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Multiple lignin peroxidases of Phanerochaete chrysosporium INA-12.

Authors
Type
Published Article
Journal
Enzyme and Microbial Technology
0141-0229
Publisher
Elsevier
Publication Date
Volume
12
Issue
6
Pages
447–452
Identifiers
PMID: 1366630
Source
Medline

Abstract

Nine proteins with lignin peroxidase activity were separated from cultures of Phanerochaete chrysosporium INA-12 in glycerol as carbon source and non-nitrogen limited. Four lignin peroxidase isozymes (4, 5, 8, 9) were purified and characterized. Although differences in kinetic parameters could be shown, antibody reaction showed homology between isozymes. However, thermal stability studied, peptide mapping results, and N-terminal sequence analyses established a higher degree of homology between isozymes 4/5 and 8/9 types. Protein characterization and kinetic data indicate that lignin peroxidase isozymes 4, 5, 8, and 9 differ from described isozymes in strain BKM. The higher specific activity of lignin peroxidase isozymes in cultures with glycerol than in nitrogen-starved cultures accounts for the higher lignin peroxidase activity obtained in these conditions.

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