期刊
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
卷 76, 期 21, 页码 7363-7366出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AEM.01326-10
关键词
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资金
- Chevron Technology Ventures [RSO21]
- University of California, Davis, Committee on Research New Funding Initiative
We cloned and purified the major family 10 xylanase (Xyn10A) from Acidothermus cellulolyticus 11B. Xyn10A was active on oat spelt and birchwood xylans between 60 degrees C and 100 degrees C and between pH 4 and pH 8. The optimal activity was at 90 degrees C and pH 6; specific activity and K-m for oat spelt xylan were 350 mu mol xylose produced min(-1) mg of protein(-1) and 0.53 mg ml(-1), respectively. Based on xylan cleavage patterns, Xyn10A is an endoxylanase, and its half-life at 90 degrees C was approximately 1.5 h in the presence of xylan.
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