Isolation of an extracellular proteinase (Keratinase) fromMicrosporum canis
- 1 January 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Medical Mycology
- Vol. 20 (4) , 281-288
- https://doi.org/10.1080/00362178285380411
Abstract
Proteolytic activity was demonstrated when a strain of Microsporum canis was cultured in broth with human hair, but not in the medium without hair. The extracellular proteinase (keratinase) was isolated and purified by chromatography. Disc electrophoresis showed one protein band of extracellular proteinase, and the antibody against this enzyme gave a single precipitin line in agar diffusion. The IgG fraction completely neutralized the proteinase activity. The proteinase of M. canis may play a role in infection caused by this fungus, by affecting keratinized tissue such as stratum corneum and hair. Microsporum canis weist proteolytische Aktivität auf nur wenn er in Anwesenheit von Menschenhaaren in flüssigem Medium kultiviert wird. Bei Abwesenheit des Haares konnte keine proteolytische Aktivität beobachtet werden. Die extrazelluläre Proteinase (Keratinase) wurde isoliert und chromatographisch gereinigt. Disk-Elektrophorese der gereinigten Proteinase zeigte ein Proteinband. Der Antikörper gegen dieses Enzym gab eine einzige Präzipitinlinie im Agardiffusionstest. Die IgG-Fraktion dieses Antikörpers neutralisierte die Proteinaseaktivität vollkommen. Die Proteinase von Microsporum canis spielt wahrscheinlich eine Rolle bei der Infektion, indem sie das keratinsierte Gewebe (z. B. Stratum corneum oder Haar) beeinflusst.This publication has 15 references indexed in Scilit:
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