DNA-binding domain of the orphan nuclear receptor, nerve growth factor-induced-B; DNA-binding domain (DBD) of the orphan nuclear receptor, nerve growth factor-induced-B (NGFI-B) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. NGFI-B interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. NGFI-B is a member of the nuclear-steroid receptor superfamily. NGFI-B is classified as an orphan receptor because no ligand has yet been identified. NGFI-B is an early immediate gene product of embryo development that is rapidly produced in response to a variety of cellular signals including nerve growth factor. It is involved in T-cell-mediated apoptosis, as well as neuronal differentiation and function. NGFI-B regulates transcription by binding to a specific DNA target upstream of its target genes and regulating the rate of transcriptional initiation. NGFI-B binds to the NGFI-B response element (NBRE) 5'-(A/T)AAAGGTCA as a monomer. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, NGFI-B has a central well-conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 646698280 175 QLCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVRT 249
Cdd:cd06969    1 GLCAVCGDNAACQHYGVRTCEGCKGFFKRTVQKNAKYVCLANKNCPVDKRRRNRCQYCRFQKCLQVGMVKEVVRT 75

DNA-binding domain of the orphan nuclear receptor, nerve growth factor-induced-B; DNA-binding domain (DBD) of the orphan nuclear receptor, nerve growth factor-induced-B (NGFI-B) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. NGFI-B interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. NGFI-B is a member of the nuclear-steroid receptor superfamily. NGFI-B is classified as an orphan receptor because no ligand has yet been identified. NGFI-B is an early immediate gene product of embryo development that is rapidly produced in response to a variety of cellular signals including nerve growth factor. It is involved in T-cell-mediated apoptosis, as well as neuronal differentiation and function. NGFI-B regulates transcription by binding to a specific DNA target upstream of its target genes and regulating the rate of transcriptional initiation. NGFI-B binds to the NGFI-B response element (NBRE) 5'-(A/T)AAAGGTCA as a monomer. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, NGFI-B has a central well-conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 646698280 175 QLCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVRT 249
Cdd:cd06969    1 GLCAVCGDNAACQHYGVRTCEGCKGFFKRTVQKNAKYVCLANKNCPVDKRRRNRCQYCRFQKCLQVGMVKEVVRT 75

c4 zinc finger in nuclear hormone receptors;

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280   176 LCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKE 245
Cdd:smart00399   1 LCCVCGDHASGFHFGVCSCRACKAFFRRTVNLRYKYRCDRKNNCSINKRYRCRCRACRLKKCLGVGMDPE 70

Ligand-binding domain of nuclear hormone receptor; This all helical domain is involved in binding the hormone in these receptors.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280  306 NEPPMSEAEKI--QQFYSLLTTSVDVIRTFADKIPGFVELNRDDQELLFQSASLELFVLRLAHRTRPDDTKLTFCNGVVL 383
Cdd:pfam00104   1 KSPPLKKLRKAtkEELCELWERDLLLVAEWAKHFPEFQELPLEDQMALLKSFWLEWLRLEKAARSAKLRRKKILGEDVLM 80

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280  384 --------------------DKQQCQRSFGDWLHAILDFCHSLHAMDIDISAFACLCALTL---VTERHGLKEPHKVEQL 440
Cdd:pfam00104  81 isdddamkfveddsswctnyDLEQLLFFLPFFNSYFFELVKPLRELNPDDEELAYLLAQLLfdyAGDGLSGEILEIVEKL 160

                         170       180       190
                  ....*....|....*....|....*....|....*....
gi 646698280  441 QMKIIGSLRDHVTyNAEAQRkthyFSRLLGKLPELRSLS 479
Cdd:pfam00104 161 QEKLANELHDYYV-NKYSGR----LAKLLKILPSLRKIS 194

The ligand binding domain of Nurr1 and related nuclear receptor proteins, members of nuclear receptor superfamily; The ligand binding domain of nuclear receptor Nurr1_like: This family of nuclear receptors, including Nurr1, Nerve growth factor-induced-B (NGFI-B) and DHR38 are involved in the embryo development. Nurr1 is a transcription factor that is expressed in the embryonic ventral midbrain and is critical for the development of dopamine (DA) neurons. Structural studies have shown that the ligand binding pocket of Nurr1 is filled by bulky hydrophobic residues, making it unable to bind to ligands. Therefore, it belongs to the class of orphan receptors. However, Nurr1 forms heterodimers with RXR and can promote signaling via its partner, RXR. NGFI-B is an early immediate gene product of embryo development that is rapidly produced in response to a variety of cellular signals including nerve growth factor. It is involved in T-cell-mediated apoptosis, as well as neuronal differentiation and function. NGFI-B regulates transcription by binding to a specific DNA target upstream of its target genes and regulating the rate of tr anscriptional initiation. Another group of receptor in this family is DHR38. DHR38 is the Drosophila homolog to the vertebrate NGFI-B-type orphan receptor. It interacts with the USP component of the ecdysone receptor complex, suggesting that DHR38 might modulate ecdysone-triggered signals in the fly, in addition to the ECR/USP pathway. Nurr1_like proteins exhibit a modular structure that is characteristic for nuclear receptors; they have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a non-conserved hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 277 LITALVRAHVDTTPDLANLDYSQYREPTPNEPPMSEAEKIQQFYSLLTTSVDVIRTFADKIPGFVELNRDDQELLFQSAS 356
Cdd:cd06945    4 LITALVRAHVDSTPRKTDLDYSKIQENVDPVPPKPDSQQVQQFYDLLTGSVDVIRQWAEKIPGFKDLHREDQDLLLESAF 83

