Crystal structure of recombinant human T-cell cyclophilin A at 2.5 A resolution - PubMed (original) (raw)

Comparative Study

Crystal structure of recombinant human T-cell cyclophilin A at 2.5 A resolution

H M Ke et al. Proc Natl Acad Sci U S A. 1991.

Abstract

The structure of the unligated human T-cell recombinant cyclophilin has been determined at 3 A resolution by multipole isomorphous replacement methods and refined at 2.5 A resolution to an R factor of 0.209. The root-mean-square errors of the bond lengths and bond angles are 0.013 A and 2.8 degrees from ideal geometry, respectively. The overall structure is a beta-barrel, consisting of eight antiparallel beta-strands wrapping around the barrel surface and two alpha-helices sitting on the top and the bottom closing the barrel. Inside the barrel, seven aromatic and other hydrophobic residues form a compact hydrophobic core. A loop of Lys-118 to His-126 and four beta-strands (B3-B6) constitute a pocket we speculate to be the binding site of cyclosporin A.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Nature. 1986 Nov 27-Dec 3;324(6095):383-5 - PubMed
    1. Science. 1991 May 10;252(5007):836-9 - PubMed
    1. Biochemistry. 1982 Aug 17;21(17):3955-65 - PubMed
    1. Adv Protein Chem. 1981;34:167-339 - PubMed
    1. Science. 1984 Nov 2;226(4674):544-7 - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources