2aa7

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{{STRUCTURE_2aa7| PDB=2aa7 | SCENE= }}
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==Mineralocorticoid Receptor with Bound Deoxycorticosterone==
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===Mineralocorticoid Receptor with Bound Deoxycorticosterone===
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<StructureSection load='2aa7' size='340' side='right' caption='[[2aa7]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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{{ABSTRACT_PUBMED_15967794}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2aa7]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AA7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2AA7 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=1CA:DESOXYCORTICOSTERONE'>1CA</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2aa2|2aa2]], [[2aa5|2aa5]], [[2aa6|2aa6]], [[2aax|2aax]], [[2ab2|2ab2]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">NR3C2, MCR, MLR ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<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=2aa7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2aa7 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2aa7 RCSB], [http://www.ebi.ac.uk/pdbsum/2aa7 PDBsum]</span></td></tr>
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<table>
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== Disease ==
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[[http://www.uniprot.org/uniprot/MCR_HUMAN MCR_HUMAN]] Defects in NR3C2 are a cause of pseudohypoaldosteronism 1, autosomal dominant (PHA1A) [MIM:[http://omim.org/entry/177735 177735]]. A salt wasting disease resulting from target organ unresponsiveness to mineralocorticoids. PHA1A is a mild form characterized by target organ defects confined to kidney. Patients may present with neonatal renal salt wasting with hyperkalaemic acidosis despite high aldosterone levels. These patients improve with age and usually become asymptomatic without treatment.<ref>PMID:9662404</ref> <ref>PMID:11134129</ref> <ref>PMID:12788847</ref> <ref>PMID:16954160</ref> <ref>PMID:16972228</ref> Defects in NR3C2 are a cause of early-onset hypertension with severe exacerbation in pregnancy (EOHSEP) [MIM:[http://omim.org/entry/605115 605115]]. Inheritance is autosomal dominant. The disease is characterized by the onset of severe hypertension before the age of 20, and by suppression of aldosterone secretion.<ref>PMID:9662404</ref> <ref>PMID:15967794</ref> <ref>PMID:15908963</ref> <ref>PMID:10884226</ref>
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== Function ==
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[[http://www.uniprot.org/uniprot/MCR_HUMAN MCR_HUMAN]] Receptor for both mineralocorticoids (MC) such as aldosterone and glucocorticoids (GC) such as corticosterone or cortisol. Binds to mineralocorticoid response elements (MRE) and transactivates target genes. The effect of MC is to increase ion and water transport and thus raise extracellular fluid volume and blood pressure and lower potassium levels.<ref>PMID:3037703</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/aa/2aa7_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Ligand binding is the first step in hormone regulation of mineralocorticoid receptor (MR) activity. Here, we report multiple crystal structures of MR (NR3C2) bound to both agonist and antagonists. These structures combined with mutagenesis studies reveal that maximal receptor activation involves an intricate ligand-mediated hydrogen bond network with Asn770 which serves dual roles: stabilization of the loop preceding the C-terminal activation function-2 helix and direct contact with the hormone ligand. In addition, most activating ligands hydrogen bond to Thr945 on helix 10. Structural characterization of the naturally occurring S810L mutant explains how stabilization of a helix 3/helix 5 interaction can circumvent the requirement for this hydrogen bond network. Taken together, these results explain the potency of MR activation by aldosterone, the weak activation induced by progesterone and the antihypertensive agent spironolactone, and the binding selectivity of cortisol over cortisone.
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==Disease==
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A ligand-mediated hydrogen bond network required for the activation of the mineralocorticoid receptor.,Bledsoe RK, Madauss KP, Holt JA, Apolito CJ, Lambert MH, Pearce KH, Stanley TB, Stewart EL, Trump RP, Willson TM, Williams SP J Biol Chem. 2005 Sep 2;280(35):31283-93. Epub 2005 Jun 20. PMID:15967794<ref>PMID:15967794</ref>
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[[http://www.uniprot.org/uniprot/MCR_HUMAN MCR_HUMAN]] Defects in NR3C2 are a cause of pseudohypoaldosteronism 1, autosomal dominant (PHA1A) [MIM:[http://omim.org/entry/177735 177735]]. A salt wasting disease resulting from target organ unresponsiveness to mineralocorticoids. PHA1A is a mild form characterized by target organ defects confined to kidney. Patients may present with neonatal renal salt wasting with hyperkalaemic acidosis despite high aldosterone levels. These patients improve with age and usually become asymptomatic without treatment.<ref>PMID:9662404</ref><ref>PMID:11134129</ref><ref>PMID:12788847</ref><ref>PMID:16954160</ref><ref>PMID:16972228</ref> Defects in NR3C2 are a cause of early-onset hypertension with severe exacerbation in pregnancy (EOHSEP) [MIM:[http://omim.org/entry/605115 605115]]. Inheritance is autosomal dominant. The disease is characterized by the onset of severe hypertension before the age of 20, and by suppression of aldosterone secretion.<ref>PMID:9662404</ref><ref>PMID:15967794</ref><ref>PMID:15908963</ref><ref>PMID:10884226</ref>
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==Function==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[http://www.uniprot.org/uniprot/MCR_HUMAN MCR_HUMAN]] Receptor for both mineralocorticoids (MC) such as aldosterone and glucocorticoids (GC) such as corticosterone or cortisol. Binds to mineralocorticoid response elements (MRE) and transactivates target genes. The effect of MC is to increase ion and water transport and thus raise extracellular fluid volume and blood pressure and lower potassium levels.<ref>PMID:3037703</ref>
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</div>
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== References ==
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==About this Structure==
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<references/>
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[[2aa7]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AA7 OCA].
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__TOC__
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:015967794</ref><references group="xtra"/><references/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Apolito, C J.]]
[[Category: Apolito, C J.]]

Revision as of 02:34, 30 September 2014

Mineralocorticoid Receptor with Bound Deoxycorticosterone

2aa7, resolution 2.20Å

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