4p6x

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{{STRUCTURE_4p6x| PDB=4p6x | SCENE= }}
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==Crystal Structure of cortisol-bound glucocorticoid receptor ligand binding domain==
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===Crystal Structure of cortisol-bound glucocorticoid receptor ligand binding domain===
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<StructureSection load='4p6x' size='340' side='right' caption='[[4p6x]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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==Disease==
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<table><tr><td colspan='2'>[[4p6x]] is a 12 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=4P6X OCA]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HCY:(11ALPHA,14BETA)-11,17,21-TRIHYDROXYPREGN-4-ENE-3,20-DIONE'>HCY</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4p6w|4p6w]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">NR3C1, GRL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span></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=4p6x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4p6x OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4p6x RCSB], [http://www.ebi.ac.uk/pdbsum/4p6x PDBsum]</span></td></tr>
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<table>
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== Disease ==
[[http://www.uniprot.org/uniprot/GCR_HUMAN GCR_HUMAN]] Defects in NR3C1 are a cause of glucocorticoid resistance (GCRES) [MIM:[http://omim.org/entry/138040 138040]]; also known as cortisol resistance. It is a hypertensive, hyperandrogenic disorder characterized by increased serum cortisol concentrations. Inheritance is autosomal dominant.<ref>PMID:12050230</ref> <ref>PMID:1704018</ref> <ref>PMID:7683692</ref> <ref>PMID:11589680</ref> <ref>PMID:11701741</ref> [[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.
[[http://www.uniprot.org/uniprot/GCR_HUMAN GCR_HUMAN]] Defects in NR3C1 are a cause of glucocorticoid resistance (GCRES) [MIM:[http://omim.org/entry/138040 138040]]; also known as cortisol resistance. It is a hypertensive, hyperandrogenic disorder characterized by increased serum cortisol concentrations. Inheritance is autosomal dominant.<ref>PMID:12050230</ref> <ref>PMID:1704018</ref> <ref>PMID:7683692</ref> <ref>PMID:11589680</ref> <ref>PMID:11701741</ref> [[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.
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== Function ==
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==Function==
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[[http://www.uniprot.org/uniprot/GCR_HUMAN GCR_HUMAN]] Receptor for glucocorticoids (GC). Has a dual mode of action: as a transcription factor that binds to glucocorticoid response elements (GRE), both for nuclear and mitochondrial DNA, and as a modulator of other transcription factors. Affects inflammatory responses, cellular proliferation and differentiation in target tissues. Could act as a coactivator for STAT5-dependent transcription upon growth hormone (GH) stimulation and could reveal an essential role of hepatic GR in the control of body growth. Involved in chromatin remodeling. Plays a significant role in transactivation.<ref>PMID:21664385</ref> [[http://www.uniprot.org/uniprot/NCOA2_HUMAN 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.<ref>PMID:9430642</ref>
[[http://www.uniprot.org/uniprot/GCR_HUMAN GCR_HUMAN]] Receptor for glucocorticoids (GC). Has a dual mode of action: as a transcription factor that binds to glucocorticoid response elements (GRE), both for nuclear and mitochondrial DNA, and as a modulator of other transcription factors. Affects inflammatory responses, cellular proliferation and differentiation in target tissues. Could act as a coactivator for STAT5-dependent transcription upon growth hormone (GH) stimulation and could reveal an essential role of hepatic GR in the control of body growth. Involved in chromatin remodeling. Plays a significant role in transactivation.<ref>PMID:21664385</ref> [[http://www.uniprot.org/uniprot/NCOA2_HUMAN 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.<ref>PMID:9430642</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The evolution of glucocorticoid drugs was driven by the demand of lowering the unwanted side effects, while keeping the beneficial anti-inflammatory effects. Potency is an important aspect of this evolution as many undesirable side effects are associated with use of high-dose glucocorticoids. The side effects can be minimized by highly potent glucocorticoids that achieve the same treatment effects at lower doses. This demand propelled the continuous development of synthetic glucocorticoids with increased potencies, but the structural basis of their potencies is poorly understood. To determine the mechanisms underlying potency, we solved the X-ray structures of the glucocorticoid receptor (GR) ligand-binding domain (LBD) bound to its endogenous ligand, cortisol, which has relatively low potency, and a highly potent synthetic glucocorticoid, mometasone furoate (MF). The cortisol-bound GR LBD revealed that the flexibility of the C1-C2 single bond in the steroid A ring is primarily responsible for the low affinity of cortisol to GR. In contrast, we demonstrate that the very high potency of MF is achieved by its C-17alpha furoate group completely filling the ligand-binding pocket, thus providing additional anchor contacts for high-affinity binding. A single amino acid in the ligand-binding pocket, Q642, plays a discriminating role in ligand potency between MF and cortisol. Structure-based design led to synthesis of several novel glucocorticoids with much improved potency and efficacy. Together, these results reveal key structural mechanisms of glucocorticoid potency and provide a rational basis for developing novel highly potent glucocorticoids.Cell Research advance online publication 25 April 2014; doi:10.1038/cr.2014.52.
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==About this Structure==
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Structures and mechanism for the design of highly potent glucocorticoids.,He Y, Yi W, Suino-Powell K, Zhou XE, Tolbert WD, Tang X, Yang J, Yang H, Shi J, Hou L, Jiang H, Melcher K, Xu HE Cell Res. 2014 Apr 25. doi: 10.1038/cr.2014.52. PMID:24763108<ref>PMID:24763108</ref>
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[[4p6x]] is a 12 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4P6X OCA].
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==Reference==
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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<references group="xtra"/><references/>
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</div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Human]]
[[Category: He, Y.]]
[[Category: He, Y.]]
[[Category: Melcher, K.]]
[[Category: Melcher, K.]]

Revision as of 07:08, 7 May 2014

Crystal Structure of cortisol-bound glucocorticoid receptor ligand binding domain

4p6x, resolution 2.50Å

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