» Articles » PMID: 12357034

Crystal Structure of Human Calcineurin Complexed with Cyclosporin A and Human Cyclophilin

Overview
Specialty Science
Date 2002 Oct 3
PMID 12357034
Citations 83
Authors
Affiliations
Soon will be listed here.
Abstract

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.

Citing Articles

Macrocyclic peptides as a new class of targeted protein degraders.

Jing X, Mackay J, Passioura T RSC Chem Biol. 2025; 6(3):326-337.

PMID: 39822773 PMC: 11733494. DOI: 10.1039/d4cb00199k.


Structure-Based Design of "Head-to-Tail" Macrocyclic PROTACs.

Li C, Chen Y, Huang W, Qiu Y, Huang S, Zhou Y JACS Au. 2024; 4(12):4866-4882.

PMID: 39735913 PMC: 11672125. DOI: 10.1021/jacsau.4c00831.


Insights on Structure-Passive Permeability Relationship in Pyrrole and Furan-Containing Macrocycles.

Ly H, Desgagne M, Nguyen D, Comeau C, Froehlich U, Marsault E J Med Chem. 2024; 67(5):3711-3726.

PMID: 38417040 PMC: 10946398. DOI: 10.1021/acs.jmedchem.3c02162.


Elucidation of GPR55-Associated Signaling behind THC and LPI Reducing Effects on Ki67-Immunoreactive Nuclei in Patient-Derived Glioblastoma Cells.

Kolbe M, Hohmann T, Hohmann U, Maronde E, Golbik R, Prell J Cells. 2023; 12(22).

PMID: 37998380 PMC: 10670585. DOI: 10.3390/cells12222646.


Calcineurin Is a Universal Regulator of Vessel Function-Focus on Vascular Smooth Muscle Cells.

Nolze A, Matern S, Grossmann C Cells. 2023; 12(18).

PMID: 37759492 PMC: 10528183. DOI: 10.3390/cells12182269.


References
1.
Griffith J, Kim J, Kim E, Sintchak M, Thomson J, Fitzgibbon M . X-ray structure of calcineurin inhibited by the immunophilin-immunosuppressant FKBP12-FK506 complex. Cell. 1995; 82(3):507-22. DOI: 10.1016/0092-8674(95)90439-5. View

2.
Zhu D, Cardenas M, Heitman J . Calcineurin mutants render T lymphocytes resistant to cyclosporin A. Mol Pharmacol. 1996; 50(3):506-11. View

3.
Alberg D, Schreiber S . Structure-based design of a cyclophilin-calcineurin bridging ligand. Science. 1993; 262(5131):248-50. DOI: 10.1126/science.8211144. View

4.
Theriault Y, Logan T, Meadows R, Yu L, Olejniczak E, Holzman T . Solution structure of the cyclosporin A/cyclophilin complex by NMR. Nature. 1993; 361(6407):88-91. DOI: 10.1038/361088a0. View

5.
Brunger A, Adams P, Clore G, DeLano W, Gros P, Grosse-Kunstleve R . Crystallography & NMR system: A new software suite for macromolecular structure determination. Acta Crystallogr D Biol Crystallogr. 1998; 54(Pt 5):905-21. DOI: 10.1107/s0907444998003254. View