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 357 LELFVLRLAHRTRPDDTKLTFCNGVVLDKQQCQRSFGDWLHAILDF-CHSLHAMDIDISAFACLCALTLVTERHGLKEPH 435
Cdd:cd06945   84 LELFVLRLAYRSNPVDGKLVFCNGLVLHRLQCVRGFGEWLDSILAFsSSLQSLLLDDISAFCCLALLLLITERHGLKEPK 163

                        170       180       190       200       210       220       230
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 646698280 436 KVEQLQMKIIGSLRDHVTYNAEAQRKTHYFSRLLGKLPELRSLSVQGLQRIFYLKLEDLVPAPPLIENMFVASLPF 511
Cdd:cd06945  164 KVEELQNKIISCLRDHVTSNYPGQDKPNRLSKLLLKLPELRTLSKKGLQRIFFLKLEDLLPPPPLIDKRFLDTLPF 239

The ligand binding domain of Nurr1, a member of conserved family of nuclear receptors; The ligand binding domain of nuclear receptor Nurr1: Nurr1 belongs to the conserved family of nuclear receptors. It is a transcription factor that is expressed in the embryonic ventral midbrain and is critical for the development of dopamine (DA) neurons. Structural studies have shown that the ligand binding pocket of Nurr1 is filled by bulky hydrophobic residues, making it unable to bind to ligands. Therefore, it belongs to the class of orphan receptors. However, Nurr1 forms heterodimers with RXR and can promote signaling via its partner, RXR. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, Nurr1 has a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 277 LITALVRAHVDTTPDLANLDYSQYREPTPNEPPMSEAEKIQQFYSLLTTSVDVIRTFADKIPGFVELNRDDQELLFQSAS 356
Cdd:cd07071    4 LISALVRAHVDSNPAMTSLDYSRFQANPDYQMSGDDTQHIQQFYDLLTGSMEIIRGWAEKIPGFTDLPKADQDLLFESAF 83

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 357 LELFVLRLAHRTRPDDTKLTFCNGVVLDKQQCQRSFGDWLHAILDFCHSLHAMDIDISAFACLCALTLVTERHGLKEPHK 436
Cdd:cd07071   84 LELFVLRLAYRSNPVEGKLIFCNGVVLHRLQCVRGFGEWIDSIVEFSSNLQNMNIDISAFSCIAALAMVTERHGLKEPKR 163

                        170       180       190       200       210       220       230
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 646698280 437 VEQLQMKIIGSLRDHVTYNAEAQRKTHYFSRLLGKLPELRSLSVQGLQRIFYLKLEDLVPAPPLIENMFVASLPF 511
Cdd:cd07071  164 VEELQNKIVNCLKDHVTFNNGGLNRPNYLSKLLGKLPELRTLCTQGLQRIFYLKLEDLVPPPAIIDKLFLDTLPF 238

DNA-binding domain of nuclear receptors is composed of two C4-type zinc fingers; DNA-binding domain of nuclear receptors is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. It interacts with a specific DNA site upstream of the target gene and modulates the rate of transcriptional initiation. Nuclear receptors form a superfamily of ligand-activated transcription regulators, which regulate various physiological functions, from development, reproduction, to homeostasis and metabolism in animals (metazoans). The family contains not only receptors for known ligands but also orphan receptors for which ligands do not exist or have not been identified. NRs share a common structural organization with a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD). Most nuclear receptors bind as homodimers or heterodimers to their target sites, which consist of two hexameric half-sites. Specificity is determined by the half-site sequence, the relative orientation of the half-sites and the number of spacer nucleotides between the half-sites. However, a growing number of nuclear receptors have been reported to bind to DNA as monomers.

