Purification and Partial Characterization of a Novel β-1,3-Endoglucanase from Streptomyces rutgersensis
A β-1,3-endoglucanase produced by Streptomyces rutgersensis was purified to a homogeneity by the fractional precipitation with ammonium sulfate, ion exchange chromatography on Q-Sepharose and hydrophobic chromatography on Butyl Sepharose. A typical procedure provided 11.74-fold purification with 12....
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Published in | Protein Journal Vol. 32; no. 5; pp. 411 - 417 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Boston
Springer US
01.06.2013
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Subjects | |
Online Access | Get full text |
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Summary: | A β-1,3-endoglucanase produced by
Streptomyces rutgersensis
was purified to a homogeneity by the fractional precipitation with ammonium sulfate, ion exchange chromatography on Q-Sepharose and hydrophobic chromatography on Butyl Sepharose. A typical procedure provided 11.74-fold purification with 12.53 % yield. SDS-PAGE of the purified protein showed one protein band. The exact molecular mass of the enzyme obtained by mass spectrometry was 41.25 kDa; the isoelectric point was between pH 4.2–4.4. The optimal β-glucanase catalytic activity was at pH 7 and 50 °C. An enzyme was only active toward glucose polymers containing β-1,3 linkages and hydrolyzed
Saccharomyces cerevisiae
cell wall β-glucan in an endo-like way: reaction products were different molecular size β-glucans, which were larger than glucose. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1572-3887 1573-4943 1875-8355 |
DOI: | 10.1007/s10930-013-9500-7 |