Tudor domain found in PHD finger protein1 (PHF1) and similar proteins; PHF1, also called Polycomb-like protein 1 (PCL1), together with JARID2 and AEBP2, associates with the Polycomb repressive complex 2 (PRC2), which is the major H3K27 methyltransferase that regulates pluripotency, differentiation, and tumorigenesis, through catalysis of histone H3 lysine 27 trimethylation (H3K27me3) on chromatin. PHF1 is essential in epigenetic regulation and genome maintenance. It acts as a dual reader of lysine trimethylation at lysine 36 of histone H3 and lysine 27 of histone variant H3t. Moreover, PHF1 is required for efficient H3-K27 trimethylation (H3K27me3) and Hox gene silencing. It can mediate deposition of the repressive H3K27me3 mark and acts as a cofactor in early DNA-damage response. PHF1 consists of an N-terminal Tudor domain followed by two PHD domains, and a C-terminal MTF2 domain. Its Tudor domain selectively binds to histone H3K36me3.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1220209781  30 RLWEGQDVLARWTDGLLYLGTIKKVDSAREVCLVQFEDDSQFLVLWKDISPAA 82
Cdd:cd20449     1 RLWEGQDVLARWTDGLLYLGTIKKVDSAREVCLVQFEDDSQFLVLWKDISPAA 53

Polycomb-like MTF2 factor 2; Mammalian Polycomb-like gene MTF2/PCL2 forms a complex with Polycomb repressive complex-2 (PRC2) and collaborates with PRC1 to achieve repression of Hox gene expression. The human MTF2 gene is expressed in three splicing variants, each of them contains the short C-terminal domain defined here. The domain is subject to structure determination by the Joint Center of Structural Genomics.

                          10        20        30
                  ....*....|....*....|....*....|
gi 1220209781 504 LSRGDPVRVLARRVRPDGSVQYLVEWGGGG 533
Cdd:pfam14061  19 IACGERYAVLAKRVTPNGKVQYLVEWEGTT 48

Tudor domain found in PHD finger protein1 (PHF1) and similar proteins; PHF1, also called Polycomb-like protein 1 (PCL1), together with JARID2 and AEBP2, associates with the Polycomb repressive complex 2 (PRC2), which is the major H3K27 methyltransferase that regulates pluripotency, differentiation, and tumorigenesis, through catalysis of histone H3 lysine 27 trimethylation (H3K27me3) on chromatin. PHF1 is essential in epigenetic regulation and genome maintenance. It acts as a dual reader of lysine trimethylation at lysine 36 of histone H3 and lysine 27 of histone variant H3t. Moreover, PHF1 is required for efficient H3-K27 trimethylation (H3K27me3) and Hox gene silencing. It can mediate deposition of the repressive H3K27me3 mark and acts as a cofactor in early DNA-damage response. PHF1 consists of an N-terminal Tudor domain followed by two PHD domains, and a C-terminal MTF2 domain. Its Tudor domain selectively binds to histone H3K36me3.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1220209781  30 RLWEGQDVLARWTDGLLYLGTIKKVDSAREVCLVQFEDDSQFLVLWKDISPAA 82
Cdd:cd20449     1 RLWEGQDVLARWTDGLLYLGTIKKVDSAREVCLVQFEDDSQFLVLWKDISPAA 53

Jumonji domain-containing protein 2A Tudor domain; This is the tudor domain found in histone demethylase Jumonji domain-containing protein 2A (JMJD2A). Structure and function analysis indicate that this domain can recognize equally well two unrelated histone peptides, H3K4me3 and H4K20me3, by means of two very different binding mechanisms. JMJD2 also known as KDM4, is a conserved iron (II)-dependent jumonji-domain demethylase subfamily that is essential during development. Vertebrate KDM4A-C proteins contain a conserved double tudor domain (DTD).

                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 1220209781  34 GQDVLARWTDGLLYLGTIKKVDSArEVCLVQFEDDS 69
Cdd:pfam18104   1 GQDVIARWTDGRYYLGKFIGIHTQ-TFYEVEFEDGS 35

Tudor domain; Domain of unknown function present in several RNA-binding proteins. 10 copies in the Drosophila Tudor protein. Initial proposal that the survival motor neuron gene product contain a Tudor domain are corroborated by more recent database search techniques such as PSI-BLAST (unpublished).

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1220209781   29 PRLWEGQDVLARWTDGLLYLGTIKKVDSAREvCLVQFEDD-SQFLVLWKDISP 80
Cdd:smart00333   1 PTFKVGDKVAARWEDGEWYRARIVKVDGEQL-YEVFFIDYgNEEVVPPSDLRQ 52

Polycomb-like MTF2 factor 2; Mammalian Polycomb-like gene MTF2/PCL2 forms a complex with Polycomb repressive complex-2 (PRC2) and collaborates with PRC1 to achieve repression of Hox gene expression. The human MTF2 gene is expressed in three splicing variants, each of them contains the short C-terminal domain defined here. The domain is subject to structure determination by the Joint Center of Structural Genomics.

