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Article

Partial characterization of α‐mannosidase from Yarrowia lipolytica

Rosario Vega

Departamento de Microbiologia, Genética, Medicina Preventiva y Salud Pública, Universidad de Salamanca, 37071 Salmanca, Spain

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Dr. Angel Domínguez

Corresponding Author

Departamento de Microbiologia, Genética, Medicina Preventiva y Salud Pública, Universidad de Salamanca, 37071 Salmanca, Spain

Departamento de Microbiologia, Genética, Medicina Preventiva y Salud Pública, Universidad de Salamanca, 37071 Salamanca, Spain
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First published: 1988
Cited by: 1

Abstract

An exo‐α‐mannosidase (E.C. 3.2.1.24) was characterized in the yeast form of Yarrowia lipolytica. The enzyme located in a crude particulate fraction of the cell extract is under catabolite repression, has an optimum pH of 6.0, a Km of 0.27 mM with p‐nitrophenyl‐α‐D‐mannopyranoside and is partially inhibited by D‐mannose.

The enzyme is not affected by ethylenediaminotetraacetic acid, several cations (only Zn++ increased its activity in a 25%) or sulphydryl reagents and can be partially solubilized by treatment with digitonine.

Number of times cited: 1

  • , Environmental and industrial applications of Yarrowia lipolytica, Applied Microbiology and Biotechnology, 84, 5, (847), (2009).