Abstract:The xylanase produced by strain L10608 has good hydrolysis properties when hydrolyzed substrate of xylan. The xylanase gene(xyn-GH10 and xyn-GH11) of L10608 was obtained by nested PCR. The xylanase gene (xyn-GH10 and xyn-GH11) was obtained by nested PCR, then the bioinformatics analysis was performed. The xyn-GH10 has a total length of 1 469 bp, molecular weight: 50.677 ku; theoretical pI: 7.98; It predicted that the xylanase signal peptide is MGIQALPRAAVRQKLRTPLPALAAGVLGLTAALVPPTNADA by Signal4.0; the xylanase protein sequence has distinct family 10 glycoside hydrolase sarcina barrel conserved region catalysis domain, and encoded a non-catalytic section RicinB-lectin domain consists of 108 amino acids. xyn-GH11 full length is 729 bp; molecular weight: 24.003 ku; theoretical pI: 8.98; It predicted that the xylanase signal peptide is MHQDGSQQDRTQNPAPFGGLSRRGFLVGGTGAAALAAGSGLLLPGTAHAA by signal 4.0. The xylanase protein sequence has a distinct “right-hand” conserved region of the family 11 of glycoside hydrolases. The xyn-GH10 activity was 160 U/mL, and the activity of xyl-GH11 was 55 U/mL.