Gene for a cyclophilin-type peptidyl-prolyl cis-trans isomerase from a halophilic archaeum, Halobacterium cutirubrum

Gene
T IidaT Maruyama

Abstract

A gene encoding a cyclophilin (CyP)-type peptidyl prolyl cis-trans isomerase (PPIase) was cloned from a halophilic archaeum, Halobacterium cutirubrum DSM 669, and sequenced. Although amino-acid residues common to CyPs were conserved, an insertion that showed no homology to other CyPs was found in its N-terminal region. Sequence analysis revealed that the amino-acid sequence of this CyP was 40-45% identical to those of eukaryotes and Bacillus subtilis with high cyclosporin A sensitivity, but 27% identical to those of cyclosporin A-insensitive PPIases of Escherichia coli. The gene was also expressed in E. coli. The activity of purified recombinant CyP-type PPIase was stimulated by the addition of KCl, and was suppressed by cyclosporin A.

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Citations

Aug 10, 2017·World Journal of Microbiology & Biotechnology·Maria DimouPanagiotis Katinakis
Nov 26, 2020·Marine Drugs·Antonio Trincone
Dec 10, 1999·Microbiology and Molecular Biology Reviews : MMBR·A J MacarioE Conway de Macario

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