| abstract |
The invention belongs to the technical field of biology, and relates to a metagenome-derived xylanase, in particular to xylanase, a gene and application thereof. The invention clones a xylanase gene from a metagenome library of papermaking wastewater, and the protein coded by the xylanase gene can well hydrolyze glycosidic bonds in an internal cutting mode and can be efficiently expressed in an escherichia coli host. The xylanase of the invention has good stability and high activity under the conditions of high temperature and high pH, thus being applicable to the paper industry. |