Asn27 was found in all partial xylanase based on the alignment of deduced amino acid sequences,which means that all xylanase fragments were alkali-tolerant.

• 所得10个木聚糖酶片段的氨基酸序列同源性比较显示,第27个氨基酸均为天冬酰胺(N),暗示这些来自土壤微生物DNA的基因片段编码耐碱的木聚糖酶。