6a5w

From Proteopedia

(Difference between revisions)

Current revision

FXR-LBD with HNC143 and SRC1

Structural highlights

6a5w is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.88Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

NR1H4_HUMAN Ligand-activated transcription factor. Receptor for bile acids such as chenodeoxycholic acid, lithocholic acid and deoxycholic acid. Represses the transcription of the cholesterol 7-alpha-hydroxylase gene (CYP7A1) through the induction of NR0B2 or FGF19 expression, via two distinct mechanisms. Activates the intestinal bile acid-binding protein (IBABP). Activates the transcription of bile salt export pump ABCB11 by directly recruiting histone methyltransferase CARM1 to this locus.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7] ^[8]

Publication Abstract from PubMed

Nuclear receptor farnesoid X receptor (FXR) functions as the major bile acid (BA) sensor coordinating cholesterol metabolism, lipid homeostasis and absorption of dietary fats and vitamins. Because of its central role in metabolism, FXR represents an important drug target to manage metabolic and other diseases, such as primary biliary cirrhosis and non-alcoholic steatohepatitis. FXR and nuclear receptor retinoid X receptor alpha (RXRalpha) form a heterodimer that controls the expression of numerous downstream genes. To date, the structural basis and functional consequences of the FXR/RXR heterodimer interaction have remained unclear. Herein, we present the crystal structures of the heterodimeric complex formed between the ligand-binding domains of human FXR and RXRalpha. We show that both FXR and RXR bind to the transcriptional coregulator steroid receptor coactivator 1 (SRC1) with higher affinity when they are part of the heterodimer complex than when they are in their respective monomeric states. Furthermore, structural comparisons of the FXR/RXRalpha heterodimers and the FXR monomers bound with different ligands indicated that both heterodimerization and ligand binding induce a conformational change in the C terminus of helix 11 in FXR that affects the stability of the coactivator binding surface and the coactivator binding in FXR. In summary, our findings shed light on the allosteric signal transduction in the FXR/RXR heterodimer, which may be utilized for future drug development targeting FXR.

Ligand binding and heterodimerization with retinoid X receptor alpha (RXRalpha) induce farnesoid X receptor (FXR) conformational changes affecting co-activator binding.,Wang N, Zou Q, Xu J, Zhang J, Liu J J Biol Chem. 2018 Oct 1. pii: RA118.004652. doi: 10.1074/jbc.RA118.004652. PMID:30275017^[9]

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

References

↑ Makishima M, Okamoto AY, Repa JJ, Tu H, Learned RM, Luk A, Hull MV, Lustig KD, Mangelsdorf DJ, Shan B. Identification of a nuclear receptor for bile acids. Science. 1999 May 21;284(5418):1362-5. PMID:10334992
↑ Parks DJ, Blanchard SG, Bledsoe RK, Chandra G, Consler TG, Kliewer SA, Stimmel JB, Willson TM, Zavacki AM, Moore DD, Lehmann JM. Bile acids: natural ligands for an orphan nuclear receptor. Science. 1999 May 21;284(5418):1365-8. PMID:10334993
↑ Holt JA, Luo G, Billin AN, Bisi J, McNeill YY, Kozarsky KF, Donahee M, Wang DY, Mansfield TA, Kliewer SA, Goodwin B, Jones SA. Definition of a novel growth factor-dependent signal cascade for the suppression of bile acid biosynthesis. Genes Dev. 2003 Jul 1;17(13):1581-91. Epub 2003 Jun 18. PMID:12815072 doi:10.1101/gad.1083503
↑ Ananthanarayanan M, Li S, Balasubramaniyan N, Suchy FJ, Walsh MJ. Ligand-dependent activation of the farnesoid X-receptor directs arginine methylation of histone H3 by CARM1. J Biol Chem. 2004 Dec 24;279(52):54348-57. Epub 2004 Oct 6. PMID:15471871 doi:M410021200
↑ Downes M, Verdecia MA, Roecker AJ, Hughes R, Hogenesch JB, Kast-Woelbern HR, Bowman ME, Ferrer JL, Anisfeld AM, Edwards PA, Rosenfeld JM, Alvarez JG, Noel JP, Nicolaou KC, Evans RM. A chemical, genetic, and structural analysis of the nuclear bile acid receptor FXR. Mol Cell. 2003 Apr;11(4):1079-92. PMID:12718892
↑ Akwabi-Ameyaw A, Bass JY, Caldwell RD, Caravella JA, Chen L, Creech KL, Deaton DN, Jones SA, Kaldor I, Liu Y, Madauss KP, Marr HB, McFadyen RB, Miller AB, Iii FN, Parks DJ, Spearing PK, Todd D, Williams SP, Wisely GB. Conformationally constrained farnesoid X receptor (FXR) agonists: Naphthoic acid-based analogs of GW 4064. Bioorg Med Chem Lett. 2008 Aug 1;18(15):4339-43. Epub 2008 Jun 28. PMID:18621523 doi:10.1016/j.bmcl.2008.06.073
↑ Bass JY, Caldwell RD, Caravella JA, Chen L, Creech KL, Deaton DN, Madauss KP, Marr HB, McFadyen RB, Miller AB, Parks DJ, Todd D, Williams SP, Wisely GB. Substituted isoxazole analogs of farnesoid X receptor (FXR) agonist GW4064. Bioorg Med Chem Lett. 2009 Jun 1;19(11):2969-73. Epub 2009 Apr 18. PMID:19410460 doi:10.1016/j.bmcl.2009.04.047
↑ Akwabi-Ameyaw A, Bass JY, Caldwell RD, Caravella JA, Chen L, Creech KL, Deaton DN, Madauss KP, Marr HB, McFadyen RB, Miller AB, Navas F 3rd, Parks DJ, Spearing PK, Todd D, Williams SP, Bruce Wisely G. FXR agonist activity of conformationally constrained analogs of GW 4064. Bioorg Med Chem Lett. 2009 Aug 15;19(16):4733-9. Epub 2009 Jun 21. PMID:19586769 doi:10.1016/j.bmcl.2009.06.062
↑ Wang N, Zou Q, Xu J, Zhang J, Liu J. Ligand binding and heterodimerization with retinoid X receptor alpha (RXRalpha) induce farnesoid X receptor (FXR) conformational changes affecting co-activator binding. J Biol Chem. 2018 Oct 1. pii: RA118.004652. doi: 10.1074/jbc.RA118.004652. PMID:30275017 doi:http://dx.doi.org/10.1074/jbc.RA118.004652

