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1mf8
From Proteopedia
| 1mf8, resolution 3.10Å () | |||||||||
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| Ligands: | , | ||||||||
| Non-Standard Residues: | , , , , , | ||||||||
| Activity: | Phosphoprotein phosphatase, with EC number 3.1.3.16 | ||||||||
| Related: | 1aui, 1bck, 1c5f, 1csa, 1cwa, 1cwb, 1cwc, 1cwf, 1cwh, 1cwi, 1cwj, 1cwk, 1cwl, 1cwm, 1cwo, 1cya, 1cyb, 1cyn, 1ikf, 1m63, 1mik, 1qng, 1qnh, 1xq7, 2esl, 2oju, 2poy, 2rma, 2rmb, 2rmc, 2wfj, 2x2c, 2x7k, 2z6w, 3bo7, 3cys, 3eov | ||||||||
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||
Contents |
Crystal Structure of human calcineurin complexed with cyclosporin A and human cyclophilin
Calcineurin (Cn), a Ca(2+)/calmodulin-dependent Ser/Thr protein phosphatase, is an important participant in signaling pathways that activate T cells. It is the target of the immunosuppressive drugs cyclosporin A (CsA) and FK506. These drugs bind proteins known as cyclophilin (Cyp) and FK506-binding protein, respectively, and the drug-protein complexes in turn inhibit Cn. We report the crystal structure of a Cyp/CsA/Cn ternary complex, determined to a resolution of 3.1 A. Residues 3-9 of CsA, particularly N-methyl leucines 4 and 6, and Trp-121 of Cyp form a composite surface for interaction with Cn. The hydrophobic interface buries two hydrogen bonds. The structure accounts clearly for the effects of mutations in Cn on CsA-resistance and for the way modifications of CsA alter immunosuppressive activity.
Crystal structure of human calcineurin complexed with cyclosporin A and human cyclophilin., Jin L, Harrison SC, Proc Natl Acad Sci U S A. 2002 Oct 15;99(21):13522-6. Epub 2002 Sep 30. PMID:12357034
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
About this Structure
1mf8 is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.
See Also
Reference
- Jin L, Harrison SC. Crystal structure of human calcineurin complexed with cyclosporin A and human cyclophilin. Proc Natl Acad Sci U S A. 2002 Oct 15;99(21):13522-6. Epub 2002 Sep 30. PMID:12357034 doi:10.1073/pnas.212504399