                          10        20        30
                  ....*....|....*....|....*....|
gi 1220209781 504 LSRGDPVRVLARRVRPDGSVQYLVEWGGGG 533
Cdd:pfam14061  19 IACGERYAVLAKRVTPNGKVQYLVEWEGTT 48

PHD zinc finger-containing protein [General function prediction only];

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1220209781  59 EVCLVQFEDDSQFLVLW---KDISPAAlPGEEL--LCCVCRSETVVPGNRLVSCEKCRHAYHQDCH-VPRAPapgEGEgt 132
Cdd:COG5141   161 EIIVTRLEKEWFFFEHGlpdKHVEPIE-PSDEFddICTKCTSTHNENSNAIVFCDGCEICVHQSCYgIQFLP---EGF-- 234

                          90
                  ....*....|
gi 1220209781 133 sWVCRQCVFA 142
Cdd:COG5141   235 -WLCRKCIYG 243

Tudor domain found in PHD finger protein1 (PHF1) and similar proteins; PHF1, also called Polycomb-like protein 1 (PCL1), together with JARID2 and AEBP2, associates with the Polycomb repressive complex 2 (PRC2), which is the major H3K27 methyltransferase that regulates pluripotency, differentiation, and tumorigenesis, through catalysis of histone H3 lysine 27 trimethylation (H3K27me3) on chromatin. PHF1 is essential in epigenetic regulation and genome maintenance. It acts as a dual reader of lysine trimethylation at lysine 36 of histone H3 and lysine 27 of histone variant H3t. Moreover, PHF1 is required for efficient H3-K27 trimethylation (H3K27me3) and Hox gene silencing. It can mediate deposition of the repressive H3K27me3 mark and acts as a cofactor in early DNA-damage response. PHF1 consists of an N-terminal Tudor domain followed by two PHD domains, and a C-terminal MTF2 domain. Its Tudor domain selectively binds to histone H3K36me3.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1220209781  30 RLWEGQDVLARWTDGLLYLGTIKKVDSAREVCLVQFEDDSQFLVLWKDISPAA 82
Cdd:cd20449     1 RLWEGQDVLARWTDGLLYLGTIKKVDSAREVCLVQFEDDSQFLVLWKDISPAA 53

PHD finger 1 found in PHD finger protein1 (PHF1); PHF1, also termed polycomb-like protein 1 (PCL1), together with JARID2 and AEBP2, associates with the polycomb repressive complex 2 (PRC2), which is the major H3K27 methyltransferase that regulates pluripotency, differentiation, and tumorigenesis through catalysis of histone H3 lysine 27 trimethylation (H3K27me3) on chromatin. PHF1 is essential in epigenetic regulation and genome maintenance. It acts as a dual reader of Lysine trimethylation at Lysine 36 of Histone H3 and Lysine 27 of Histone variant H3t. PHF1 consists of an N-terminal Tudor domain followed by two PHD fingers, and a C-terminal MTF2 domain. Its Tudor domain selectively binds to histone H3K36me3. Moreover, PHF1 is required for efficient H3K27me3 and Hox gene silencing. It can mediate deposition of the repressive H3K27me3 mark and acts as a cofactor in early DNA-damage response. This model corresponds to the first PHD finger.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1220209781  89 LCCVCRSETVVPGNRLVSCEKCRHAYHQDCHVPRAPAPGEGEGTSWVCRQC 139
Cdd:cd15500     1 ICCVCDSETVSPKNPLVNCEKCHHAYHQECHVPRVPLESAGDGDSWMCRQC 51

Tudor domain found in metal-response element-binding transcription factor 2 (MTF2) and similar proteins; MTF2, also called metal regulatory transcription factor 2, metal-response element DNA-binding protein M96, or Polycomb-like protein 2 (PCL2), complexes with the Polycomb repressive complex-2 (PRC2) in embryonic stem cells and regulates the transcriptional networks during embryonic stem cell self-renewal and differentiation. It recruits the PRC2 complex to the inactive X chromosome and target loci in embryonic stem cells. Moreover, MTF2 is required for PRC2-mediated Hox cluster repression. It activates the Cdkn2a gene and promotes cellular senescence, thus suppressing the catalytic activity of PRC2 locally. MTF2, like other PCL family proteins, consists of an N-terminal Tudor domain followed by two PHD domains, and a C-terminal MTF2 domain. PCL proteins specifically recognize tri-methylated H3K36 (H3K36me3) through their N-terminal Tudor domains.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 1220209781  33 EGQDVLARWTDGLLYLGTIKKVDSAREVCLVQFEDDSQFLVLWKDISPAA 82
Cdd:cd20450     4 EGQDVLARWSDGLFYLGTIKKINKLKQSCFIIFEDSSKSWVLWKDIQTGA 53

