpha-helices separated by beta-strands, loops, or turns, but the structured region may extend to an additional helix at either or both ends of the basic six. Based on primary sequence homology, they can be partitioned into three structural classes: Minimal ARID proteins that consist of a core domain formed by six alpha helices; ARID proteins that supplement the core domain with an N-terminal alpha-helix; and Extended-ARID proteins, which contain the core domain and additional alpha-helices at their N- and C-termini.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778        85 RVRLDFLDQLAKFWELQGSTL-KIPVVERKILDLYALSKIVASKGGFEMVTKEKKWSKVGSRLGYLPG-KGTGSLLKSHY 162
Cdd:smart01014    1 RERELFLDRLRKFMEKRGTPLdKIPVIGGKPLDLYRLYRAVQKRGGFDKVTKKKKWKQVARELGIPPSaTSAGTSLRKHY 80

                    ....*...
gi 435778       163 ERILYPYE 170
Cdd:smart01014   81 EKYLLPYE 88

PHD finger 2 found in Lysine-specific demethylase 5A (KDM5A); KDM5A (also termed Histone demethylase JARID1A, Jumonji/ARID domain-containing protein 1A, or Retinoblastoma-binding protein 2 (RBBP-2 or RBP2)) was originally identified as a retinoblastoma protein (Rb)-binding partner and its inactivation may be important for Rb to promote differentiation. It is involved in transcription through interacting with TBP, p107, nuclear receptors, Myc, Sin3/HDAC, Mad1, RBP-J, CLOCK, and BMAL1. KDM5A functions as a trimethylated histone H3 lysine 4 (H3K4me3) demethylase that belongs to the JARID subfamily within the JmjC proteins. It also displays DNA-binding activities that can recognize the specific DNA sequence CCGCCC. KDM5A contains the catalytic JmjC domain, JmjN, the BRIGHT domain, which is an AT-rich interacting domain (ARID), and a Cys5HisCys2 zinc finger, as well as three plant homeodomain (PHD) fingers. This model corresponds to the second PHD finger.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 435778   1163 FCICRKTASGFMLQCELCKDWFHNSCVPLPKSS---SQKKGSSWQAKEVKFLCPLC 1215
Cdd:cd15606    1 YCICRKPFSGFMLQCELCKDWFHSSCVPLPKSSsqkKGGNGSGQGAKELKFLCPLC 56

Small domain found in the jumonji family of transcription factors; To date, this domain always co-occurs with the JmjC domain (although the reverse is not true).

                            10        20        30        40
                    ....*....|....*....|....*....|....*....|..
gi 435778        18 ECPVFEPSWEEFTDPLSFIGRIRPLAEKTGICKIRPPKDWQP 59
Cdd:smart00545    1 EIPVFYPTMEEFKDPLAYISKIRPQAEKYGICKVVPPKSWKP 42

PHD-finger; PHD folds into an interleaved type of Zn-finger chelating 2 Zn ions in a similar manner to that of the RING and FYVE domains. Several PHD fingers have been identified as binding modules of methylated histone H3.

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 435778      295 VCMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLP--DVPKGDWRCPKCV 341
Cdd:pfam00628    1 YCAVCGKSDDGGELVQCDGCDDWFHLACLGPPLDpaEIPSGEWLCPECK 49

jmjN domain;

                           10        20        30
                   ....*....|....*....|....*....|....
gi 435778       20 PVFEPSWEEFTDPLSFIGRIRPLAEKTGICKIRP 53
Cdd:pfam02375    1 PVFYPTEEEFKDPLKYIEKIRPLGEKYGICKIVP 34

PHD zinc finger; The plant homeodomain (PHD) finger is a C4HC3 zinc-finger-like motif found in nuclear proteins thought to be involved in epigenetics and chromatin-mediated transcriptional regulation. The PHD finger binds two zinc ions using the so-called 'cross-brace' motif and is thus structurally related to the RING finger and the FYVE finger. It is not yet known if PHD fingers have a common molecular function. Several reports suggest that it can function as a protein-protein interacton domain and it was recently demonstrated that the PHD finger of p300 can cooperate with the adjacent BROMO domain in nucleosome binding in vitro. Other reports suggesting that the PHD finger is a ubiquitin ligase have been refuted as these domains were RING fingers misidentified as PHD fingers.

                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|...
gi 435778      1164 CICRKT-ASGFMLQCELCKDWFHNSCVPLPksssqkkgSSWQAKEVKFLCPLC 1215
Cdd:smart00249    3 SVCGKPdDGGELLQCDGCDRWYHQTCLGPP--------LLEEEPDGKWYCPKC 47

PHD zinc finger; The plant homeodomain (PHD) finger is a C4HC3 zinc-finger-like motif found in nuclear proteins thought to be involved in epigenetics and chromatin-mediated transcriptional regulation. The PHD finger binds two zinc ions using the so-called 'cross-brace' motif and is thus structurally related to the RING finger and the FYVE finger. It is not yet known if PHD fingers have a common molecular function. Several reports suggest that it can function as a protein-protein interacton domain and it was recently demonstrated that the PHD finger of p300 can cooperate with the adjacent BROMO domain in nucleosome binding in vitro. Other reports suggesting that the PHD finger is a ubiquitin ligase have been refuted as these domains were RING fingers misidentified as PHD fingers.

