1m9c

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[[Image:1m9c.gif|left|200px]]
 
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==X-ray crystal structure of Cyclophilin A/HIV-1 CA N-terminal domain (1-146) M-type Complex.==
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The line below this paragraph, containing "STRUCTURE_1m9c", creates the "Structure Box" on the page.
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<StructureSection load='1m9c' size='340' side='right'caption='[[1m9c]], [[Resolution|resolution]] 2.00&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'>[[1m9c]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M9C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1M9C FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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&#8491;</td></tr>
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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=1m9c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m9c OCA], [https://pdbe.org/1m9c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1m9c RCSB], [https://www.ebi.ac.uk/pdbsum/1m9c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1m9c ProSAT]</span></td></tr>
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{{STRUCTURE_1m9c| PDB=1m9c | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PPIA_HUMAN PPIA_HUMAN] PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides.
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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/m9/1m9c_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=1m9c ConSurf].
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<div style="clear:both"></div>
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'''X-ray crystal structure of Cyclophilin A/HIV-1 CA N-terminal domain (1-146) M-type Complex.'''
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==See Also==
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*[[Cyclophilin 3D structures|Cyclophilin 3D structures]]
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*[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]]
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==Overview==
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__TOC__
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Cyclophilins constitute a ubiquitous protein family whose functions include protein folding, transport and signaling. They possess both sequence-specific binding and proline cis-trans isomerase activities, as exemplified by the interaction between cyclophilin A (CypA) and the HIV-1 CA protein. Here, we report crystal structures of CypA in complex with HIV-1 CA protein variants that bind preferentially with the substrate proline residue in either the cis or the trans conformation. Cis- and trans-Pro substrates are accommodated within the enzyme active site by rearrangement of their N-terminal residues and with minimal distortions in the path of the main chain. CypA Arg55 guanidinium group probably facilitates catalysis by anchoring the substrate proline oxygen and stabilizing sp3 hybridization of the proline nitrogen in the transition state.
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</StructureSection>
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==About this Structure==
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1M9C is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M9C OCA].
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==Reference==
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Structural insights into the catalytic mechanism of cyclophilin A., Howard BR, Vajdos FF, Li S, Sundquist WI, Hill CP, Nat Struct Biol. 2003 Jun;10(6):475-81. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12730686 12730686]
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Human immunodeficiency virus 1]]
[[Category: Human immunodeficiency virus 1]]
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[[Category: Peptidylprolyl isomerase]]
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[[Category: Large Structures]]
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[[Category: Protein complex]]
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[[Category: Hill CP]]
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[[Category: Hill, C P.]]
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[[Category: Howard BR]]
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[[Category: Howard, B R.]]
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[[Category: Li S]]
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[[Category: Li, S.]]
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[[Category: Sundquist WI]]
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[[Category: Sundquist, W I.]]
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[[Category: Vajdos FF]]
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[[Category: Vajdos, F F.]]
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[[Category: Capsid]]
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[[Category: Cyclophilin some]]
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[[Category: Hiv-1]]
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[[Category: Isomerase]]
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[[Category: Rotamase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 00:47:15 2008''
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Current revision

X-ray crystal structure of Cyclophilin A/HIV-1 CA N-terminal domain (1-146) M-type Complex.

PDB ID 1m9c

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