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| | <StructureSection load='1nmk' size='340' side='right'caption='[[1nmk]], [[Resolution|resolution]] 2.10Å' scene=''> | | <StructureSection load='1nmk' size='340' side='right'caption='[[1nmk]], [[Resolution|resolution]] 2.10Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1nmk]] is a 2 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=1NMK OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1NMK FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1nmk]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NMK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NMK FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SFM:(13E,15E)-(3S,6S,9R,10R,11S,12S,18S,21S)-10,12-DIHYDROXY-3-(3-HYDROXYBEN-ZYL)-18-((E)-3-HYDROXY-1-METHYLPROPENYL)-6-ISOPROPYL-11-METHYL-9-(3-OXO-BUTYL)-19-OXA-1,4,7,25-TETRAAZA-BICYCLO[19.3.1]PENTACOSA-13,15-DIENE-2,5,8,20-TETRAONE'>SFM</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PPIA OR CYPA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SFM:(13E,15E)-(3S,6S,9R,10R,11S,12S,18S,21S)-10,12-DIHYDROXY-3-(3-HYDROXYBEN-ZYL)-18-((E)-3-HYDROXY-1-METHYLPROPENYL)-6-ISOPROPYL-11-METHYL-9-(3-OXO-BUTYL)-19-OXA-1,4,7,25-TETRAAZA-BICYCLO[19.3.1]PENTACOSA-13,15-DIENE-2,5,8,20-TETRAONE'>SFM</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peptidylprolyl_isomerase Peptidylprolyl isomerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=5.2.1.8 5.2.1.8] </span></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=1nmk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nmk OCA], [https://pdbe.org/1nmk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nmk RCSB], [https://www.ebi.ac.uk/pdbsum/1nmk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nmk ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1nmk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nmk OCA], [http://pdbe.org/1nmk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1nmk RCSB], [http://www.ebi.ac.uk/pdbsum/1nmk PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1nmk ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://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. | + | [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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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Peptidylprolyl isomerase]]
| + | [[Category: Kallen J]] |
| - | [[Category: Kallen, J]] | + | [[Category: Sedrani R]] |
| - | [[Category: Sedrani, R]] | + | [[Category: Wagner J]] |
| - | [[Category: Wagner, J]] | + | |
| - | [[Category: Beta sandwich]]
| + | |
| - | [[Category: Cyclophilin-ligand complex]]
| + | |
| - | [[Category: Cyclosporin]]
| + | |
| - | [[Category: Isomerase]]
| + | |
| - | [[Category: Rotamase]]
| + | |
| Structural highlights
Function
PPIA_HUMAN PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Sanglifehrin A (SFA) is a novel immunosuppressive natural product isolated from Streptomyces sp. A92-308110. SFA has a very strong affinity for cyclophilin A (IC(50) = 6.9 +/- 0.9 nM) but is structurally different from cyclosporin A (CsA) and exerts its immunosuppressive activity via a novel mechanism. SFA has a complex molecular structure consisting of a 22-membered macrocycle, bearing in position 23 a nine-carbon tether terminated by a highly substituted spirobicyclic moiety. Selective oxidative cleavage of the C(26)=C(27) exocyclic double bond affords the spirolactam containing fragment 1 and macrolide 2. The affinity of 2 for cyclophilin (IC(50) = 29 +/- 2.1 nM) is essentially identical to SFA, which indicates that the interaction between SFA and cyclophilin A is mediated exclusively by the macrocyclic portion of the molecule. This observation was confirmed by the X-ray crystal structure resolved at 2.1 A of cyclophilin A complexed to macrolide 16, a close analogue of 2. The X-ray crystal structure showed that macrolide 16 binds to the same deep hydrophobic pocket of cyclophilin A as CsA. Additional valuable details of the structure-activity relationship were obtained by two different chemical approaches: (1) degradation work on macrolide 2 or (2) synthesis of a library of macrolide analogues using the ring-closing metathesis reaction as the key step. Altogether, it appears that the complex macrocyclic fragment of SFA is a highly optimized combination of multiple functionalities including an (E,E)-diene, a short polypropionate fragment, and an unusual tripeptide unit, which together provide an extremely strong affinity for cyclophilin A.
Sanglifehrin-cyclophilin interaction: degradation work, synthetic macrocyclic analogues, X-ray crystal structure, and binding data.,Sedrani R, Kallen J, Martin Cabrejas LM, Papageorgiou CD, Senia F, Rohrbach S, Wagner D, Thai B, Jutzi Eme AM, France J, Oberer L, Rihs G, Zenke G, Wagner J J Am Chem Soc. 2003 Apr 2;125(13):3849-59. PMID:12656618[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Sedrani R, Kallen J, Martin Cabrejas LM, Papageorgiou CD, Senia F, Rohrbach S, Wagner D, Thai B, Jutzi Eme AM, France J, Oberer L, Rihs G, Zenke G, Wagner J. Sanglifehrin-cyclophilin interaction: degradation work, synthetic macrocyclic analogues, X-ray crystal structure, and binding data. J Am Chem Soc. 2003 Apr 2;125(13):3849-59. PMID:12656618 doi:10.1021/ja021327y
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