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/6a5w"

Categories: Homo sapiens | Large Structures | Liu J | Wang N

@@ Line 1: / Line 1: @@
 ==FXR-LBD with HNC143 and SRC1==
-<StructureSection load='6a5w' size='340' side='right' caption='[[6a5w]], [[Resolution|resolution]] 2.88&Aring;' scene=''>
+<StructureSection load='6a5w' size='340' side='right'caption='[[6a5w]], [[Resolution|resolution]] 2.88&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6a5w]] is a 4 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=6A5W OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6A5W FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6a5w]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6A5W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6A5W FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=9R0:2-[2-[[3-[2,6-bis(chloranyl)phenyl]-5-cyclopropyl-1,2-oxazol-4-yl]methoxy]-6-azaspiro[3.4]octan-6-yl]-1,3-benzothiazole-6-carboxylic+acid'>9R0</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.88&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">NR1H4, BAR, FXR, HRR1, RIP14 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=9R0:2-[2-[[3-[2,6-bis(chloranyl)phenyl]-5-cyclopropyl-1,2-oxazol-4-yl]methoxy]-6-azaspiro[3.4]octan-6-yl]-1,3-benzothiazole-6-carboxylic+acid'>9R0</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=6a5w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a5w OCA], [http://pdbe.org/6a5w PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6a5w RCSB], [http://www.ebi.ac.uk/pdbsum/6a5w PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6a5w ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6a5w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a5w OCA], [https://pdbe.org/6a5w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6a5w RCSB], [https://www.ebi.ac.uk/pdbsum/6a5w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6a5w ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/NR1H4_HUMAN NR1H4_HUMAN]] Ligand-activated transcription factor. Receptor for bile acids such as chenodeoxycholic acid, lithocholic acid and deoxycholic acid. Represses the transcription of the cholesterol 7-alpha-hydroxylase gene (CYP7A1) through the induction of NR0B2 or FGF19 expression, via two distinct mechanisms. Activates the intestinal bile acid-binding protein (IBABP). Activates the transcription of bile salt export pump ABCB11 by directly recruiting histone methyltransferase CARM1 to this locus.<ref>PMID:10334992</ref> <ref>PMID:10334993</ref> <ref>PMID:12815072</ref> <ref>PMID:15471871</ref> <ref>PMID:12718892</ref> <ref>PMID:18621523</ref> <ref>PMID:19410460</ref> <ref>PMID:19586769</ref>
+[https://www.uniprot.org/uniprot/NR1H4_HUMAN NR1H4_HUMAN] Ligand-activated transcription factor. Receptor for bile acids such as chenodeoxycholic acid, lithocholic acid and deoxycholic acid. Represses the transcription of the cholesterol 7-alpha-hydroxylase gene (CYP7A1) through the induction of NR0B2 or FGF19 expression, via two distinct mechanisms. Activates the intestinal bile acid-binding protein (IBABP). Activates the transcription of bile salt export pump ABCB11 by directly recruiting histone methyltransferase CARM1 to this locus.<ref>PMID:10334992</ref> <ref>PMID:10334993</ref> <ref>PMID:12815072</ref> <ref>PMID:15471871</ref> <ref>PMID:12718892</ref> <ref>PMID:18621523</ref> <ref>PMID:19410460</ref> <ref>PMID:19586769</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 19: / Line 19: @@
 </div>
 <div class="pdbe-citations 6a5w" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Bile acid receptor 3D structures|Bile acid receptor 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Human]]
+[[Category: Homo sapiens]]
-[[Category: Liu, J]]
+[[Category: Large Structures]]
-[[Category: Wang, N]]
+[[Category: Liu J]]
-[[Category: Agonist]]
+[[Category: Wang N]]
-[[Category: Coactivator]]
-[[Category: Complex]]
-[[Category: Nuclear receptor]]
-[[Category: Transcription]]

6a5w

From Proteopedia

Current revision

FXR-LBD with HNC143 and SRC1

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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