1m9d
From Proteopedia
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==X-ray crystal structure of Cyclophilin A/HIV-1 CA N-terminal domain (1-146) O-type chimera Complex.== | ==X-ray crystal structure of Cyclophilin A/HIV-1 CA N-terminal domain (1-146) O-type chimera Complex.== | ||
| - | <StructureSection load='1m9d' size='340' side='right' caption='[[1m9d]], [[Resolution|resolution]] 1.90Å' scene=''> | + | <StructureSection load='1m9d' size='340' side='right'caption='[[1m9d]], [[Resolution|resolution]] 1.90Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1m9d]] is a 4 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[1m9d]] 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=1M9D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1M9D FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9Å</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=1m9d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m9d OCA], [https://pdbe.org/1m9d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1m9d RCSB], [https://www.ebi.ac.uk/pdbsum/1m9d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1m9d ProSAT]</span></td></tr> | |
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| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | |
</table> | </table> | ||
== Function == | == Function == | ||
| - | [ | + | [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. |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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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=1m9d ConSurf]. | </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=1m9d ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | 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. | ||
| - | + | ==See Also== | |
| - | + | *[[Cyclophilin 3D structures|Cyclophilin 3D structures]] | |
| - | + | *[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]] | |
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| - | [[Category: | + | [[Category: Human immunodeficiency virus 1]] |
| - | [[Category: Hill | + | [[Category: Large Structures]] |
| - | [[Category: Howard | + | [[Category: Hill CP]] |
| - | [[Category: Li | + | [[Category: Howard BR]] |
| - | [[Category: Sundquist | + | [[Category: Li S]] |
| - | [[Category: Vajdos | + | [[Category: Sundquist WI]] |
| - | + | [[Category: Vajdos FF]] | |
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Current revision
X-ray crystal structure of Cyclophilin A/HIV-1 CA N-terminal domain (1-146) O-type chimera Complex.
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