Jumonji domain-containing protein 2A Tudor domain; This is the tudor domain found in histone demethylase Jumonji domain-containing protein 2A (JMJD2A). Structure and function analysis indicate that this domain can recognize equally well two unrelated histone peptides, H3K4me3 and H4K20me3, by means of two very different binding mechanisms. JMJD2 also known as KDM4, is a conserved iron (II)-dependent jumonji-domain demethylase subfamily that is essential during development. Vertebrate KDM4A-C proteins contain a conserved double tudor domain (DTD).

                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 1220209781  34 GQDVLARWTDGLLYLGTIKKVDSArEVCLVQFEDDS 69
Cdd:pfam18104   1 GQDVIARWTDGRYYLGKFIGIHTQ-TFYEVEFEDGS 35

PHD finger found in integrator complex subunit 12 (Int12) and similar proteins; Int12, also termed IntS12, or PHD finger protein 22, is a component of integrator, a multi-protein mediator of small nuclear RNA processing. The integrator complex directly interacts with the C-terminal domain of RNA polymerase II (RNAPII) largest subunit and mediates the 3' end processing of small nuclear RNAs (snRNAs) U1 and U2. Different from other components of integrator, Int12 contains a PHD finger, which is not required for snRNA 3' end cleavage. Instead, Int12 harbors a small microdomain at its N-terminus which is necessary and sufficient for Int12 function; this microdomain facilitates Int12 binding to Int1 and promotes snRNA 3' end formation.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1220209781  90 CCVCRSETVVPGNRLVSCEKCRHAYHQDCHVPRAP-APGEGEGTSWVCRQC 139
Cdd:cd15501     2 CVVCKQMDVTSGNQLVECQECHNLYHQECHKPPVTdKDVNDPRLVWYCSRC 52

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        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1220209781  90 CCVCRSETvvPGNRLVSCEKCRHAYHQDCHVPRAPAPGEGEGtSWVCRQCVFA 142
Cdd:pfam00628   2 CAVCGKSD--DGGELVQCDGCDDWFHLACLGPPLDPAEIPSG-EWLCPECKPK 51

Tudor domain; Domain of unknown function present in several RNA-binding proteins. 10 copies in the Drosophila Tudor protein. Initial proposal that the survival motor neuron gene product contain a Tudor domain are corroborated by more recent database search techniques such as PSI-BLAST (unpublished).

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1220209781   29 PRLWEGQDVLARWTDGLLYLGTIKKVDSAREvCLVQFEDD-SQFLVLWKDISP 80
Cdd:smart00333   1 PTFKVGDKVAARWEDGEWYRARIVKVDGEQL-YEVFFIDYgNEEVVPPSDLRQ 52

Polycomb-like MTF2 factor 2; Mammalian Polycomb-like gene MTF2/PCL2 forms a complex with Polycomb repressive complex-2 (PRC2) and collaborates with PRC1 to achieve repression of Hox gene expression. The human MTF2 gene is expressed in three splicing variants, each of them contains the short C-terminal domain defined here. The domain is subject to structure determination by the Joint Center of Structural Genomics.

                          10        20        30
                  ....*....|....*....|....*....|
gi 1220209781 504 LSRGDPVRVLARRVRPDGSVQYLVEWGGGG 533
Cdd:pfam14061  19 IACGERYAVLAKRVTPNGKVQYLVEWEGTT 48

