1xap

From Proteopedia

(Difference between revisions)

Revision as of 09:24, 2 January 2017

Structure of the ligand binding domain of the Retinoic Acid Receptor beta

Structural highlights

1xap is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[RARB_HUMAN] Receptor for retinoic acid. Retinoic acid receptors bind as heterodimers to their target response elements in response to their ligands, all-trans or 9-cis retinoic acid, and regulate gene expression in various biological processes. The RXR/RAR heterodimers bind to the retinoic acid response elements (RARE) composed of tandem 5'-AGGTCA-3' sites known as DR1-DR5. In the absence or presence of hormone ligand, acts mainly as an activator of gene expression due to weak binding to corepressors. In concert with RARG, required for skeletal growth, matrix homeostasis and growth plate function.^[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The crystal structure of the ligand-binding domain of RARbeta, a suspect tumour suppressor, reveals important features that distinguish it from the two other RAR isotypes. The most striking difference is an extra cavity allowing RARbeta to bind more bulky agonists. Accordingly, we identified a ligand that shows RARbeta selectivity with a 100-fold higher affinity to RARbeta than to alpha or gamma isotypes. The structural differences between the three RAR ligand-binding pockets revealed a rationale explaining how a single retinoid can be at the same time an RARalpha, gamma antagonist and an RARbeta agonist. In addition, we demonstrate how to generate an RARbeta antagonist by gradually modifying the bulkiness of a single substitution. Together, our results provide structural guidelines for the synthesis of RARbeta-selective agonists and antagonists, allowing for the first time to address pharmacologically the tumour suppressor role of RARbeta in vitro and in animal models.

Rational design of RAR-selective ligands revealed by RARbeta crystal stucture.,Germain P, Kammerer S, Perez E, Peluso-Iltis C, Tortolani D, Zusi FC, Starrett J, Lapointe P, Daris JP, Marinier A, de Lera AR, Rochel N, Gronemeyer H EMBO Rep. 2004 Sep;5(9):877-82. PMID:15319780^[2]

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

References

↑ Hauksdottir H, Farboud B, Privalsky ML. Retinoic acid receptors beta and gamma do not repress, but instead activate target gene transcription in both the absence and presence of hormone ligand. Mol Endocrinol. 2003 Mar;17(3):373-85. Epub 2002 Dec 23. PMID:12554770 doi:10.1210/me.2002-0340
↑ Germain P, Kammerer S, Perez E, Peluso-Iltis C, Tortolani D, Zusi FC, Starrett J, Lapointe P, Daris JP, Marinier A, de Lera AR, Rochel N, Gronemeyer H. Rational design of RAR-selective ligands revealed by RARbeta crystal stucture. EMBO Rep. 2004 Sep;5(9):877-82. PMID:15319780 doi:10.1038/sj.embor.7400235

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1xap"

@@ Line 1: / Line 1: @@
 ==Structure of the ligand binding domain of the Retinoic Acid Receptor beta==
 <StructureSection load='1xap' size='340' side='right' caption='[[1xap]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1xap]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XAP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1XAP FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1xap]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XAP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1XAP FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=TTB:4-[(1E)-2-(5,5,8,8-TETRAMETHYL-5,6,7,8-TETRAHYDRONAPHTHALEN-2-YL)PROP-1-ENYL]BENZOIC+ACID'>TTB</scene></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=1xap FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xap OCA], [http://pdbe.org/1xap PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1xap RCSB], [http://www.ebi.ac.uk/pdbsum/1xap 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=1xap FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xap OCA], [http://pdbe.org/1xap PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1xap RCSB], [http://www.ebi.ac.uk/pdbsum/1xap PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1xap ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 34: / Line 35: @@
 __TOC__
 </StructureSection>
-[[Category: Human]]
 [[Category: Daris, J P]]
 [[Category: Germain, P]]

1xap

From Proteopedia

Revision as of 09:24, 2 January 2017

Structure of the ligand binding domain of the Retinoic Acid Receptor beta

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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