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Relationship between Candida albicans producing proteinase (CAPP) and its environmental pH--comparison with a case of trichophyton mentagrophytes
Journal of Korean Medical Science ; : 97-101, 1987.
Artigo em Inglês | WPRIM | ID: wpr-214023
ABSTRACT
Candida albicans produced a karatinolytic proteinase (KPase) or C. albicans producing proteinase (CAPP), a proposed new term for this enzyme, and Trichophyton mentagrophytes also produced KPase when cultivated in liquid medium containing human stratum corneum (HSC) as the nitrogen source, but were unable to do so when cultivated in sabouraud dextrose broth. Purified KPase from the culture supernatants of C. albicans had a molecular weight of 42,000 and an optimum pH at 4.0. The KPase was found to belong to the carboxyl proteinases group and its activity was strongly inhibited by pepstatin. Both fungi were able to grow by secreting KPase which digested HSC for nutrients. KPase from both fungi had high activity in each optimum pH, such as weakly acidic pH on C. albicans and neutral pH on T. mentagrophytes to adapt their surrounding environment by changing the environmental pH into their own optimum pH.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Endopeptidases / Trichophyton / Candida albicans / Meios de Cultura / Concentração de Íons de Hidrogênio / Peso Molecular Idioma: Inglês Revista: Journal of Korean Medical Science Ano de publicação: 1987 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Endopeptidases / Trichophyton / Candida albicans / Meios de Cultura / Concentração de Íons de Hidrogênio / Peso Molecular Idioma: Inglês Revista: Journal of Korean Medical Science Ano de publicação: 1987 Tipo de documento: Artigo