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| - | [[Image:2x25.jpg|left|200px|thumb|Crystal Structure of human Cyclophilin-A, [[2x25]]]]
| + | <StructureSection load='2x2c' size='350' side='right' caption='Human Cyclophilin-A (rust, olive, turquois, dark green, khaki) complex with cyclosporin A (green, cyan, aqua, neon green, blue) (PDB entry [[2x2c]])' scene='41/415818/Cv/1'> |
| - | {{STRUCTURE_2x25| PDB=2x25 | SIZE=400| SCENE= |right|CAPTION=human Cyclophilin-A with acetyllysine, [[2x25]] }}
| + | == Function == |
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| | + | [[Cyclophilin]] (Cyp) binds cyclosporin. They are peptidylprolyl isomerases which catalyze the isomerisation of proline. The '''Cyp-A/cyclosporin A''' complex inhibits organ rejection. '''Cyp-D''' is a component of the mitochondria permeability pore. Rotamase such as FKBP is a prokaryotic Cyp which is not inhibited by cyclosporin but by FK-506 – an immunosuppressive drug. <ref>PMID:14731520</ref> See also [[Isomerases]]. |
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| | + | == Relevance == |
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| | + | Cyp-A has a key role in immunosuppression and viral infection<ref>PMID:22814107</ref>. Cyp-A is the target of the immunosuppressant cyclosporin A whose binding leads to the suppression of the T-cell mediated immune response. Cyp-A is required for effective HIV-1 replication in host cells<ref>PMID:15596813</ref>. |
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| | + | == Structural highlights == |
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| - | | + | <scene name='41/415818/Cv/2'>Cyp-A undergoes post-translational acetylation of Lys125</scene>. The acetylation modulates key functions of Cyp-A activity.<ref>PMID:20364129</ref> |
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| - | [[Cyclophilin]] (Cyp) binds cyclosporin. They are peptidylprolyl isomerases which catalyze the isomerisation of proline. The Cyp-A/cyclosporin A complex inhibits organ rejection. Cyp-D is a component of the mitochondria permeability pore. Rotamase such as FKBP is a prokaryotic Cyp which is not inhibited by cyclosporin but by FK-506 – an immunosuppressive drug. The images at the left and at the right correspond to one representative Cyclophilin, ''i.e.'' crystal structure of human Cyclophilin A ([[2x25]]).
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| - | {{TOC limit|limit=2}}
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| | == 3D Structures of Cyclophilin == | | == 3D Structures of Cyclophilin == |
| | + | [[Cyclophilin 3D structures]] |
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| - | Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}}
| + | </StructureSection> |
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| - | === Cyclophilin-A ===
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| - | [[2x25]], [[2x2a]], [[3k0m]], [[3k0n]], [[1w8l]], [[1w8m]], [[1w8v]], [[1rmh]], [[2cpl]] – hCyp-A – human<br />
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| - | [[1oca]] – hCyp-A - NMR<br />
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| - | [[3k0o]], [[3k0p]], [[3k0q]], [[3k0r]], [[2alf]] – hCyp-A (mutant)<br />
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| - | [[2a2c]], [[1cwa]], [[1cwb]], [[1cwc]] – hCyp-A+cyclosporin A<br />
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| - | [[3cys]] - hCyp-A+cyclosporin A - NMR<br />
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| - | [[1cwj]], [[1bck]], [[1cwi]], [[1cwo]], [[1cwf]], [[1cwh]], [[1cwk]], [[1cwl]], [[1cwm]], [[1mik]] - hCyp-A+cyclosporin A derivative<br />
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| - | [[2rma]], [[2rmb]] - hCyp-A+cyclosporin A+cyclosporin A derivative<br />
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| - | [[1mf8]], [[1m63]] - hCyp-A+cyclosporin A+ calcineurin subunits A,B<br />
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| - | [[3odi]], [[3odl]] – hCyp-A+voclosporin<br />
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| - | [[2x2d]], [[1m9c]], [[1m9d]], [[1m9e]], [[1m9f]], [[1m9x]], [[1m9y]], [[1awq]], [[1awr]], [[1aws]], [[1awt]], [[1awu]], [[1awv]], [[1ak4]], [[1fgl]] - hCyp-A+HIV-1 N-terminal capsid domain<br />
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| - | [[1zkf]] – hCyp-A+suc-AGPF-pNA<br />
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| - | [[1ynd]], [[1nmk]] – hCyp-A+ sanglifehrin<br />
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| - | [[2cyh]], [[3cyh]], [[4cyh]], [[5cyh]] - hCyp-A+dipeptide<br />
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| - | [[1vbs]], [[1vbt]] – hCyp-A+tetrapeptide<br />
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| - | [[1vdn]] – yCyp-A+peptidyl coumarin – yeast<br />