PHD finger found in BRPF proteins, Jade proteins, protein AF-10, AF-17, and similar proteins; The family includes BRPF proteins, Jade proteins, protein AF-10 and AF-17. BRPF proteins are scaffold proteins that form monocytic leukemic zinc-finger protein (MOZ)/MOZ-related factor (MORF) H3 histone acetyltransferase (HAT) complexes with other regulatory subunits, such as inhibitor of growth 5 (ING5) and Esa1-associated factor 6 ortholog (EAF6). BRPF proteins have multiple domains, including a canonical Cys4HisCys3 plant homeodomain (PHD) zinc finger followed by a non-canonical extended PHD (ePHD) finger, Cys2HisCys5HisCys2His, a bromodomain and a proline-tryptophan-tryptophan-proline (PWWP) domain. PHD and ePHD fingers both bind to lysine 4 of histone H3 (K4H3), bromodomains interact with acetylated lysines on N-terminal tails of histones and other proteins, and PWWP domains show histone-binding and chromatin association properties. Jade proteins are required for ING4 and ING5 to associate with histone acetyltransferase (HAT) HBO1 and EAF6, to form a HBO1 complex that has a histone H4-specific acetyltransferase activity, a reduced activity toward histone H3, and is responsible for the bulk of histone H4 acetylation in vivo. AF-10, also termed ALL1 (acute lymphoblastic leukemia)-fused gene from chromosome 10 protein, is a transcription factor that has been implicated in the development of leukemia following chromosomal rearrangements between the AF10 gene and one of at least two other genes, MLL and CALM. AF-17, also termed ALL1-fused gene from chromosome 17 protein, is a putative transcription factor that may play a role in multiple signaling pathways. All Jade proteins, AF-10, and AF-17 contain a canonical PHD finger followed by a non-canonical ePHD finger. This model corresponds to the canonical PHD finger.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1220209781  89 LCCVCRSETVVPGNRLVSCEKCRHAYHQDCH-VPRAPapgEGegtSWVCRQC 139
Cdd:cd15492     1 VCDVCLDGESEDDNEIVFCDGCNVAVHQSCYgIPLIP---EG---DWFCRKC 46

PHD finger superfamily; The PHD finger superfamily includes a canonical plant homeodomain (PHD) finger typically characterized as Cys4HisCys3, and a non-canonical extended PHD finger, characterized as Cys2HisCys5HisCys2His. Variations include the RAG2 PHD finger characterized by Cys3His2Cys2His and the PHD finger 5 found in nuclear receptor-binding SET domain-containing proteins characterized by Cys4HisCys2His. The PHD finger is also termed LAP (leukemia-associated protein) motif or TTC (trithorax consensus) domain. Single or multiple copies of PHD fingers have been found in a variety of eukaryotic proteins involved in the control of gene transcription and chromatin dynamics. PHD fingers can recognize the unmodified and modified histone H3 tail, and some have been found to interact with non-histone proteins. They also function as epigenome readers controlling gene expression through molecular recruitment of multi-protein complexes of chromatin regulators and transcription factors. The PHD finger domain SF is structurally similar to the RING and FYVE_like superfamilies.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 1220209781  90 CCVCRsETVVPGNRLVSCEKCRHAYHQDCHVPRAPAPGEGEgtSWVCRQC 139
Cdd:cd15489     2 CIVCG-KGGDLGGELLQCDGCGKWFHADCLGPPLSSFVPNG--KWICPVC 48

PHD finger found in protein Jade-3 and similar proteins; Jade-3, also termed PHD finger protein 16 (PHF16), is a plant homeodomain (PHD) zinc finger protein that is closely related to Jade-1, which functions as an essential regulator of multiple cell signaling pathways. Like Jade-1, Jade-3 is required for ING4 and ING5 to associate with histone acetyl transferase (HAT) HBO1 and Eaf6 to form a HBO1 complex that has a histone H4-specific acetyltransferase activity, a reduced activity toward histone H3, and is responsible for the bulk of histone H4 acetylation in vivo. Jade-3 contains a canonical Cys4HisCys3 PHD domain followed by a non-canonical extended PHD (ePHD) domain, Cys2HisCys5HisCys2His, both of which are zinc-binding motifs. This model corresponds to the canonical Cys4HisCys3 PHD finger.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 1220209781  89 LCCVCRSETVVPGNRLVSCEKCRHAYHQDCH-VPRAPapgEGegtSWVCRQCVFAI 143
Cdd:cd15681     1 ICDVCRSPDSEEGNDMVFCDKCNICVHQACYgILKVP---EG---SWLCRTCVLGI 50

PHD finger found in bromodomain and PHD finger-containing (BRPF) proteins; The family of BRPF proteins includes BRPF1, BRD1/BRPF2, and BRPF3. They are scaffold proteins that form monocytic leukemic zinc-finger protein (MOZ)/MOZ-related factor (MORF) H3 histone acetyltransferase (HAT) complexes with other regulatory subunits, such as inhibitor of growth 5 (ING5) and Esa1-associated factor 6 ortholog (EAF6). BRPF proteins have multiple domains, including a canonical Cys4HisCys3 plant homeodomain (PHD) zinc finger followed by a non-canonical extended PHD (ePHD) finger, Cys2HisCys5HisCys2His, a bromodomain and a proline-tryptophan-tryptophan-proline (PWWP) domain. PHD and ePHD fingers both bind to lysine 4 of histone H3 (K4H3), bromodomains interact with acetylated lysines on N-terminal tails of histones and other proteins, and PWWP domains show histone-binding and chromatin association properties. This model corresponds to the canonical Cys4HisCys3 PHD finger.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1220209781  89 LCCVCRSETVVPGNRLVSCEKCRHAYHQDCH-VPRAPapgEGEgtsWVCRQCV 140
Cdd:cd15572     3 VCCICLDGECQNSNVILFCDMCNLAVHQECYgVPYIP---EGQ---WLCRRCL 49