                            10        20        30
                    ....*....|....*....|....*....|....*.
gi 435778      1656 DWVQCDGgCDEWFHRVCVGVSPEMAE-NEDYICINC 1690
Cdd:smart00249   13 ELLQCDG-CDRWYHQTCLGPPLLEEEpDGKWYCPKC 47

PLU-1-like protein; Sequences in this family bear similarity to the central region of PLU-1. This is a nuclear protein that may have a role in DNA-binding and transcription, and is closely associated with the malignant phenotype of breast cancer. This region is found in various other Jumonji/ARID domain-containing proteins (see pfam02373, pfam01388).

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      741 TWVSRVTEALSANfnHKKDLIELRVMLEDAEDRKYPENDLFRKLRDAVKEAETCASVAQLLLSKKQKHR---QSPDSGRT 817
Cdd:pfam08429    1 TWAEKVEEALEEE--PKPSLKELRALLNEAEKIKFPLPELLQDLRAFVQRANKWVEEAQQLLSRKQQTRrknEAEEDERE 78

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      818 RTKLTVEELKAFVQQLFSLPCVISQARQVKNLLDDVEEFHERAQEAMMDETPDSS--KLQMLIDMGSSLYVELPELPRLK 895
Cdd:pfam08429   79 REKRTVEELRKLLEEADNLPFDCPEIEQLKELLEEIEEFQKRAREALSEEPPSLSieELEELLEEGKSFNVDLPELEELE 158

                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      896 QELQQARWLDEVRlTLSDPQQVTLDVMKKLIDSGVGLAPHHAVEKAMAELQELLTVSERWEEKAKVCLQaRPRHSVASLE 975
Cdd:pfam08429  159 KVLEQLKWLEEVR-ETSRKKSLTLEDVRELIEEGVELGIPPPYEDLMAELQELLTAGERWEEKAKELLS-RERVSLAQLE 236

                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      976 SIVNEAKNIPAFLPNVLSLKEALQKAREWTAKVEAIQSGSNYA---YLEQLESLSAKGRPIPVRLEALPQVESQVAAARA 1052
Cdd:pfam08429  237 ALSKEAQEIPVSLPNLAALDEILKKAREWQRQIEALYQRSDFGkrpTLDELEELLAKGESLPVKPEGLSDLEKEVKRAED 316

                          330       340
                   ....*....|....*....|
gi 435778     1053 WRERTGRTFLKKNSSHTLLQ 1072
Cdd:pfam08429  317 WMRRGKKLFLKKNAPLHLLE 336

JmjC domain, hydroxylase; The JmjC domain belongs to the Cupin superfamily. JmjC-domain proteins may be protein hydroxylases that catalyze a novel histone modification. This is confirmed to be a hydroxylase: the human JmjC protein named Tyw5p unexpectedly acts in the biosynthesis of a hypermodified nucleoside, hydroxy-wybutosine, in tRNA-Phe by catalysing hydroxylation.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778      470 WLYVGMCFSSFCWHIEDHWSYSINYLHWGEPKTWYGVPSHAAEQLEEVMRelaPELFESQPDLLHQLVTIMNPNVLMEHG 549
Cdd:pfam02373    1 WLYLGMPFSTTPWHIEDQGLYSINYLHFGAPKVWYIIPPEYAEKFEKVLS---DHFGGEQPDDLLHLNTIISPKQLRENG 77

                           90       100       110
                   ....*....|....*....|....*....|....*..
gi 435778      550 VPVYRTNQCAGEFVVTFPRAYHSGFNQGYNFAEAVNF 586
Cdd:pfam02373   78 IPVYRFVQKPGEFVFTFPGWYHQVFNLGFNIAEAVNF 114

ARID/BRIGHT DNA binding domain of lysine-specific demethylase KDM5C and KDM5D; This group includes KDM5C and KDM5D, both of which belong to the JARID subfamily within the JmjC proteins. KDM5C, also called histone demethylase JARID1C, Jumonji/ARID domain-containing protein 1C, protein SmcX, or protein Xe169, is a H3K4 trimethyl-histone demethylase that catalyzes demethylation of H3K4me3 and H3K4me2 to H3K4me1. It plays a role in neuronal survival and dendrite development. KDM5C defects are associated with X-linked mental retardation (XLMR). KDM5D, also called histocompatibility Y antigen (H-Y), histone demethylase JARID1D, Jumonji/ARID domain-containing protein 1D, or protein SmcY, is a male-specific antigen that shows a demethylase activity specific for di- and tri-methylated histone H3K4 (H3K4me3 and H3K4me2), and has a male-specific function as a histone H3K4 demethylase by recruiting a meiosis-regulatory protein, MSH5, to condensed DNA. KDM5D directly interacts with a polycomb-like protein Ring6a/MBLR, and plays a role in regulation of transcriptional initiation through H3K4 demethylation. Both KDM5C and KDM5D contain the catalytic JmjC domain, a JmjN domain, an AT-rich DNA-interacting domain (ARID, also known as BRIGHT), a C5HC2 zinc finger, as well as two plant homeodomain (PHD) fingers.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778     84 TRVRLDFLDQLAKFWELQGSTLKIPVVERKILDLYALSKIVASKGGFEMVTKEKKWSKVGSRLGYLPGKGTGSLLKSHYE 163
Cdd:cd16875    1 TRVKLNYLDQIAKFWEIQGSSLKIPNVERRILDLYSLSKIVQEEGGYEAICKDRRWARVAQRLGYPPGKNIGSLLRSHYE 80

