Characterization of the cyclophilin of Trichophyton mentagrophytes |
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Authors: | Kano R Nakamura Y Watanabe S Tsujimoto H Hasegawa A |
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Institution: | Department of Pathobiology, Nihon University School of Veterinary Medicine, Fujisawa, Kanagawa, Japan. kano@brs.nihon-u.ac.jp |
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Abstract: | A genetic approach to cyclophilins in a dermatophyte, Trichophyton mentagrophytes, was carried out. The nucleotide and deduced amino acid sequences of the cyclophilin of T. mentagrophytes shared about 70% sequence similarity with those of Schizosaccharomyces pombe, Saccharomyces cerevisiae and Candida albicans. However, the first 21 amino acid and the C-terminal amino acid regions of 188 to 226 of the T. mentagrophytes cyclophilin were distinct from those of the other fungal cyclophilins. The recombinant glutathione S-transferase (GST)-T. mentagrophytes cyclophilin fusion protein produced by Escherichia coli was purified. The protease digest of the fusion protein had a molecular weight of about 13 kDa and peptidyl-prolyl cis-trans isomerase (PPI) activity. This digest protein from T. mentagrophytes was confirmed to be cyclophilin by proving PPI activity. |
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Keywords: | cyclophilin cyclosporin A dermatophytes cDNA trichophyton mentagrophytes |
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