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| - | [[1ist]] – yCyp-A<br />
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| - | [[1w74]] – Cyp-A – ''Mycobacterium tuberculosis''<br />
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| - | [[1lop]] - EcCyp-A+peptidyl nitroanilide - ''Escherichia coli''<br />
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| - | [[1csa]] – EcCyp-A+ cyclosporin A – NMR<br />
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| - | [[2xgy]] – Cyp-A+RELIK capsid N-terminal - rabbit<br />
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| - | [[3o7t]] – NpCyp-A – ''Noniliophthora perniciosa''<br />
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| - | [[3pmp]] - NpCyp-A + cyclosporin A
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| - | === Cyclophilin-B ===
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| - | [[3ich]] – hCyp-B<br />
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| - | [[3ici]] - hCyp-B+calmegin fragment<br />
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| - | [[1v9t]] – EcCyp-B+peptidyl nitroanilide <br />
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| - | [[1vai]] - EcCyp-B+peptidyl coumarin<br />
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| - | [[1cyn]] – hCyp-B +cyclosporin A derivative<br />
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| - | [[1j2a]] – EcCyp-B (mutant)<br />
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| - | === Cyclophilin-C ===
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| - | [[2esl]] - hCyp-C+cyclosporin A<br />
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| - | [[2rmc]] - Cyp-C+cyclosporin A – mouse<br />
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| - | === Cyclophilin-D ===
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| - | [[2bit]], [[3qyu]] – hCyp-D<br />
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| - | [[2viu]] – hCyp-D+DMSO<br />
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| - | [[2z6w]] - hCyp-D+cyclosporin A<br />
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| - | === Cyclophilin-E ===
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| - | [[2kyx]], [[1zmf]] – hCyp-E PPIASE domain<br />
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| - | [[2r99]] - hCyp-E ABH-like domain<br />
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| - | [[2cqb]] – hCyp-E RNA recognition motif<br />
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| - | [[2ck1]], [[2cmt]] – Cyp-E – ''Schistosoma mansoni''<br />
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| - | [[2kyx]] – hCyp-E RRM domain – NMR<br />
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| - | [[3lpy]], [[3mdf]] - hCyp-E RRM domain<br />
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| - | === Cyclophilin-G ===
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| - | [[2wfi]], [[2gw2]] - hCyp-G PPIASE domain<br />
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| - | [[2wfj]] - hCyp-G PPIASE domain+cyclosporin A<br />
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| - | === Cyclophilin-H ===
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| - | [[1mzw]] – hCyp-H+peptide<br />
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| - | === Cyclophilin-J ===
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| - | [[2ok3]], [[1xyh]] - hCyp-J<br />
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| - | [[2oju]] - hCyp-J+cyclosporin A<br />
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| - | === Cyclophilin-3 ===
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| - | [[2igv]], [[2igw]], [[1e8k]] – CeCyp-3+dipeptide – ''Caenorhabditis elegans''<br />
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| - | [[1dyw]] - CeCyp-3<br />
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| - | [[1e3b]] – CeCyp-3+AUP(ET)3<br />
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| - | === Cyclophilin-5 ===
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| - | [[1h0p]] – CeCyp-5 (mutant) <br />
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| - | === Cyclophilin-40===
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| - | [[1ihg]], [[1iip]] – Cyp-40 – bovine<br />
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| - | === Cyclophilin ===
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| - | [[3bo7]] - TgCyp+cyclosporin A - ''Toxoplasma gondii''<br />
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| - | [[2nul]] – EcCyp<br />
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| - | [[1clh]] – EcCyp – NMR<br />
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| - | [[1qoi]] – hCyp SNUCYP-20<br />