PHD finger 2 found in histone-lysine N-methyltransferase 2A (KMT2A) and 2B (KMT2B); This family includes histone-lysine N-methyltransferase trithorax (Trx) like proteins, KMT2A (MLL1) and KMT2B (MLL2), which comprise the mammalian Trx branch of the COMPASS family, and are both essential for mammalian embryonic development. KMT2A regulates chromatin-mediated transcription through the catalysis of methylation of histone 3 lysine 4 (H3K4), and is frequently rearranged in acute leukemia. KMT2A functions as the catalytic subunit in the MLL1 complex. KMT2B is a second human homolog of Drosophila trithorax, located on chromosome 19 and functions as the catalytic subunit in the MLL2 complex. It plays a critical role in memory formation through mediating hippocampal H3K4 di- and trimethylation. It is also required for RNA polymerase II association and protection from DNA methylation at the MagohB CpG island promoter. Both KMT2A and KMT2B contain a CxxC (x for any residue) zinc finger domain, three plant homeodomain (PHD) fingers, an extended PHD (ePHD) finger, Cys2HisCys5HisCys2His, two FY (phenylalanine tyrosine)-rich domains, and a SET (Suppressor of variegation, Enhancer of zeste, Trithorax) domain. This model corresponds to the second PHD finger.

                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 1220209781 104 LVSCEKCRHAYHQDCHVPRAPAPGEGEGTSWVCRQC 139
Cdd:cd15507    15 LLECEKCQRGYHVDCLGPSYPTKPTRKKKTWICSKC 50

Domain of unknown function (DUF4537); The function of this domain family is unknown. It is found in eukaryotes, and is typically between 119 and 141 amino acids in length. In humans, it is found in the chromosomal position C11orf16.

                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1220209781  34 GQDVLARW-TDGLLYLGTIKKVDSAReVCLVQFEDDSQFLVLWKDIspaaLPGEELLCCVCR 94
Cdd:pfam15057   1 GQRVLARWdEDGFYYRGTVKKYLNGG-QYLVEFDAGDRQVVLTRDI----IALEDAMEHPLR 57

PHD finger found in Arabidopsis thaliana pathogenesis-related homeodomain protein (PRHA) and similar proteins; PRHA is a homeodomain protein encoded by a single-copy Arabidopsis thaliana homeobox gene, prha. It shows the capacity to bind to TAATTG core sequence elements but requires additional adjacent bases for high-affinity binding. PRHA contains a plant homeodomain (PHD) finger, a homeodomain, peptide repeats and a putative leucine zipper dimerization domain.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1220209781  89 LCCVCRSETVVPGNRLVSCE-KCRHAYHQDCHVPR-APAPGEGEGTSWVCRQC 139
Cdd:cd15504     1 FCAKCQSGEASPDNDILLCDgGCNRAYHQKCLEPPlLTEDIPPEDEGWLCPLC 53

PHD finger found in protein Jade-1 and similar proteins; Jade-1, also termed PHD finger protein 17 (PHF17), is a novel binding partner of von Hippel-Lindau (VHL) tumor suppressor Pvhl, a key regulator of the cellular oxygen sensing pathway. It is highly expressed in renal proximal tubules. Jade-1 functions as an essential regulator of multiple cell signaling pathways. It may be involved in the serine/threonine kinase AKT/AKT1 pathway during renal cancer pathogenesis and normally prevents renal epithelial cell proliferation and transformation. It also acts as a pro-apoptotic and growth suppressive ubiquitin ligase to inhibit canonical Wnt downstream effector beta-catenin for proteasomal degradation, and as a transcription factor associated with histone acetyltransferase activity and with increased abundance of cyclin-dependent kinase inhibitor p21. Moreover, Jade-1 is required for ING4 and ING5 to associate with histone acetyltransferase (HAT) HBO1 and Eaf6 to form a HBO1 complex, and plays a role in epithelial cell regeneration. It has also been identified as a novel component of the nephrocystin protein (NPHP) complex and interacts with the ciliary protein nephrocystin-4 (NPHP4). Jade-1 contains a canonical Cys4HisCys3 plant homeodomain (PHD) finger followed by a non-canonical extended PHD (ePHD) finger, Cys2HisCys5HisCys2His, both of which are zinc-binding motifs. This model corresponds to the canonical Cys4HisCys3 PHD finger.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1220209781  89 LCCVCRSETVVPGNRLVSCEKCRHAYHQDCH-VPRAPapgEGegtSWVCRQC 139
Cdd:cd15679     1 VCDVCQSPDGEDGNEMVFCDKCNICVHQACYgILKVP---EG---SWLCRTC 46

PHD finger found in the Sp100/Sp140 family of nuclear body components; The Sp100/Sp140 family includes nuclear body proteins SP100, SP140, and similar proteins. Sp110, also termed interferon-induced protein 41/75, or speckled 110 kDa, or transcriptional coactivator Sp110, is a leukocyte-specific component of the nuclear body. It may function as a nuclear hormone receptor transcriptional coactivator that may play a role in inducing differentiation of myeloid cells. It is also involved in resisting intracellular pathogens and functions as an important drug target for preventing intracellular pathogen diseases, such as tuberculosis, hepatic veno-occlusive disease, and intracellular cancers. Sp110 gene polymorphisms may be associated with susceptibility to tuberculosis in Chinese population. Sp110 contains a Sp100-like domain, a SAND domain, a plant homeodomain (PHD) finger, and a bromodomain (BRD). SP140, also termed lymphoid-restricted homolog of Sp100 (LYSp100), or nuclear autoantigen Sp-140, or speckled 140 kDa, is an interferon inducible nuclear leukocyte-specific protein involved in primary biliary cirrhosis and a risk factor in chronic lymphocytic leukemia. It is also implicated in innate immune response to human immunodeficiency virus type 1 (HIV-1) by binding to the virus's viral infectivity factor (Vif) protein. Sp140 contains a nuclear localization signal, a dimerization domain (HSR or CARD domain), a SAND domain, a PHD finger, and a BRD.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|
gi 1220209781  90 CCVCRSEtvvpgNRLVSCEKCRHAYHQDCHVPrapaPGEGEGTSWVCRQC 139
Cdd:cd15626     2 CEVCGQE-----GKLFCCCTCSRVFHEDCHIP----PVEAQRSPWSCTFC 42

PHD finger 2 found in histone-lysine N-methyltransferase 2A (KMT2A); KMT2A (also termed ALL-1, CXXC-type zinc finger protein 7, myeloid/lymphoid or mixed-lineage leukemia protein 1 (MLL1), trithorax-like protein (Htrx), or zinc finger protein HRX) is a histone methyltransferase that belongs to the MLL subfamily of H3K4-specific histone lysine methyltransferases (KMT2). It regulates chromatin-mediated transcription through the catalysis of methylation of histone 3 lysine 4 (H3K4), and is frequently rearranged in acute leukemia. KMT2A functions as the catalytic subunit in the MLL1 complex, which also contains WDR5, RbBP5, ASH2L and DPY30 as integral core subunits required for the efficient methylation activity of the complex. The MLL1 complex is highly active and specific for H3K4 methylation. KMT2A contains a CxxC (x for any residue) zinc finger domain, three plant homeodomain (PHD) fingers, a Bromodomain domain, an extended PHD (ePHD) finger, Cys2HisCys5HisCys2His, two FY (phenylalanine tyrosine)-rich domains, and a SET (Suppressor of variegation, Enhancer of zeste, Trithorax) domain. This model corresponds to the second PHD finger.

                          10        20        30
                  ....*....|....*....|....*....|....*..
gi 1220209781 103 RLVSCEKCRHAYHQDCHVPRAPAPGEGEGTSWVCRQC 139
Cdd:cd15590    14 QLLECNKCRNSYHPECLGPNYPTKPTKKKRVWICTKC 50

second Tudor domain found in Jumonji domain-containing protein 2A (JMJD2A) and similar proteins; JMJD2A, also called lysine-specific demethylase 4A (KDM4A), or JmjC domain-containing histone demethylation protein 3A (JHDM3A), catalyzes the demethylation of di- and trimethylated H3K9 and H3K36. It is involved in carcinogenesis and functions as a transcription regulator that may either stimulate or repress gene transcription. It associates with nuclear receptor corepressor complex or histone deacetylases. Moreover, JMJD2A forms complexes with both the androgen and estrogen receptor (ER), and plays an essential role in growth of both ER-positive and -negative breast tumors. It is also involved in prostate, colon, and lung cancer progression. JMJD2A contains jmjN and jmjC domains in the N-terminal region, followed by a canonical plant homeodomain (PHD) domain, a noncanonical extended PHD domain, and tandem Tudor domains. The model corresponds to the second Tudor domain. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|....*.
gi 1220209781  33 EGQDVLARWTDGLLYlGTIKKVDSAREVCLVQFEDDSQFLVLWKDI 78
Cdd:cd20466     4 EGEVVQVRWTDGQVY-GAKFVASHPIQMYQVEFEDGSQLVVKRDDV 48

