4q0a

From Proteopedia

(Difference between revisions)

Revision as of 09:00, 5 January 2015

Vitamin D Receptor complex with lithocholic acid

Structural highlights

4q0a is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	2hc4, 2hcd
Resources:	FirstGlance, OCA, RCSB, PDBsum

Disease

[NCOA2_HUMAN] Note=Chromosomal aberrations involving NCOA2 may be a cause of acute myeloid leukemias. Inversion inv(8)(p11;q13) generates the KAT6A-NCOA2 oncogene, which consists of the N-terminal part of KAT6A and the C-terminal part of NCOA2/TIF2. KAT6A-NCOA2 binds to CREBBP and disrupts its function in transcription activation.

Function

[VDRA_DANRE] Nuclear hormone receptor. Transcription factor that mediates the action of vitamin D3 by controlling the expression of hormone sensitive genes. Regulates transcription of hormone sensitive genes via its association with the WINAC complex, a chromatin-remodeling complex. Plays a central role in calcium homeostasis.^[1] [NCOA2_HUMAN] Transcriptional coactivator for steroid receptors and nuclear receptors. Coactivator of the steroid binding domain (AF-2) but not of the modulating N-terminal domain (AF-1). Required with NCOA1 to control energy balance between white and brown adipose tissues.^[2]

Publication Abstract from PubMed

The vitamin D receptor (VDR), an endocrine nuclear receptor for 1alpha,25-dihydroxyvitamin D3, acts also as a bile acid sensor by binding lithocholic acid (LCA). The crystal structure of the zebrafish VDR ligand binding domain in complex with LCA and the SRC-2 coactivator peptide reveals the binding of two LCA molecules by VDR. One LCA binds to the canonical ligand-binding pocket, and the second one, which is not fully buried, is anchored to a site located on the VDR surface. Despite the low affinity of the alternative site, the binding of the second molecule promotes stabilization of the active receptor conformation. Biological activity assays, structural analysis, and molecular dynamics simulations indicate that the recognition of two ligand molecules is crucial for VDR agonism by LCA. The unique binding mode of LCA provides clues for the development of new chemical compounds that target alternative binding sites for therapeutic applications.

Structural insights into the molecular mechanism of vitamin d receptor activation by lithocholic Acid involving a new mode of ligand recognition.,Belorusova AY, Eberhardt J, Potier N, Stote RH, Dejaegere A, Rochel N J Med Chem. 2014 Jun 12;57(11):4710-9. doi: 10.1021/jm5002524. Epub 2014 May 21. PMID:24818857^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Ciesielski F, Rochel N, Moras D. Adaptability of the Vitamin D nuclear receptor to the synthetic ligand Gemini: remodelling the LBP with one side chain rotation. J Steroid Biochem Mol Biol. 2007 Mar;103(3-5):235-42. Epub 2007 Jan 10. PMID:17218092 doi:http://dx.doi.org/10.1016/j.jsbmb.2006.12.003
↑ Voegel JJ, Heine MJ, Tini M, Vivat V, Chambon P, Gronemeyer H. The coactivator TIF2 contains three nuclear receptor-binding motifs and mediates transactivation through CBP binding-dependent and -independent pathways. EMBO J. 1998 Jan 15;17(2):507-19. PMID:9430642 doi:10.1093/emboj/17.2.507
↑ Belorusova AY, Eberhardt J, Potier N, Stote RH, Dejaegere A, Rochel N. Structural insights into the molecular mechanism of vitamin d receptor activation by lithocholic Acid involving a new mode of ligand recognition. J Med Chem. 2014 Jun 12;57(11):4710-9. doi: 10.1021/jm5002524. Epub 2014 May 21. PMID:24818857 doi:http://dx.doi.org/10.1021/jm5002524

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4q0a"

@@ Line 3: / Line 3: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[4q0a]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4Q0A OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4Q0A FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=4OA:(3BETA,5BETA,14BETA,17ALPHA)-3-HYDROXYCHOLAN-24-OIC+ACID'>4OA</scene><br>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=4OA:(3BETA,5BETA,14BETA,17ALPHA)-3-HYDROXYCHOLAN-24-OIC+ACID'>4OA</scene></td></tr>
-<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2hc4|2hc4]], [[2hcd|2hcd]]</td></tr>
+<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2hc4|2hc4]], [[2hcd|2hcd]]</td></tr>
-<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4q0a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4q0a OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4q0a RCSB], [http://www.ebi.ac.uk/pdbsum/4q0a PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4q0a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4q0a OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4q0a RCSB], [http://www.ebi.ac.uk/pdbsum/4q0a PDBsum]</span></td></tr>
-<table>
+</table>
 == Disease ==
 [[http://www.uniprot.org/uniprot/NCOA2_HUMAN NCOA2_HUMAN]] Note=Chromosomal aberrations involving NCOA2 may be a cause of acute myeloid leukemias. Inversion inv(8)(p11;q13) generates the KAT6A-NCOA2 oncogene, which consists of the N-terminal part of KAT6A and the C-terminal part of NCOA2/TIF2. KAT6A-NCOA2 binds to CREBBP and disrupts its function in transcription activation.
@@ Line 23: / Line 23: @@
 __TOC__
 </StructureSection>
-[[Category: Belorusova, A.]]
+[[Category: Belorusova, A]]
-[[Category: Rochel, N.]]
+[[Category: Rochel, N]]
 [[Category: Alpha-helical sandwich]]
 [[Category: Calcitriol binding]]

4q0a

From Proteopedia

Revision as of 09:00, 5 January 2015

Vitamin D Receptor complex with lithocholic acid

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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