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| - | [[3k2c]] – Cyp – ''Encephalitozoon cuniculi''<br />
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| - | [[3eov]] - LdCyp+cyclosporin A – ''Leishmania donovani''<br />
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| - | [[3bt8]] – LdCyp<br />
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| - | [[2haq]] – LdCyp-A<br />
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| - | [[2hqj]] – Cyp – ''Leishmania major''<br />
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| - | [[3bkp]] – TgCyp<br />
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| - | [[2cfe]] – Cyp – ''Malassezia sympodialis''<br />
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| - | [[2c3b]] – Cyp – ''Aspergillus fumigatus''<br />
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| - | [[1z81]] – Cyp – ''Plasmodium Yoelli''<br />
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| - | [[1qng]] – PfCyp+cyclosporin A – ''Plasmodium falciparum''<br />
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| - | [[1qnh]] – PfCyp (mutant)+cyclosporin A<br />
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| - | [[1xo7]] – TcCyp – ''Trypanosoma cruzi''<br />
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| - | [[1xq7]] - TcCyp+cyclosporin A<br />
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| - | [[1a58]] - Cyp – ''Brugia malayi''<br />
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| - | [[2ko7]] – BpCyp+inhibitor – ''Burkholderia pseudomallei''<br />
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| - | [[2ke0]] – BpCyp – NMR
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| - | === Rotamase (FKBP) ===
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| - | [[1fks]], [[1fkt]], [[1fkr]], [[2kfw]] – EcFKBP – NMR<br />
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| - | [[1q6h]], [[1q6u]] – EcFKBP<br />
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| - | [[1q6i]] – EcFKBP+FK-506<br />
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| - | [[3jxv]], [[3jym]] – FKBP73 – wheat<br />
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| - | [[3mdy]] – hFKBP-1A+BMPR1B<br />
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| - | [[3h9r]] - hFKBP-1A+ activin receptor type I<br />
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| - | [[1j4r]] – hFKBP-1+FKB-001<br />
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| - | [[2ppp]], [[2ppn]], [[2dg3]], [[1d6o]] – hFKBP-12<br />
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| - | [[2ppo]] – hFKBP-12 (mutant)<br />
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| - | [[2dg4]], [[1fkb]] - hFKBP-12+rapamycin<br />
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| - | [[2fap]], [[1nsg]], [[1fap]] - hFKBP-12+rapamycin+FRB<br />
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| - | [[1f40]] - hFKBP-12+GPI-1046<br />
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| - | [[1a7x]] – hFKBP-12+FK-1012<br />
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| - | [[1d7h]], [[1d7i]], [[1d7j]], [[1fkg]], [[1fkh]], [[1fki]] - hFKBP-12+ligand<br />
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| - | [[2dg9]] - hFKBP-12 (mutant)+rapamycin<br />
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| - | [[1fkl]] - cFKBP-12+rapamycin - cow<br />
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| - | [[2pbc]] - hFKBP-13<br />
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| - | [[1y0o]], [[1u79]] – AtFKBP-13 - ''Arabidopsis thaliana''<br />
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| - | [[2kfv]] – hFKBP-25 N-terminal<br />
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| - | [[2vn1]] – PfFKBP-35 FK506-binding domain+FK506<br />
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| - | [[3b7x]] – hFKBP-36 <br />
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| - | [[2if4]] – AtFKBP<br />
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| - | [[2f4e]] - AtFKBP-42 N-terminal<br />
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| - | [[1kt0]], [[1kt1]] – hFKBP-51 (mutant)<br />
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| - | [[1ix5]] – FKBP – ''Methanothermococcus thermolithotrophicus'' – NMR<br />
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| - | [[1bl4]] – hFKBP (mutant)+inhibitor<br />
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| - | [[1bkf]] – hFKBP (mutant)+FK-506<br />
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| - | [[1fkf]] - hFKBP+FK-506<br />
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| - | [[1fkr]], [[1fks]], [[1fkt]] – hFKBP - NMR<br />
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| | + | == References == |
| | + | <references/> |
| | [[Category:Topic Page]] | | [[Category:Topic Page]] |