Methods:Various analytical techniques including gene sequencing,amino acid composition,analysis of N terminal amino acid analysis,peptide mapping,IEF,molecular weight and UV scanning were used.

• 方法:用基因测序、氨基酸组成分析、N末端氨基酸测序、胰肽图谱、IEF、分子量、紫外扫描等各种实验手段对重组L天冬酰胺酶及其天然品进行了全面比较。