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 646698280 177 CAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVR 248
Cdd:cd06916    1 CAVCGDKASGYHYGVLTCEGCKGFFRRSVRRNLEYTCPAGGNCVIDKRNRNRCQACRLKKCLAVGMRKEAVR 72

The ligand binding domain (LBD) of retinoic acid receptor (RAR), a members of the nuclear receptor superfamily; The ligand binding domain (LBD) of retinoic acid receptor (RAR): Retinoic acid receptors are members of the nuclear receptor (NR) superfamily of ligand-regulated transcription factors. RARs mediate the biological effect of retinoids, including both naturally dietary vitamin A (retinol) metabolites and active synthetic analogs. Retinoids play key roles in a wide variety of essential biological processes, such as vertebrate embryonic morphogenesis and organogenesis, differentiation and apoptosis, and homeostasis. RARs function as heterodimers with retinoic X receptors by binding to specific RAR response elements (RAREs) found in the promoter regions of retinoid target genes. In the absence of ligand, the RAR-RXR heterodimer recruits the corepressor proteins NCoR or AMRT, and associated factors such as histone deacetylases or DNA-methyltransferases, leading to an inactive condensed chromatin structure, preventing transcription. Upon ligand binding, the corepressors are released, and coactivator complexes such as histone acetyltransferase or histone arginine methyltransferases are recruited to activate transcription. There are three RAR subtypes (alpha, beta, gamma), originating from three distinct genes. For each subtype, several isoforms exist that differ in their N-terminal region, allowing retinoids to exert their pleiotropic effects. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, retinoic acid receptors have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a non-conserved hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 277 LITALVRAHVDTTPDLANLdySQYREPTPNEPPMS-EAEKIQQFYSLLTTSVDVIRTFADKIPGFVELNRDDQELLFQSA 355
Cdd:cd06937    2 LITKVRKAHQETFPSLCQL--GKYTTNSSADQRVRlDLGLWDKFSELSTKCIIKIVEFAKRLPGFTTLTIADQITLLKAA 79

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 356 SLELFVLRLAHRTRPDDTKLTFCNGVVLDKQQCQRS-FGDWLHAILDFCHSLHAMDIDISAFACLCALTLVTE-RHGLKE 433
Cdd:cd06937   80 CLDILILRICTRYTPEQDTMTFSDGLTLNRTQMHNAgFGPLTDLVFTFANQLLPLEMDDTEIGLLSAICLICGdRQDLEE 159

                        170       180       190       200       210       220       230
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 646698280 434 PHKVEQLQMKIIGSLRdhvtYNAEAQR--KTHYFSRLLGKLPELRSLSVQGLQRIFYLKLEDLVPAPPLIENM 504
Cdd:cd06937  160 PDRVEKLQEPLLEALK----IYARKRRpdKPHMFPKMLMKITDLRSISAKGAERVITLKMEIPGPMPPLISEM 228

DNA-binding domain of thyroid hormone receptors (TRs) is composed of two C4-type zinc fingers; DNA-binding domain of thyroid hormone receptors (TRs) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. TR interacts with the thyroid response element, which is a DNA site with direct repeats of the consensus sequence 5'-AGGTCA-3' separated by one to five base pairs, upstream of target genes and modulates the rate of transcriptional initiation. Thyroid hormone receptor (TR) mediates the actions of thyroid hormones, which play critical roles in growth, development, and homeostasis in mammals. They regulate overall metabolic rate, cholesterol and triglyceride levels, and heart rate, and affect mood. TRs are expressed from two separate genes (alpha and beta) in human and each gene generates two isoforms of the receptor through differential promoter usage or splicing. TRalpha functions in the heart to regulate heart rate and rhythm and TRbeta is active in the liver and other tissues. The unliganded TRs function as transcription repressors, by binding to thyroid hormone response elements (TRE) predominantly as homodimers, or as heterodimers with retinoid X-receptors (RXR), and being associated with a complex of proteins containing corepressor proteins. Ligand binding promotes corepressor dissociation and binding of a coactivator to activate transcription. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, TR has a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 176 LCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVRTDSLKGR 255
Cdd:cd06961    1 PCVVCGDKATGYHYRCITCEGCKGFFRRTVQKKLSYSCKGEGKCEIDKVTRNQCQECRFKKCIAVGMAKDLVLDDRKRGA 80

                 ....
gi 646698280 256 RGRL 259
Cdd:cd06961   81 KRKL 84

DNA-binding domain of ecdysone-induced DHR4 orphan nuclear receptor is composed of two C4-type zinc fingers; DNA-binding domain of ecdysone-induced DHR4 orphan nuclear receptor is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which coordinates a single zinc atom. This domain interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. Ecdysone-induced orphan receptor DHR4 is a member of the nuclear receptor family. DHR4 is expressed during the early Drosophila larval development and is induced by ecdysone. DHR4 coordinates growth and maturation in Drosophila by mediating endocrine response to the attainment of proper body size during larval development. Mutations in DHR4 result in shorter larval development which translates into smaller and lighter flies. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, DHR4 has a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 174 SQLCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVRTDSLK 253
Cdd:cd07168    6 PKLCSICEDKATGLHYGIITCEGCKGFFKRTVQNKRVYTCVGDGRCEITKAQRNRCQYCRFRKCIRKGMMLAAVREDRMP 85