                         90
                 ....*....|..
gi 435778    164 RILYPYELFQSG 175
Cdd:cd16875   81 RIIYPYEMYQSG 92

PHD finger 1 found in Lysine-specific demethylase 5A (KDM5A); KDM5A (also termed Histone demethylase JARID1A, Jumonji/ARID domain-containing protein 1A, or Retinoblastoma-binding protein 2 (RBBP-2 or RBP2)) was originally identified as a retinoblastoma protein (Rb)-binding partner and its inactivation may be important for Rb to promote differentiation. It is involved in transcription through interacting with TBP, p107, nuclear receptors, Myc, Sin3/HDAC, Mad1, RBP-J, CLOCK and BMAL1. KDM5A functions as a trimethylated histone H3 lysine 4 (H3K4me3) demethylase that belongs to the JARID subfamily within the JmjC proteins. It also displays DNA-binding activities that can recognize the specific DNA sequence CCGCCC. KDM5A contains the catalytic JmjC domain, JmjN, the BRIGHT domain, which is an AT-rich interacting domain (ARID), and a Cys5HisCys2 zinc finger, as well as three plant homeodomain (PHD) fingers. This model corresponds to the first PHD finger.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*....
gi 435778    295 VCMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKCVAE 343
Cdd:cd15602    1 VCLFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKCVAE 49

PHD finger 1 found in Lysine-specific demethylase KDM5A, KDM5B, KDM5C, KDM5D and similar proteins; The JARID subfamily within the JmjC proteins includes Lysine-specific demethylase KDM5A, KDM5B, KDM5C, KDM5D and a Drosophila homolog, protein little imaginal discs (Lid). KDM5A was originally identified as a retinoblastoma protein (Rb)-binding partner and its inactivation may be important for Rb to promote differentiation. It is involved in transcription through interacting with TBP, p107, nuclear receptors, Myc, Sin3/HDAC, Mad1, RBP-J, CLOCK and BMAL1. KDM5B has a restricted expression pattern in the testis, ovary, and transiently in the mammary gland of the pregnant female and has been shown to be upregulated in breast cancer, prostate cancer, and lung cancer, suggesting a potential role in tumorigenesis. Both KDM5A and KDM5B function as trimethylated histone H3 lysine 4 (H3K4me3) demethylases. KDM5C is a H3K4 trimethyl-histone demethylase that catalyzes demethylation of H3K4me3 and H3K4me2 to H3K4me1. It plays a role in neuronal survival and dendrite development. KDM5C defects are associated with X-linked mental retardation (XLMR). KDM5D is a male-specific antigen that shows a demethylase activity specific for di- and tri-methylated histone H3K4 (H3K4me2 and H3K4me3), and has a male-specific function as a histone H3K4 demethylase by recruiting a meiosis-regulatory protein, MSH5, to condensed DNA. KDM5D directly interacts with a polycomb-like protein Ring6a/MBLR, and plays a role in regulation of transcriptional initiation through H3K4 demethylation. This family also includes Drosophila melanogaster protein little imaginal discs (Lid) that functions as a JmjC-dependent H3K4me3 demethylase, which is required for dMyc-induced cell growth. It positively regulates Hox gene expression in S2 cells. Members in this family contain the catalytic JmjC domain, JmjN, the BRIGHT domain, which is an AT-rich interacting domain (ARID), and a Cys5HisCys2 zinc finger, as well as two or three plant homeodomain (PHD) fingers. This model corresponds to the first PHD finger.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*.
gi 435778    295 VCMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15515    1 ICQVCGRGDDEDKLLLCDGCDDSYHTFCLIPPLPDIPPGDWRCPKC 46

BRIGHT, ARID (A/T-rich interaction domain) domain; DNA-binding domain containing a helix-turn-helix structure

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778        85 RVRLDFLDQLAKFWELQGSTL-KIPVVERKILDLYALSKIVASKGGFEMVTKEKKWSKVGSRLGYlPGKGT--GSLLKSH 161
Cdd:smart00501    1 RERVLFLDRLYKFMEERGSPLkKIPVIGGKPLDLYRLYRLVQERGGYDQVTKDKKWKEIARELGI-PDTSTsaASSLRKH 79

                            90
                    ....*....|....
gi 435778       162 YERILYPYELFQSG 175
Cdd:smart00501   80 YERYLLPYERFLRG 93

PHD finger 1 found in Drosophila melanogaster protein little imaginal discs (Lid) and similar proteins; Drosophila melanogaster Lid, also termed Retinoblastoma-binding protein 2 homolog, is identified genetically as a trithorax group (trxG) protein that is a Drosophila homolog of the human protein JARID1A/kdm5A, a member of the JARID subfamily within the JmjC proteins. Lid functions as a JmjC-dependent trimethyl histone H3K4 (H3K4me3) demethylase, which is required for dMyc-induced cell growth. It positively regulates Hox gene expression in S2 cells. Lid contains the catalytic JmjC domain, JmjN, the BRIGHT domain, which is an AT-rich interacting domain (ARID), and a Cys5HisCys2 zinc finger, as well as three plant homeodomain (PHD) fingers. This model corresponds to the first PHD finger of Lid.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*.
gi 435778    295 VCMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15605    1 VCHTCGRGDGEESMLLCDGCDDSYHTFCLLPPLSEVPKGDWRCPKC 46

PHD finger 2 found in Lysine-specific demethylase 5A (KDM5A); KDM5A (also termed Histone demethylase JARID1A, Jumonji/ARID domain-containing protein 1A, or Retinoblastoma-binding protein 2 (RBBP-2 or RBP2)) was originally identified as a retinoblastoma protein (Rb)-binding partner and its inactivation may be important for Rb to promote differentiation. It is involved in transcription through interacting with TBP, p107, nuclear receptors, Myc, Sin3/HDAC, Mad1, RBP-J, CLOCK, and BMAL1. KDM5A functions as a trimethylated histone H3 lysine 4 (H3K4me3) demethylase that belongs to the JARID subfamily within the JmjC proteins. It also displays DNA-binding activities that can recognize the specific DNA sequence CCGCCC. KDM5A contains the catalytic JmjC domain, JmjN, the BRIGHT domain, which is an AT-rich interacting domain (ARID), and a Cys5HisCys2 zinc finger, as well as three plant homeodomain (PHD) fingers. This model corresponds to the second PHD finger.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 435778   1163 FCICRKTASGFMLQCELCKDWFHNSCVPLPKSS---SQKKGSSWQAKEVKFLCPLC 1215
Cdd:cd15606    1 YCICRKPFSGFMLQCELCKDWFHSSCVPLPKSSsqkKGGNGSGQGAKELKFLCPLC 56

ARID/BRIGHT DNA binding domain family; The AT-rich interaction domain (ARID) family of transcription factors, found in a broad array of organisms from fungi to mammals, is characterized by a highly conserved, helix-turn-helix DNA binding domain that binds to the major groove of DNA. The ARID domain, also called BRIGHT, was first identified in the mouse B-cell-specific transcription factor Bright and in the product of the dead ringer (dri) gene of Drosophila melanogaster. ARID family members are implicated in normal development, differentiation, cell cycle regulation, transcriptional activation and chromatin remodeling. Different family members exhibit different DNA-binding properties. Drosophila Dri, mammalian ARID3A/3B/3C and ARID5A/5B, selectively bind AT-rich sites. However, ARID1A/1B, Drosophila Osa, yeast SWI1, ARID2, ARID4A/4B, JARID1A/1B/1C/1D, and JARID2, bind DNA without sequence specificity.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778     87 RLDFLDQLAKFWELQGSTL-KIPVVERKILDLYALSKIVASKGGFEMVTKEKKWSKVGSRLGY-LPGKGTGSLLKSHYER 164
Cdd:cd16100    2 REEFLEQLRAFLESRGTPLlKPPTIGGKPLDLYKLYRAVVSRGGYEKVTEKKLWKEVARKLGLpTSSTSAAQALKRIYEK 81

                 ....*.
gi 435778    165 ILYPYE 170
Cdd:cd16100   82 YLLPFE 87

PHD finger found in bromodomain adjacent to zinc finger domain protein 2A (BAZ2A) and 2B (BAZ2B); BAZ2A, also termed transcription termination factor I-interacting protein 5 (TTF-I-interacting protein 5, or Tip5), or WALp3, is an epigenetic regulator. It has been implicated in epigenetic rRNA gene silencing, as the large subunit of the SNF2h-containing chromatin-remodeling complex NoRC that induces nucleosome sliding in an ATP- and histone H4 tail-dependent fashion. BAZ2A has also been shown to be broadly overexpressed in prostate cancer, to regulate numerous protein-coding genes and to cooperate with EZH2 (enhancer of zeste homolog 2) to maintain epigenetic silencing at genes repressed in prostate cancer metastasis. Its overexpression is tightly associated with a prostate cancer subtype displaying CpG island methylator phenotype (CIMP) in tumors and with prostate cancer recurrence in patients. BAZ2B, also termed WALp4, is a bromodomain-containing protein whose biological role is still elusive. It shows high sequence similarly with BAZ2A. Both BAZ2A and BAZ2B contain a TAM (TIP5/ARBP/MBD) domain, a DDT domain, four AT-hooks, BAZ 1 and BAZ 2 motifs, a WAKZ (WSTF/Acf1/KIAA0314/ZK783.4) motif, a plant homeodomain (PHD) finger, and a bromodomain. BAZ2B also harbors an extra Apolipophorin-III like domain in its N-terminal region.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*
gi 435778    296 CMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15545    2 CQICRSGDNEDQLLLCDGCDRGYHTYCFKPKMTNVPEGDWFCPEC 46

PHD finger found in Remodeling and spacing factor 1 (Rsf-1); Rsf-1, also termed HBV pX-associated protein 8, or Hepatitis B virus X-associated protein alpha (HBxAPalpha), or p325 subunit of RSF chromatin-remodeling complex, is a novel nuclear protein with histone chaperon function. It is a subunit of an ISWI chromatin remodeling complex, remodeling and spacing factor (RSF), and plays a role in mediating ATPase-dependent chromatin remodeling and conferring tumor aggressiveness in common carcinomas. As an ataxia-telangiectasia mutated (ATM)-dependent chromatin remodeler, Rsf-1 facilitates DNA damage checkpoints and homologous recombination repair. It regulates the mitotic spindle checkpoint and chromosome instability through the association with serine/threonine kinase BubR1 (BubR1) and Hepatitis B virus (HBV) X protein (HBx) in the chromatin fraction during mitosis. It also interacts with cyclin E1 and promotes tumor development. Rsf-1 contains a plant homeodomain (PHD) finger.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*
gi 435778    296 CMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15543    2 CRKCGLSDHPEWILLCDRCDAGYHTACLRPPLMIIPDGNWFCPPC 46

PHD finger 1 found in Schizosaccharomyces pombe Lid2 complex component Lid2p and similar proteins; Lid2p is a trimethyl H3K4 (H3K4me3) demethylase responsible for H3K4 hypomethylation in heterochromatin. It interacts with the histone lysine-9 methyltransferase, Clr4, through the Dos1/Clr8-Rik1 complex, and mediates H3K9 methylation and small RNA production. It also acts cooperatively with the histone modification enzymes Set1 and Lsd1 and plays an essential role in cross-talk between H3K4 and H3K9 methylation in euchromatin. Lid2p contains a JmjC domain, three PHD fingers and a JmjN domain. This model corresponds to the first PHD finger.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*.
gi 435778    295 VCMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15519    1 GCEVCGLDDNEGEVLLCDGCDAEYHTSCLDPPLGEIPPGTWFCPSC 46

PHD finger found in bromodomain adjacent to zinc finger domain protein 1A (BAZ1A); BAZ1A, also termed ATP-dependent chromatin-remodeling protein, or ATP-utilizing chromatin assembly and remodeling factor 1 (ACF1), or CHRAC subunit ACF1, or Williams syndrome transcription factor-related chromatin-remodeling factor 180 (WCRF180), or WALp1, is a subunit of the conserved imitation switch (ISWI)-family ATP-dependent chromatin assembly and remodeling factor (ACF)/chromatin accessibility complex (CHRAC) chromatin remodeling complex, which is required for DNA replication through heterochromatin. It alters the remodeling properties of the ATPase motor protein sucrose nonfermenting-2 homolog (SNF2H). Moreover, BAZ1A and its complexes play important roles in DNA double-strand break (DSB) repair. It is essential for averting improper gene expression during spermatogenesis. It also regulates transcriptional repression of vitamin D3 receptor-regulated genes. BAZ1A contains a WAC motif, a DDT domain, BAZ 1 and BAZ 2 motifs, a WAKZ (WSTF/Acf1/KIAA0314/ZK783.4) motif, a plant homeodomain (PHD) finger, and a bromodomain.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*
gi 435778    296 CMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15627    2 CRICRRKGDAEKMLLCDGCDRGHHMYCLRPPLKKVPEGDWFCPDC 46

PHD finger 5 found in Histone-lysine N-methyltransferase 2C (KMT2C) and PHD finger 4 found in KMT2D; KMT2C, also termed myeloid/lymphoid or mixed-lineage leukemia protein 3 (MLL3), or homologous to ALR protein, is a histone H3 lysine 4 (H3K4) lysine methyltransferase that functions as a circadian factor contributing to genome-scale circadian transcription. It is a component of a large complex that acts as a coactivator of multiple transcription factors, including the bile acid (BA)-activated nuclear receptor, farnesoid X receptor (FXR), a critical player in BA homeostasis. The MLL3 complex is essential for p53 transactivation of small heterodimer partner (SHP). KMT2C is also a part of activating signal cointegrator-2 (ASC-2)-containing complex (ASCOM) that contains the transcriptional coactivator nuclear receptor coactivator 6 (NCOA6), KMT2C and its paralog MLL4. The ASCOM complex is critical for nuclear receptor (NR) activation of bile acid transporter genes and is down regulated in cholestasis. KMT2D, also termed ALL1-related protein (ALR), is encoded by the gene that was named MLL4, a fourth human homolog of Drosophila trithorax, located on chromosome 12. It enzymatically generates trimethylated histone H3 Lysine 4 (H3K4me3). It plays an essential role in differentiating the human pluripotent embryonal carcinoma cell line NTERA-2 clone D1 (NT2/D1) stem cells by activating differentiation-specific genes, such as HOXA1-3 and NESTIN. KMT2D is also a part of ASCOM. Both KMT2C and KMT2D contain the catalytic domain SET, several plant homeodomain (PHD) fingers, extended PHD (ePHD) fingers, Cys2HisCys5HisCys2His, a RING finger, an HMG (high-mobility group)-binding motif, and two FY-rich regions. This model corresponds to the fifth PHD finger of KMT2C and the fourth PHD finger of KMT2D.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*..
gi 435778    295 VCMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKCV 341
Cdd:cd15513    1 VCEGCGKASDESRLLLCDDCDISYHTYCLDPPLQTVPKGGWKCKWCV 47

PHD-finger; PHD folds into an interleaved type of Zn-finger chelating 2 Zn ions in a similar manner to that of the RING and FYVE domains. Several PHD fingers have been identified as binding modules of methylated histone H3.

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 435778      295 VCMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLP--DVPKGDWRCPKCV 341
Cdd:pfam00628    1 YCAVCGKSDDGGELVQCDGCDDWFHLACLGPPLDpaEIPSGEWLCPECK 49

ARID/BRIGHT DNA binding domain of Arabidopsis thaliana high mobility group B proteins HMGB9, HMGB10, HMGB11, HMGB15 and similar proteins; This subfamily includes a group of conserved plant DNA-binding proteins, including HMGB9 (or ARID-HMG1), HMGB10 (or ARID-HMG2), HMGB11, and HMGB15. They have been termed ARID-HMG proteins, due to containing two DNA-binding domains, an N-terminal AT-rich DNA-interacting domain (ARID, also known as BRIGHT), and a C-terminal high mobility group (HMG)-box domain. They are widely expressed in Arabidopsis and localize primarily to the nucleus. HMGB9/ARID-HMG1 binds specifically to A/T-rich DNA. HMGB15 is a transcription factor predominantly expressed in mature pollen grains and pollen tubes. It may work in the form of a homodimer, or interact with HMGB9, HMGB10 and HMGB11 to form heteromultimers in plant cells. HMGB15 is required for pollen tube growth in Arabidopsis and is involved in transcriptional regulation through the interaction with AGL66 and AGL104.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778     90 FLDQLAKFWELQGSTLKIPVVERKILDLYALSKIVASKGGFEMVTKEKKWSKVGSRLGYLPGKGTGS-LLKSHYERILYP 168
Cdd:cd16872    5 FWETLRKFHESLGTKFRIPIVGGKELDLHRLYKEVTSRGGLEKVIKDRKWKEVAAVFNFPPTITNASfVLRKYYLSLLHH 84