Tudor domain found in PHD finger protein 20 (PHF20), PHF20-like protein 1 (PHF20L1), and similar proteins; PHF20, also called Glioma-expressed antigen 2, hepatocellular carcinoma-associated antigen 58, novel zinc finger protein, or transcription factor TZP (referring to Tudor and zinc finger domain containing protein), is a regulator of NF-kappaB activation by disrupting recruitment of PP2A to p65. It also functions as a transcription factor that binds to Akt and plays a role in Akt cell survival/growth signaling. Moreover, it transcriptionally regulates p53. The phosphorylation of PHF20 on Ser291 mediated by protein kinase B (PKB) is essential in tumorigenesis via the regulation of p53-mediated signaling. PHF20L1 is an active malignant brain tumor (MBT) domain-containing protein that binds to monomethylated lysine 142 on DNA (cytosine-5) Methyltransferase 1 (DNMT1) (DNMT1K142me1) and colocalizes at the perinucleolar space in a SET7-dependent manner. Both PHF20 and PHF20L1 contain an N-terminal malignant brain tumor (MBT) domain, a Tudor domain, a plant homeodomain (PHD) finger and putative DNA-binding domains AT hook and C2H2-type zinc finger. The Tudor domain binds to proteins with dimethylated arginine or lysine residues, and may also bind methylated histone tails to facilitate protein-protein interactions.

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gi 1220209781  34 GQDVLARWTDGLLYLGTIKKV---DSarevCLVQFEDDSQFLVLWKDISP 80
Cdd:cd20386     4 GEEVLARWSDCKFYPAKILKVldnGT----YEVLFYDGFKKTVKASNLKK 49

PHD finger found in Arabidopsis thaliana histone-lysine N-methyltransferase arabidopsis trithorax-like protein ATX1, ATX2, and similar proteins; The family includes A. thaliana ATX1 and ATX2, both of which are sister paralogs originating from a segmental chromosomal duplication. They are plant counterparts of the Drosophila melanogaster trithorax (TRX) and mammalian mixed-lineage leukemia (MLL1) proteins. ATX1, also termed protein SET domain group 27, or trithorax-homolog protein 1 (TRX-homolog protein 1), is a methyltransferase that trimethylates histone H3 at lysine 4 (H3K4me3). It also acts as a histone modifier and as a positive effector of gene expression. ATX1regulates transcription from diverse classes of genes implicated in biotic and abiotic stress responses. It is involved in dehydration stress signaling in both abscisic acid (ABA)-dependent and ABA-independent pathways. ATX2, also termed protein SET domain group 30, or trithorax-homolog protein 2 (TRX-homolog protein 2), is involved in dimethylating histone H3 at lysine 4 (H3K4me2). Both ATX1 and ATX2 are multi-domain containing proteins that consist of an N-terminal PWWP domain, FYRN- and FYRC (DAST, domain associated with SET in trithorax) domains, a canonical Cys4HisCys3 plant homeodomain (PHD) finger, a non-canonical extended PHD (ePHD) finger, Cys2HisCys5HisCys2His, and a C-terminal SET domain; this model corresponds to the Cys4HisCys3 canonical PHD finger.

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gi 1220209781  90 CCVCRSETVVPGNRLVSCEKCRHAYHQDCHVPRAPAPGEgegtSWVCRQC 139
Cdd:cd15494     2 CSVCGEDEEYEDNLLLQCDKCRMMVHMRCYGVLEPPPGA----LWLCNLC 47

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.

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gi 1220209781  90 CCVCRsETVVPGNRLVsCEKCRHAYHQDCHVPRAPAPGEGEgtsWVCRQC 139
Cdd:cd15527     2 CSVCQ-DSGNADNLLF-CDACDKGFHMECHDPPLTRMPKGK---WVCQIC 46

PHD finger found in transcription intermediary factor 1-alpha (TIF1-alpha); TIF1-alpha, also termed tripartite motif-containing protein 24 (TRIM24), or E3 ubiquitin-protein ligase TRIM24, or RING finger protein 82, belongs to the TRIM/RBCC protein family. It interacts specifically and in a ligand-dependent manner with the ligand binding domain (LBD) of several nuclear receptors (NRs), including retinoid X (RXR), retinoic acid (RAR), vitamin D3 (VDR), estrogen (ER), and progesterone (PR) receptors. It also associates with heterochromatin-associated factors HP1alpha, MOD1 (HP1beta) and MOD2 (HP1gamma), as well as vertebrate Kruppel-type (C2H2) zinc finger proteins that contain transcriptional silencing domain KRAB. TIF1-alpha is a ligand-dependent co-repressor of retinoic acid receptor (RAR) that interacts with multiple nuclear receptors in vitro via an LXXLL motif, and further acts as a gatekeeper of liver carcinogenesis. It also functions as an E3-ubiquitin ligase targeting p53 and is broadly associated with chromatin silencing. Moreover, it is a chromatin regulator that recognizes specific, combinatorial histone modifications through its C-terminal plant homeodomain (PHD)-Bromodomain (Bromo) region. In addition, it interacts with chromatin and estrogen receptor to activate estrogen-dependent genes associated with cellular proliferation and tumor development. TIF1-alpha contains an N-terminal RBCC (RING finger, B-box zinc-fingers, coiled-coil), a plant homeodomain (PHD) finger, followed by a bromodomain in the C-terminal region.