                 ...
gi 646698280 254 GRR 256
Cdd:cd07168   86 GGR 88

DNA-binding domain of retinoid X receptor (RXR) is composed of two C4-type zinc fingers; DNA-binding domain of retinoid X receptor (RXR) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. RXR functions as a DNA binding partner by forming heterodimers with other nuclear receptors including CAR, FXR, LXR, PPAR, PXR, RAR, TR, and VDR. All RXR heterodimers preferentially bind response elements composed of direct repeats of two AGGTCA sites with a 1-5 bp spacer. RXRs can play different roles in these heterodimers. RXR acts either as a structural component of the heterodimer complex, required for DNA binding but not acting as a receptor, or as both a structural and a functional component of the heterodimer, allowing 9-cis RA to signal through the corresponding heterodimer. In addition, RXR can also form homodimers, functioning as a receptor for 9-cis RA, independently of other nuclear receptors. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, RXR has a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 646698280 176 LCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVR 248
Cdd:cd06956    2 ICAICGDRASGKHYGVYSCEGCKGFFKRTVRKDLTYTCRDNKDCLIDKRQRNRCQYCRYQKCLAMGMKREAVQ 74

DNA-binding domain of estrogen related receptors (ERR) is composed of two C4-type zinc fingers; DNA-binding domain of estrogen related receptors (ERRs) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which coordinates a single zinc atom. ERR interacts with the palindromic inverted repeat, 5'GGTCAnnnTGACC-3', upstream of the target gene and modulates the rate of transcriptional initiation. The estrogen receptor-related receptors (ERRs) are transcriptional regulators, which are closely related to the estrogen receptor (ER) family. Although ERRs lack the ability to bind to estrogen and are so-called orphan receptors, they share target genes, co-regulators and promoters with the estrogen receptor (ER) family. By targeting the same set of genes, ERRs seem to interfere with the classic ER-mediated estrogen response in various ways. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, ERR has a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a non-conserved hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 173 PSQLCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVRTDSL 252
Cdd:cd07170    3 PKRLCLVCGDIASGYHYGVASCEACKAFFKRTIQGNIEYSCPATNECEITKRRRKSCQACRFMKCLKVGMLKEGVRLDRV 82

                 ....
gi 646698280 253 KGRR 256
Cdd:cd07170   83 RGGR 86

DNA-binding domain of heptocyte nuclear factor 4 (HNF4) is composed of two C4-type zinc fingers; DNA-binding domain of hepatocyte nuclear factor 4 (HNF4) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. HNF4 interacts with a DNA site, composed of two direct repeats of AGTTCA with 1 bp spacer, which is upstream of target genes and modulates the rate of transcriptional initiation. HNF4 is a member of the nuclear receptor superfamily. HNF4 plays a key role in establishing and maintenance of hepatocyte differentiation in the liver. It is also expressed in gut, kidney, and pancreatic beta cells. HNF4 was originally classified as an orphan receptor, but later it is found that HNF4 binds with very high affinity to a variety of fatty acids. However, unlike other nuclear receptors, the ligands do not act as a molecular switch for HNF4. They seem to constantly bind to the receptor, which is constitutively active as a transcription activator. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, HNF4 has a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 646698280 177 CAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVRTD 250
Cdd:cd06960    1 CAVCGDRATGKHYGVLSCNGCKGFFRRSVRKNRTYTCRFGGNCVVDKDKRNACRYCRFKKCLEVGMDPEAVQNE 74

DNA-binding domain of Drosophila ecdysone-induced protein 78 (E78) like is composed of two C4-type zinc fingers; DNA-binding domain of proteins similar to Drosophila ecdysone-induced protein 78 (E78) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which coordinates a single zinc atom. E78 interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. Drosophila ecdysone-induced protein 78 (E78) is a transcription factor belonging to the nuclear receptor superfamily. E78 is a product of the ecdysone-inducible gene found in an early late puff locus at position 78C during the onset of Drosophila metamorphosis. An E78 orthologue from the Platyhelminth Schistosoma mansoni (SmE78) has also been identified. It is the first E78 orthologue known outside of the molting animals--the Ecdysozoa. The SmE78 may be involved in transduction of an ecdysone signal in S. mansoni, consistent with its function in Drosophila. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, E78-like receptors have a central well conserved DNA-binding domain (DBD), a variable N-terminal domain, a non-conserved hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 177 CAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVrtdslkgRR 256
Cdd:cd07165    1 CKVCGDKASGYHYGVTSCEGCKGFFRRSIQKQIEYRCLRDGKCEIIRLNRNRCQYCRFKKCLAAGMSKDSV-------RY 73

                 ....*.
gi 646698280 257 GRLPSK 262
Cdd:cd07165   74 GRIPNR 79

The DNA-binding domain of the photoreceptor cell-specific nuclear receptor (PNR) nuclear receptor-like family; The DNA-binding domain of the photoreceptor cell-specific nuclear receptor (PNR) nuclear receptor-like family is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which coordinates a single zinc atom. PNR interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. This family includes nuclear receptor Tailless (TLX), photoreceptor cell-specific nuclear receptor (PNR) and related receptors. TLX is an orphan receptor that plays a key role in neural development by regulating cell cycle progression and exit of neural stem cells in the developing brain. PNR is expressed only in the outer layer of retinal photoreceptor cells. It may be involved in the signaling pathway regulating photoreceptor differentiation and/or maintenance. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, PNR-like receptors have a central well-conserved DNA-binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 646698280 177 CAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLA-DKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVR 248
Cdd:cd07154    1 CKVCGDRSSGKHYGVYACDGCSGFFKRSIRRNLLYTCKAgNGSCVVDKARRNQCQACRLKKCLEVSMNKDAVQ 73

DNA-binding domain of chicken ovalbumin upstream promoter transcription factors (COUP-TFs) is composed of two C4-type zinc fingers; DNA-binding domain of chicken ovalbumin upstream promoter transcription factors (COUP-TFs) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. COUP-TFs are orphan members of the steroid/thyroid hormone receptor superfamily. They are expressed in many tissues and are involved in the regulation of several important biological processes, such as neurogenesis, organogenesis, cell fate determination, and metabolic homeostasis. COUP-TFs homodimerize or heterodimerize with retinoid X receptor (RXR) and a few other nuclear receptors and bind to a variety of response elements that are composed of imperfect AGGTCA direct or inverted repeats with various spacings. COUP-TFs are generally considered to be repressors of transcription for other nuclear hormone receptors such as retinoic acid receptor (RAR), thyroid hormone receptor (TR), vitamin D receptor (VDR), peroxisome proliferator activated receptor (PPAR), and hepatocyte nuclear factor 4 (HNF4). Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, COUP-TFs have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 646698280 177 CAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVVR 248
Cdd:cd06958    1 CVVCGDKSSGKHYGQFTCEGCKSFFKRSVRRNLTYTCRGNRNCPIDQHHRNQCQYCRLKKCLKVGMRREAVQ 72

Ligand-binding domain of nuclear receptor family 1; Ligand-binding domain (LBD) of nuclear receptor (NR) family 1: This is one of the major subfamily of nuclear receptors, including thyroid receptor, retinoid acid receptor, ecdysone receptor, farnesoid X receptor, vitamin D receptor, and other related receptors. Nuclear receptors form a superfamily of ligand-activated transcription regulators, which regulate various physiological functions, from development, reproduction, to homeostasis and metabolism in animals (metazoans). The family contains not only receptors for known ligands but also orphan receptors for which ligands do not exist or have not been identified. NRs share a common structural organization with a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 314 EKIQQFYSLLTTSVDVIRTFADKIPGFVELNRDDQELLFQSASLELFVLRLAHRTRPDDTKLTFCNGVVLDKQQCQRS-F 392
Cdd:cd06929    2 EKFDHFTEIMTVAIRRVVEFAKRIPGFRELSQEDQIALLKGGCFEILLLRSATLYDPEKNSLTFGDGKGNSRDVLLNGgF 81

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 393 GDWLHAILDFCHSLHAMDIDISAFACLCALTLVTE-RHGLKEPHKVEQLQMKIIGSLRDHVtyNAEAQRKTHYFSRLLGK 471
Cdd:cd06929   82 GEFIEPLFEFAEKMNKLQLDDNEYALLTAIVLFSPdRPGLQDVDTVEKLQERLLEALQRYL--KVNHPDAPQMFAKLLKK 159

                        170
                 ....*....|....*
gi 646698280 472 LPELRSLSVQGLQRI 486
Cdd:cd06929  160 LTELRTLNELHAELL 174

The ligand binding domain (LBD) of the Ecdysone receptor, a member of the nuclear receptors super family; The ligand binding domain (LBD) of the ecdysone receptor: The ecdysone receptor (EcR) belongs to the superfamily of nuclear receptors (NRs) of ligand-dependent transcription factors. Ecdysone receptor is present only in invertebrates and regulates the expression of a large number of genes during development and reproduction. ECR functions as a heterodimer by partnering with ultraspiracle protein (USP), the ortholog of the vertebrate retinoid X receptor (RXR). The natural ligands of ecdysone receptor are ecdysteroids#the endogenous steroidal hormones found in invertebrates. In addition, insecticide bisacylhydrazine used against pests has shown to act on EcR. EcR must be dimerised with a USP for high-affinity ligand binding to occur. The ligand binding triggers a conformational change in the C-terminal part of the EcR ligand-binding domain that leads to transcriptional activation of genes controlled by EcR. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, ec dysone receptors have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a non-conserved hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 299 QYREPTPN------EPPMSEAEKIQQFYSLLTT----SVDVIRTFADKIPGFVELNRDDQELLFQSASLELFVLRLAHRT 368
Cdd:cd06938   14 EFEQPSEEdlkritEHPQNDEDQSDMRFRHITEmtilTVQLIVEFAKRLPGFDKLSREDQITLLKACSSEVMMLRVARRY 93

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 369 RPDDTKLTFCNgvvlDKQQCQRSF-----GDWLHAILDFCHSLHAMDIDISAFACLCALTLVTERHGLKEPHKVEQLQMK 443
Cdd:cd06938   94 DAKTDSIVFAN----NQPYTRDSYrkagmGDSAEDLFRFCRAMCSMKVDNAEYALLTAIVIFSDRPGLLQPKKVEKIQEI 169

                        170       180       190       200       210
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 646698280 444 IIGSLRDHVTyNAEAQRKTHYFSRLLGKLPELRSLSVQGLQRIFYLKLEDLVpAPPLIE 502
Cdd:cd06938  170 YLEALRAYVD-NRRPPSQRVIFAKLLSILTELRTLGNQNSEMCFSLKLKNRK-LPPFLA 226

Ligand binding domain of hormone receptors;

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280   330 IRTFADKIPGFVELNRDDQELLFQSASLELFVLRLAHRTRPDDTKLTFCNGVVLDKQQC-----QRSFGDWLHAILDFCH 404
Cdd:smart00430   8 TVEWAKSFPGFRELSLEDQIVLLKSFWFELLLLELAYRSVKLKKELLLAPDGTYIRPDAvlelrKLFSPFLDRILSELVK 87

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280   405 SLHAMDIDISAFACLCALTLVT-ERHGLKEP--HKVEQLQMKIIGSLRDHVTYNaeaqRKTHY---FSRLLGKLPELRSL 478
Cdd:smart00430  88 PLRELKLDDEEYALLKAIVLFNpAVPGLSEEgkEIVEKLQEKYANALHDYYLKN----YPMNYpgrFAKLLLILPELRKI 163

The ligand binding domain of Drosophila ecdysone-induced protein 78, a member of the nuclear receptor superfamily; The ligand binding domain (LBD) of Drosophila ecdysone-induced protein 78 (E78) like: Drosophila ecdysone-induced protein 78 (E78) is a transcription factor belonging to the nuclear receptor superfamily. E78 is a product of the ecdysone-inducible gene found in an early late puff locus at position 78C during the onset of Drosophila metamorphosis. Two isoforms of E78, E78A and E78B, are expressed from two nested transcription units. An E78 orthologue from the Platyhelminth Schistosoma mansoni (SmE78) has also been identified. It is the first E78 orthologue known outside of the molting animals--the Ecdysozoa. SmE78 may be involved in transduction of an ecdysone signal in S. mansoni, consistent with its function in Drosophila. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, E78-like receptors have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a non-conserved hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 317 QQFYSLLTTSVDVIRTFADKIPGFVELNRDDQELLFQSASLELFVLRLAHRTRPDDTKLTFCNGVVLDKQQCQRSFG-DW 395
Cdd:cd06941    5 QQLSEALTPSVQRVVEFAKRIPGFCDLSQDDQLLLIKAGFFEVWLVRISRLINSKSGSITFDDGISISRQQLDIIYDsDF 84

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 396 LHAILDFCHSLHAMDIDISAFACLCALTLVT-ERHGLKEPHKVEQLQMKIIGSLRDHVTYN--AEAQrkthYFSRLLGKL 472
Cdd:cd06941   85 VKALFEFSDSFNSLGLSDTEVALFCAVVLLSpDRIGLSEPKKVAILQDRVLEALKVQVSRNrpAEAQ----LFASLLMKI 160

                 ....*..
gi 646698280 473 PELRSLS 479
Cdd:cd06941  161 PELRSIG 167

DNA-binding domain of the photoreceptor cell-specific nuclear receptor (PNR) like is composed of two C4-type zinc fingers; The DNA-binding domain of the photoreceptor cell-specific nuclear receptor (PNR) nuclear receptor-like family is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which coordinates a single zinc atom. PNR interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. This family includes nuclear receptor Tailless (TLX), photoreceptor cell-specific nuclear receptor (PNR) and related receptors. TLX is an orphan receptor that plays a key role in neural development by regulating cell cycle progression and exit of neural stem cells in the developing brain. PNR is expressed only in the outer layer of retinal photoreceptor cells. It may be involved in the signaling pathway regulating photoreceptor differentiation and/or maintenance. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, PNR-like receptors have a central well-conserved DNA-binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 646698280 177 CAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADK-ACPVDKRRRNRCQFCRFQKCLAVGMVKEVVRTD 250
Cdd:cd06957    1 CKVCGDKSYGKHYGVYCCDGCSCFFKRSVRKGIIYTCIAGNgNCVVDKARRNWCPFCRLQKCFAVGMNRAAVQEE 75

DNA-binding domain of the photoreceptor cell-specific nuclear receptor (PNR) is composed of two C4-type zinc fingers; DNA-binding domain of the photoreceptor cell-specific nuclear receptor (PNR) is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. PNR interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. PNR is a member of the nuclear receptor superfamily of the ligand-activated transcription factors. PNR is expressed only in the outer layer of retinal photoreceptor cells. It may be involved in the signaling pathway regulating photoreceptor differentiation and/or maintenance. It most likely binds to DNA as a homodimer. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, PNR has a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 171 QSPSQLCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKA-CPVDKRRRNRCQFCRFQKCLAVGMVKEVVRT 249
Cdd:cd06970    3 LNPGLLCRVCGDTSSGKHYGIYACNGCSGFFKRSVRRKLIYRCQAGTGmCPVDKAHRNQCQACRLKKCLQAGMNKDAVQN 82

                 .
gi 646698280 250 D 250
Cdd:cd06970   83 E 83

DNA-binding domain of Liver X receptors (LXRs) family is composed of two C4-type zinc fingers; DNA-binding domain of Liver X receptors (LXRs) family is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. LXR interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. LXR operates as cholesterol sensor which protects cells from cholesterol overload by stimulating reverse cholesterol transport from peripheral tissues to the liver and its excretion in the bile. Oxidized cholesterol derivatives or oxysterols were identified as specific ligands for LXRs. LXR functions as a heterodimer with the retinoid X receptor (RXR) which may be activated by either LXR agonist or 9-cis retinoic acid, a specific RXR ligand. The LXR/RXR complex binds to a liver X receptor response element (LXRE) in the promoter region of target genes. The ideal LXRE sequence is a direct repeat-4 (DR-4) DNA fragment consisting of two AGGTCA hexameric half-sites separated by a 4-nucleotide spacer. LXR has typical NR modular structure with a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and the ligand binding domain (LBD) at the C-terminal.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 167 GPAPQS-PSQLCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKE 245
Cdd:cd07160   10 GPAPKMlGNEVCSVCGDKASGFHYNVLSCEGCKGFFRRSVIKGAQYVCKNGGKCQMDMYMRRKCQECRLRKCREAGMREQ 89

                 ....*
gi 646698280 246 VVRTD 250
Cdd:cd07160   90 CVLSE 94

The DNA-binding domain of vitamin D receptors (VDR) like nuclear receptor family is composed of two C4-type zinc fingers; The DNA-binding domain of vitamin D receptors (VDR) like nuclear receptor family is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. This domain interacts with specific DNA site upstream of the target gene and modulates the rate of transcriptional initiation. This family includes three types of nuclear receptors: vitamin D receptors (VDR), constitutive androstane receptor (CAR) and pregnane X receptor (PXR). VDR regulates calcium metabolism, cellular proliferation and differentiation. PXR and CAR function as sensors of toxic byproducts of cell metabolism and of exogenous chemicals, to facilitate their elimination. The DNA binding activity is regulated by their corresponding ligands. VDR is activated by Vitamin D; CAR and PXR respond to a diverse array of chemically distinct ligands, including many endogenous compounds and clinical drugs. Like other nuclear receptors, xenobiotic receptors have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 646698280 177 CAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVV 247
Cdd:cd07156    1 CGVCGDRATGYHFNAMTCEGCKGFFRRSMKRKARFTCPFNGDCEITKDNRRHCQACRLKKCLDIGMKKEMI 71

The DNA-binding domain of Ecdysone receptor (EcR) like nuclear receptor family is composed of two C4-type zinc fingers; The DNA-binding domain of Ecdysone receptor (EcR) like nuclear receptor family is composed of two C4-type zinc fingers. Each zinc finger contains a group of four Cys residues which co-ordinates a single zinc atom. EcR interacts with specific DNA sites upstream of the target gene and modulates the rate of transcriptional initiation. This family includes three types of nuclear receptors: Ecdysone receptor (EcR), Liver X receptor (LXR) and Farnesoid X receptor (FXR). The DNA binding activity is regulated by their corresponding ligands. The ligands for EcR are ecdysteroids; LXR is regulated by oxidized cholesterol derivatives or oxysterols; and bile acids control FXR's activities. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, EcR-like receptors have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a flexible hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 646698280 176 LCAVCGDTAACQHYGVRTCEGCKGFFKRTVQKGSKYVCLADKACPVDKRRRNRCQFCRFQKCLAVGMVKEVV 247
Cdd:cd06959    1 NCVVCGDKASGFHYGVLSCEGCKGFFRRSVTKGAVYACKFGNKCEMDMYMRRKCQECRLRKCKAAGMRPDCL 72

The ligand binding domain of Retinoid-related orphan receptors, of the nuclear receptor superfamily; The ligand binding domain (LBD) of Retinoid-related orphan receptors (RORs): Retinoid-related orphan receptors (RORs) are transcription factors belonging to the nuclear receptor superfamily. RORs are key regulators of many physiological processes during embryonic development. RORs bind as monomers to specific ROR response elements (ROREs) consisting of the consensus core motif AGGTCA preceded by a 5-bp A/T-rich sequence. Transcription regulation by RORs is mediated through certain corepressors, as well as coactivators. There are three subtypes of retinoid-related orphan receptors (RORs), alpha, beta, and gamma that differ only in N-terminal sequence and are distributed in distinct tissues. RORalpha plays a key role in the development of the cerebellum, particularly in the regulation of the maturation and survival of Purkinje cells. RORbeta expression is largely restricted to several regions of the brain, the retina, and pineal gland. RORgamma is essential for lymph node organogenesis. Recently, it has been su ggested that cholesterol or a cholesterol derivative is the natural ligand of RORalpha. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, retinoid-related orphan receptors have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a non-conserved hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 323 LTTSVDVIRTFADKIPGFVELNRDDQELLFQSASLELFVLRLAHRTRPDDtkltfcNGVVLDK----QQCQRSFG--DWL 396
Cdd:cd06939   57 ITEAIQYVVEFAKRIPGFMELCQNDQIVLLKAGSLEVVLVRMSRAFNPSN------NTVLFDGkyapIDLFKSLGcdDLI 130

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 397 HAILDFCHSLHAMDIDISAFACLCALTLVT-ERHGLKEPHKVEQLQMKIIGSLRDHVtynaeaqRKTH----YFSRLLGK 471
Cdd:cd06939  131 SAVFDFAKSLCELKLTEDEIALFSALVLISaDRPGLQEKRKVEKLQQKIELALRHVL-------QKNHgddtILTKLLAK 203

                        170       180       190
                 ....*....|....*....|....*....|....*...
gi 646698280 472 LPELRSLSVQGLQRIFYLKLEDLVPA----PPLIENMF 505
Cdd:cd06939  204 MPTLRALCSLHMEKLQKFKQSYPDIVhlefPPLYKELF 241

The ligand binding domain of REV-ERB receptors, members of the nuclear receptor superfamily; The ligand binding domain (LBD) of REV-ERB receptors: REV-ERBs are transcriptional regulators belonging to the nuclear receptor superfamily. They regulate a number of physiological functions including the circadian rhythm, lipid metabolism, and cellular differentiation. The LBD domain of REV-ERB is unusual in the nuclear receptor family by lacking the AF-2 region that is responsible for coactivator interaction. REV-ERBs act as constitutive repressors because of their inability to bind coactivators. REV-ERB receptors can bind to two classes of DNA response elements as either a monomer or heterodimer, indicating functional diversity. When bound to the DNA, they recruit corepressors (NcoR/histone deacetylase 3) to the promoter, resulting in repression of the target gene. The porphyrin heme has been demonstrated to function as a ligand for REV-ERB. Like other members of the nuclear receptor (NR) superfamily of ligand-activated transcription factors, REV-ERB receptors have a central well conserved DNA binding domain (DBD), a variable N-terminal domain, a non-conserved hinge and a C-terminal ligand binding domain (LBD).

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 306 NEPPMSEAEKIQQFYSLLTTSVDVIRTFADKIPGFVELNRDDQELLFQSASLELFVLRLAHRTRPDDTKLTFCNGVVLDK 385
Cdd:cd06940    4 VDPPKSGHEIWEEFSMSFTPAVREVVEFAKRIPGFRDLSQHDQVTLLKAGTFEVLMVRFASLFDAKERSVTFLSGQKYSV 83

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 646698280 386 QQCQRS-FGDWLHAILDFCHSLHAMDIDISAFACLCALTLVT-ERHGLKEPHKVEQLQMKIIGSLRDHVTYNAEAQrkTH 463
Cdd:cd06940   84 DDLHSMgAGDLLNSMFDFSEKLNSLQLSDEEMGLFTAVVLVSaDRSGLENVNLVEALQETLIRALRTLIAKNHPNE--PS 161