                 ..
gi 435778    169 YE 170
Cdd:cd16872   85 YE 86

jmjN domain;

                           10        20        30
                   ....*....|....*....|....*....|....
gi 435778       20 PVFEPSWEEFTDPLSFIGRIRPLAEKTGICKIRP 53
Cdd:pfam02375    1 PVFYPTEEEFKDPLKYIEKIRPLGEKYGICKIVP 34

PHD zinc finger; The plant homeodomain (PHD) finger is a C4HC3 zinc-finger-like motif found in nuclear proteins thought to be involved in epigenetics and chromatin-mediated transcriptional regulation. The PHD finger binds two zinc ions using the so-called 'cross-brace' motif and is thus structurally related to the RING finger and the FYVE finger. It is not yet known if PHD fingers have a common molecular function. Several reports suggest that it can function as a protein-protein interacton domain and it was recently demonstrated that the PHD finger of p300 can cooperate with the adjacent BROMO domain in nucleosome binding in vitro. Other reports suggesting that the PHD finger is a ubiquitin ligase have been refuted as these domains were RING fingers misidentified as PHD fingers.

                            10        20        30        40
                    ....*....|....*....|....*....|....*....|....*..
gi 435778       295 VCMFCGRGNNEDKLLLCDGCDDSYHTFCL-IPPLPDVPKGDWRCPKC 340
Cdd:smart00249    1 YCSVCGKPDDGGELLQCDGCDRWYHQTCLgPPLLEEEPDGKWYCPKC 47

PHD finger found in bromodomain adjacent to zinc finger domain protein 1B (BAZ1B); BAZ1B, also termed Tyrosine-protein kinase BAZ1B, or Williams syndrome transcription factor (WSTF), or Williams-Beuren syndrome chromosomal region 10 protein, Williams-Beuren syndrome chromosomal region 9 protein, or WALp2, is a multifunctional protein implicated in several nuclear processes, including replication, transcription, and the DNA damage response. BAZ1B/WSTF, together with the imitation switch (ISWI) ATPase, forms a WSTF-ISWI chromatin remodeling complex (WICH), which transiently associates with the human inactive X chromosome (Xi) during late S-phase prior to BRCA1 and gamma-H2AX. Moreover, BAZ1B/WSTF, SNF2h, and nuclear myosin 1 (NM1) forms the chromatin remodeling complex B-WICH that is involved in regulating rDNA transcription. BAZ1B contains a WAC motif, a DDT domain, BAZ 1 and BAZ 2 motifs, a WAKZ (WSTF/Acf1/KIAA0314/ZK783.4) motif, a plant homeodomain (PHD) finger, and a bromodomain.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*
gi 435778    296 CMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15628    2 CKVCRKKGEDDKLILCDECNQAFHLFCLRPALYEVPDGEWMCPAC 46

PHD finger found in ubiquitin-like PHD and RING finger domain-containing protein UHRF1 and UHRF2; UHRF1 is a unique chromatin effector protein that integrates the recognition of both histone PTMs and DNA methylation. It is essential for cell proliferation and plays a critical role in the development and progression of many human carcinomas, such as laryngeal squamous cell carcinoma (LSCC), gastric cancer (GC), esophageal squamous cell carcinoma (ESCC), colorectal cancer, prostate cancer, and breast cancer. UHRF1 acts as a transcriptional repressor through its binding to histone H3 when it is unmodified at Arg2. Its overexpression in human lung fibroblasts results in downregulation of expression of the tumour suppressor pRB. It also plays a role in transcriptional repression of the cell cycle regulator p21. Moreover, UHRF1-dependent repression of transcription factors can facilitate the G1-S transition. It interacts with Tat-interacting protein of 60 kDa (TIP60) and induces degradation-independent ubiquitination of TIP60. It is also an N-methylpurine DNA glycosylase (MPG)-interacting protein that binds MPG in a p53 status-independent manner in the DNA base excision repair (BER) pathway. In addition, UHRF1 functions as an epigenetic regulator that is important for multiple aspects of epigenetic regulation, including maintenance of DNA methylation patterns and recognition of various histone modifications. UHRF2 was originally identified as a ubiquitin ligase acting as a small ubiquitin-like modifier (SUMO) E3 ligase that enhances zinc finger protein 131 (ZNF131) SUMOylation but does not enhance ZNF131 ubiquitination. It also ubiquitinates PCNP, a PEST-containing nuclear protein. Moreover, UHRF2 functions as a nuclear protein involved in cell-cycle regulation and has been implicated in tumorigenesis. It interacts with cyclins, CDKs, p53, pRB, PCNA, HDAC1, DNMTs, G9a, methylated histone H3 lysine 9, and methylated DNA. It interacts with the cyclin E-CDK2 complex, ubiquitinates cyclins D1 and E1, induces G1 arrest, and is involved in the G1/S transition regulation. Furthermore, UHRF2 is a direct transcriptional target of the transcription factor E2F-1 in the induction of apoptosis. It recruits HDAC1 and binds to methyl-CpG. UHRF2 also participates in the maturation of Hepatitis B virus (HBV) by interacting with the HBV core protein and promoting its degradation. Both UHRF1 and UHRF2 contain an N-terminal ubiquitin-like domain (UBL), a tandem Tudor domain (TTD), a plant homeodomain (PHD) finger, a SET- and RING-associated (SRA) domain, and a C-terminal RING finger.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*.
gi 435778    296 CMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGD-WRCPKC 340
Cdd:cd15525    2 CHVCGGKQDPEKQLLCDECDMAYHLYCLDPPLTSLPDDDeWYCPDC 47

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing proteins ARID5A, ARID5B, and similar proteins; This subfamily contains ARID5A and its paralog ARID5B. ARID5A, also called modulator recognition factor 1 (MRF-1), is an estrogen receptor alpha (ER alpha)-interacting protein that is expressed abundantly in cardiovascular tissues and suppresses ER alpha-induced transactivation. It also plays an important role in the promotion of inflammatory processes and autoimmune diseases. ARID5B, also called MRF1-like protein or modulator recognition factor 2 (MRF-2), is a DNA-binding protein that directly interacts with plant homeodomain (PHD) finger 2 (PHF2) to form a protein kinase A (PKA)-dependent PHF2-ARID5B histone H3K9Me2 demethylase complex. It also functions as a transcriptional co-regulator for the transcription factor sex determining region Y (SRY)-box protein 9 (Sox9) and promotes chondrogenesis through histone modification. Moreover, ARID5B is highly expressed in the cardiovascular system and may play essential roles in the phenotypic change of smooth muscle cells (SMCs) through its regulation of SMC differentiation. Both ARID5A and ARID5B contain an AT-rich DNA-interacting domain (ARID, also known as BRIGHT).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778     89 DFLDQLAKFWELQGSTL-KIPVVERKILDLYALSKIVASKGGFEMVTKEKKWSKVGSRLGYLPGKGTGSLL-KSHYERIL 166
Cdd:cd16869    4 AFLKLLYKFMKDRGTPIeRIPHLGFKQIDLYTFFKLVQKLGGYEQVTAKRLWKHVYDELGGNPSSTSAATCtRRHYEKLL 83

                 ....
gi 435778    167 YPYE 170
Cdd:cd16869   84 LPYE 87

PHD finger 2 found in monocytic leukemia zinc-finger protein (MOZ) and its factor (MORF); MOZ, also termed histone acetyltransferase KAT6A, YBF2/SAS3, SAS2 and TIP60 protein 3 (MYST-3), or runt-related transcription factor-binding protein 2, or zinc finger protein 220, is a MYST-type histone acetyltransferase (HAT) that functions as a coactivator for acute myeloid leukemia 1 protein (AML1)- and p53-dependent transcription. It possesses intrinsic HAT activity to acetylate both itself and lysine (K) residues on histone H2B, histone H3 (K14) and histone H4 (K5, K8, K12 and K16) in vitro and H3K9 in vivo. MOZ-related factor (MORF), also termed MOZ2, or histone acetyltransferase KAT6B, or MOZ, YBF2/SAS3, SAS2 and TIP60 protein 4 (MYST4), is a ubiquitously expressed transcriptional regulator with intrinsic HAT activity. It can interact with the Runt-domain transcription factor Runx2 and form a tetrameric complex with BRPFs, ING5, and EAF6. Both MOZ and MORF are catalytic subunits of HAT complexes that are required for normal developmental programs, such as hematopoiesis, neurogenesis, and skeletogenesis, and are also implicated in human leukemias. MOZ is also the catalytic subunit of a tetrameric inhibitor of growth 5 (ING5) complex, which specifically acetylates nucleosomal histone H3K14. Moreover, MOZ and MORF are involved in regulating transcriptional activation mediated by Runx2 (or Cbfa1), a Runt-domain transcription factor known to play important roles in T cell lymphomagenesis and bone development, and its homologs. MOZ contains a linker histone 1 and histone 5 domains and two plant homeodomain (PHD) fingers. In contrast, MORF contains an N-terminal region containing two PHD fingers, a putative HAT domain, an acidic region, and a C-terminal Ser/Met-rich domain. The family corresponds to the first PHD finger.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*
gi 435778    296 CMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15527    2 CSVCQDSGNADNLLFCDACDKGFHMECHDPPLTRMPKGKWVCQIC 46

PHD finger 1 found in autoimmune regulator (AIRE); AIRE, also termed autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED) protein, functions as a regulator of gene transcription in the thymus. It is essential for prevention of autoimmunity. AIRE plays a critical role in the induction of central tolerance. It promotes self-tolerance through tissue-specific antigen (TSA) expression. It also acts as an active regulator of chondrocyte differentiation. AIRE contains a homogeneously-staining region (HSR) or caspase-recruitment domain (CARD), a nuclear localization signal (NLS), a SAND (for Sp100, AIRE, nuclear phosphoprotein 41/75 or NucP41/75, and deformed epidermal auto regulatory factor 1 or Deaf1) domain, two plant homeodomain (PHD) fingers, and four LXXLL (where L stands for leucine) motifs. This model corresponds to the first PHD finger that recognizes the unmethylated tail of histone H3 and targets AIRE-dependent genes.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*
gi 435778    296 CMFCGRGNNedkLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15539    2 CAVCGDGGE---LLCCDGCPRAFHLACLVPPLTLIPSGTWRCSSC 43