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gi 1220209781  90 CCVCRSetvvpGNRLVSCEKCRHAYHQDCHVPRAPAPGEGEgtsWVCRQC 139
Cdd:cd15622     2 CAVCQN-----GGELLCCEKCPKVFHLSCHVPTLMNFPSGE---WICTFC 43

PHD finger 2 found in metal-response element-binding transcription factor 2 (MTF2); MTF2, also termed metal regulatory transcription factor 2, or metal-response element DNA-binding protein M96, or Polycomb-like protein 2 (PCL2), complexes with the Polycomb repressive complex-2 (PRC2) in embryonic stem cells and regulates the transcriptional networks during embryonic stem cell self-renewal and differentiation. It recruits the PRC2 complex to the inactive X chromosome and target loci in embryonic stem cells. Moreover, MTF2 is required for PRC2-mediated Hox cluster repression. It activates the Cdkn2a gene and promotes cellular senescence, thus suppressing the catalytic activity of PRC2 locally. MTF2 consists of an N-terminal Tudor domain followed by two plant homeodomain (PHD) fingers, and a C-terminal MTF2 domain. This model corresponds to the second PHD finger.

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gi 1220209781 188 YCYCGGPGEFY--EFECCVCR 206
Cdd:cd15580     1 YCYCGGPGDWYlkMLQCCKCK 21

PHD finger found in protein AF-10 and AF-17; This family includes protein AF-10 and AF-17. AF-10, also termed ALL1 (acute lymphoblastic leukemia)-fused gene from chromosome 10 protein, is a transcription factor encoded by gene AF10, a translocation partner of the MLL (mixed-lineage leukemia) oncogene in leukemia. AF-10 has been implicated in the development of leukemia following chromosomal rearrangements between the AF10 gene and one of at least two other genes, MLL and CALM. It plays a key role in the survival of uncommitted hematopoietic cells. Moreover, AF-10 functions as a follistatin-related gene (FLRG)-interacting protein. The interaction with FLRG enhances AF10-dependent transcription. It interacts with the human counterpart of the yeast Dot1, hDOT1L, and may act as a bridge for the recruitment of hDOT1L to the genes targeted by MLL-AF10. It also interacts with the synovial sarcoma associated SYT protein and may play a role in synovial sarcomas and acute leukemias. AF-17, also termed ALL1-fused gene from chromosome 17 protein, is encoded by gene AF17 that has been identified in hematological malignancies as translocation partners of the mixed lineage leukemia gene MLL. It is a putative transcription factor that may play a role in multiple signaling pathways. It is involved in chromatin-mediated gene regulation mechanisms. It functions as a component of the multi-subunit Dot1 complex (Dotcom) and plays a role in the Wnt/Wingless signaling pathway. It also seems to be a downstream target of the beta-catenin/T-cell factor pathway, and participates in G2-M progression. Moreover, it may function as an important regulator of ENaC-mediated Na+ transport and thus blood pressure. Both AF-10 and AF-17 contain an N-terminal canonical Cys4HisCys3 plant homeodomain (PHD) finger followed by a non-canonical extended PHD (ePHD) finger, Cys2HisCys5HisCys2His. The PHD finger is involved in their homo-oligomerization. In the C-terminal region, they possess a leucine zipper domain and a glutamine-rich region. This family also includes ZFP-1, the Caenorhabditis elegans AF10 homolog. It was originally identified as a factor promoting RNAi interference in C. elegans. It also acts as a Dot1-interacting protein that opposes H2B ubiquitination to reduce polymerase II (Pol II) transcription. This model corresponds to the canonical Cys4HisCys3 PHD finger.

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gi 1220209781  90 CCVCRSETVVPGNRLVSC--EKCRHAYHQDC----HVPRAPapgegegtsWVCRQC 139
Cdd:cd15574     2 CCVCSDERGWAENPLVYCdgHGCNVAVHQACygivQVPTGP---------WFCRKC 48