1m63

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[[Image:1m63.gif|left|200px]]
 
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==Crystal structure of calcineurin-cyclophilin-cyclosporin shows common but distinct recognition of immunophilin-drug complexes==
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The line below this paragraph, containing "STRUCTURE_1m63", creates the "Structure Box" on the page.
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<StructureSection load='1m63' size='340' side='right'caption='[[1m63]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1m63]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Tolypocladium_inflatum Tolypocladium inflatum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M63 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1M63 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.8&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ABA:ALPHA-AMINOBUTYRIC+ACID'>ABA</scene>, <scene name='pdbligand=BMT:4-METHYL-4-[(E)-2-BUTENYL]-4,N-METHYL-THREONINE'>BMT</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=DAL:D-ALANINE'>DAL</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=MLE:N-METHYLLEUCINE'>MLE</scene>, <scene name='pdbligand=MVA:N-METHYLVALINE'>MVA</scene>, <scene name='pdbligand=SAR:SARCOSINE'>SAR</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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{{STRUCTURE_1m63| PDB=1m63 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1m63 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m63 OCA], [https://pdbe.org/1m63 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1m63 RCSB], [https://www.ebi.ac.uk/pdbsum/1m63 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1m63 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PP2BA_HUMAN PP2BA_HUMAN] Calcium-dependent, calmodulin-stimulated protein phosphatase. This subunit may have a role in the calmodulin activation of calcineurin. Dephosphorylates DNM1L, HSPB1 and SSH1.<ref>PMID:15671020</ref> <ref>PMID:18838687</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/m6/1m63_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/main_output.php?pdb_ID=1m63 ConSurf].
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<div style="clear:both"></div>
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'''Crystal structure of calcineurin-cyclophilin-cyclosporin shows common but distinct recognition of immunophilin-drug complexes'''
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==See Also==
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*[[Calcineurin 3D structures|Calcineurin 3D structures]]
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*[[Cyclophilin 3D structures|Cyclophilin 3D structures]]
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==Overview==
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== References ==
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Calcineurin, a Ca2+/calmodulin-dependent protein phosphatase, is the common target for two immunophilin-immunosuppressant complexes, cyclophilin A-cyclosporin A (CyPA-CsA) and FKBP-FK506. How the two structurally distinct immunophilin-drug complexes bind the same target has remained unknown. We report the crystal structure of calcineurin (CN) in complex with CyPA-CsA at 2.8-A resolution. The CyPA-CsA complex binds to a composite surface formed by the catalytic and regulatory subunits of CN, where the complex of FK506 and its binding protein FKBP also binds. While the majority of the CN residues involved in the binding are common for both immunophilin-immunosuppressant complexes, a significant number of the residues are distinct. Unlike FKBP-FK506, CyPA-CsA interacts with Arg-122 at the active site of CN, implying direct involvement of CyPA-CsA in the regulation of CN catalysis. The simultaneous interaction of CyPA with both the composite surface and the active site of CN suggests that the composite surface may serve as a substrate recognition site responsible for the narrow substrate specificity of CN. The comparison of CyPA-CsA-CN with FKBP-FK506-CN significantly contributes to understanding the molecular basis of regulation of CN activity by the immunophilin-immunosuppressant.
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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1M63 is a [[Protein complex]] structure of sequences 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=1M63 OCA].
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==Reference==
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Crystal structure of calcineurin-cyclophilin-cyclosporin shows common but distinct recognition of immunophilin-drug complexes., Huai Q, Kim HY, Liu Y, Zhao Y, Mondragon A, Liu JO, Ke H, Proc Natl Acad Sci U S A. 2002 Sep 17;99(19):12037-42. Epub 2002 Sep 6. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12218175 12218175]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Phosphoprotein phosphatase]]
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[[Category: Large Structures]]
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[[Category: Protein complex]]
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[[Category: Tolypocladium inflatum]]
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[[Category: Huai, Q.]]
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[[Category: Huai Q]]
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[[Category: Ke, H.]]
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[[Category: Ke H]]
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[[Category: Kim, H Y.]]
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[[Category: Kim H-Y]]
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[[Category: Liu, J O.]]
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[[Category: Liu JO]]
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[[Category: Liu, Y.]]
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[[Category: Liu Y]]
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[[Category: Mondragon, A.]]
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[[Category: Mondragon A]]
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[[Category: Zhao, Y.]]
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[[Category: Zhao Y]]
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[[Category: Calcineurin]]
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[[Category: Crystal structure]]
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[[Category: Immunophilin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 00:40:52 2008''
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Current revision

Crystal structure of calcineurin-cyclophilin-cyclosporin shows common but distinct recognition of immunophilin-drug complexes

PDB ID 1m63

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