PHD finger found in ubiquitin-like PHD and RING finger domain-containing protein 1 (UHRF1); UHRF1 (also termed inverted CCAAT box-binding protein of 90 kDa, nuclear protein 95, nuclear zinc finger protein Np95 (Np95), RING finger protein 106, transcription factor ICBP90, or E3 ubiquitin-protein ligase UHRF1) is a unique chromatin effector protein that integrates the recognition of both histone PTMs and DNA methylation. It is essential for cell proliferation and plays a critical role in the development and progression of many human carcinomas, such as laryngeal squamous cell carcinoma (LSCC), gastric cancer (GC), esophageal squamous cell carcinoma (ESCC), colorectal cancer, prostate cancer, and breast cancer. UHRF1 acts as a transcriptional repressor through its binding to histone H3 when it is unmodified at Arg2. Its overexpression in human lung fibroblasts results in downregulation of expression of the tumour suppressor pRB. It also plays a role in transcriptional repression of the cell cycle regulator p21. Moreover, UHRF1-dependent repression of transcription factors can facilitate the G1-S transition. It interacts with Tat-interacting protein of 60 kDa (TIP60) and induces degradation-independent ubiquitination of TIP60. It is also an N-methylpurine DNA glycosylase (MPG)-interacting protein that binds MPG in a p53 status-independent manner in the DNA base excision repair (BER) pathway. In addition, UHRF1 functions as an epigenetic regulator that is important for multiple aspects of epigenetic regulation, including maintenance of DNA methylation patterns and recognition of various histone modifications. UHRF1 contains an N-terminal ubiquitin-like domain (UBL), a tandem Tudor domain (TTD), a plant homeodomain (PHD) finger, a SET and RING finger associated (SRA) domain, and a C-terminal RING-finger domain. It specifically binds to hemimethylated DNA, double-stranded CpG dinucleotides, and recruits the maintenance methyltransferase DNMT1 to its hemimethylated DNA substrate through its SRA domain. UHRF1-dependent H3K23 ubiquitylation has an essential role in maintaining DNA methylation and replication. The tandem Tudor domain directs UHRF1 binding to the heterochromatin mark histone H3K9me3 and the PHD finger targets UHRF1 to unmodified histone H3 in euchromatic regions. The RING-finger domain exhibit both autocatalytic E3 ubiquitin (Ub) ligase activity and activity against histone H3 and DNMT1.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*.
gi 435778    296 CMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVP-KGDWRCPKC 340
Cdd:cd15616    2 CHVCGGKQDPDKQLMCDECDMAFHIYCLNPPLSSIPdDEDWYCPEC 47

PHD finger 2 found in d4 gene family proteins; The family includes proteins coded by three members of the d4 gene family, DPF1 (neuro-d4), DPF2 (ubi-d4/Requiem), and DPF3 (cer-d4), which function as transcription factors and are involved in transcriptional regulation of genes by changing the condensed/decondensed state of chromatin in the nucleus. DPF2 is ubiquitously expressed and it acts as a transcription factor that may participate in developmentally programmed cell death. DPF1 and DPF3 are expressed predominantly in neural tissues, and they may be involved in the transcription regulation of neuro-specific gene clusters. The d4 family proteins show distinct domain organization with domain 2/3 in the N-terminal region, a Cys2His2 (C2H2) zinc finger or Kruppel-type zinc finger in the central part and two adjacent plant homeodomain (PHD) fingers (d4-domain) in the C-terminal part of the molecule. This model corresponds to the second PHD finger.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*
gi 435778    296 CMFCGRGNNEDKLLLCDGCDDSYHTFCLIPPLPDVPKGDWRCPKC 340
Cdd:cd15530    2 CSLCGTSENDDQLLFCDDCDRGYHMYCLSPPMSEPPEGSWSCHLC 46

ARID/BRIGHT DNA binding domain of AT-rich interactive domain-containing proteins ARID3A, ARID3B, ARID3C, dead ringer (Dri) from Drosophila melanogaster, and similar proteins; The ARID3 subfamily includes AT-rich interactive domain (ARID, also known as BRIGHT)-containing proteins ARID3A, ARID3B and ARID3C, which are the most direct mammalian counterparts of the Drosophila "dead ringer" protein Dri. They consist of an acidic N-terminal region of unknown function, the central ARID matrix association (or attachment) region (MAR)-DNA binding domain, a SUMO-I conjugation (SUMO) motif, and a multifunctional homomerization/nuclear export REKLES domain in the C-terminal third of the molecule. The ARID domain in this subfamily has been described as the "extended" or e-ARID due to additional conserved sequences at both the N and C termini of the core ARID region. The REKLES domain is found only in the ARID3 subfamily. It has co-evolved with and regulates functional properties of the ARID DNA-binding domain.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 435778     87 RLDFLDQLAKFWELQGSTL-KIPVVERKILDLYALSKIVASKGGFEMVTKEKKWSKVGSRLGyLPGKGTGS--LLKSHYE 163
Cdd:cd16867   13 RKEFLDDLFSFMQKRGTPVnRIPIMAKQVLDLYELYRLVVEKGGLVEVINKKIWREITKGLN-LPSSITSAafTLRTQYM 91