Purification and Characterization of Phospholipase B from Candida utilis
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- FUJINO Shuji
- Laboratory of Food Biochemistry, Department of Bioresources, Faculty of Agriculture, Ehime University
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- AKIYAMA Daigo
- Laboratory of Food Biochemistry, Department of Bioresources, Faculty of Agriculture, Ehime University
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- AKABOSHI Satoko
- Laboratory of Food Biochemistry, Department of Bioresources, Faculty of Agriculture, Ehime University
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- FUJITA Tomonari
- Laboratory of Food Biochemistry, Department of Bioresources, Faculty of Agriculture, Ehime University
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- WATANABE Yasuo
- Laboratory of Food Biochemistry, Department of Bioresources, Faculty of Agriculture, Ehime University
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- TAMAI Youichi
- Laboratory of Food Biochemistry, Department of Bioresources, Faculty of Agriculture, Ehime University
Bibliographic Information
- Other Title
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- Purification and Characterization of Phospholipase B from<i>Candida utilis</i>
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Abstract
Phospholipase B (PLB) from the asporogenous yeast Candida utilis was purified to homogeneity from a culture broth. The apparent molecular mass was 90–110 kDa by SDS–PAGE. The enzyme had two pH optima, one acidic (pH 3.0) and the other alkaline (pH 7.5). At acidic pH the enzyme hydrolyzed all phospholipids tested without metal ions. On the other hand, the PLB showed substrate specificity and required metal ions for alkaline activity.<BR>The cDNA sequence of the PLB was analyzed by a combination of several PCR procedures. The PLB encoded a protein consisting of 643 amino acids. The amino acid sequence contained a lipase consensus sequence (GxSxG) and catalytic arginine and aspartic acid motifs which were identified as the catalytic triad in the PLB from Kluyveromyces lactis, suggesting that the catalytic mechanism of the PLB is similar to that of cytosolic phospholipase A2 (cPLA2), found in mammalian tissues.
Journal
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 70 (2), 377-386, 2006
Japan Society for Bioscience, Biotechnology, and Agrochemistry
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Details 詳細情報について
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- CRID
- 1390001206475749376
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- NII Article ID
- 10018534107
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- NII Book ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL BIB ID
- 7833431
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed