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2011•Advanced materials researchOpen access

Thermostability Evolution of the Xylanase

Yan Yang, Wei Zhang, Hui Lian, Jia Huang, Heng Li, Shi Hua Wang

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Abstract

Xylanase (E.C 3.2.1.8) is a widespread group of enzyme which can catalyze the endohydrolysis of 1, 4-β-D-xylosidic linkages in xylan. The thermostable xylanase has attracted widely attention because of its application in industrial processes. In this study, the cDNA of xylanase gene was obtained fromAspergillus nigerC3486 by RT-PCR. The xylanase DNA contains a 50 bp intron through the comparison between the DNA and cDNA sequence. The thermostability of this xylanase was significantly improved by directed evolution.

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What this paper is about

Xylanase (E.C 3.2.1.8) is a widespread group of enzyme which can catalyze the endohydrolysis of 1, 4-β-D-xylosidic linkages in xylan. The thermostable xylanase has attracted widely attention because of its application in industrial processes. In this study, the cDNA of xylanase gene was obtained fromAspergillus nigerC3486 by RT-PCR. The xylanase DNA contains a 50 bp intron through the comparison between the DNA and cDNA sequence. The thermostability of this xylanase was significantly improved by directed evolution.

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Available abstract

Xylanase (E.C 3.2.1.8) is a widespread group of enzyme which can catalyze the endohydrolysis of 1, 4-β-D-xylosidic linkages in xylan. The thermostable xylanase has attracted widely attention because of its application in industrial processes. In this study, the cDNA of xylanase gene was obtained fromAspergillus nigerC3486 by RT-PCR. The xylanase DNA contains a 50 bp intron through the comparison between the DNA and cDNA sequence. The thermostability of this xylanase was significantly improved by directed evolution.

Key concepts: Xylanase, Thermostability, Aspergillus niger, Xylan, Complementary DNA, DNA, Gene, Enzyme

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