鉴别和检查指标标准：通过理化性质、紫外光谱、分子量指标、指纹图谱、水解氨基酸指标五部分进行确定。
The standard of identification: it has been identified according to physiochemistry, UV spectrum, molecular weight, Chromatographic Fingerprints and amino acid analysis.
发现两者在蛋白质组成，分子量，等电点及氨基酸组成上颇为相近。但免疫扩散试验证实两者无免疫交叉反应。
Some similarities in polypeptide components, molecular weight, isoelectric point and amino acid composition were found, but no immunocross reaction between them was observed.
福建产圆斑蝰蛇毒毒性磷酯酶A_2分子由18种氨基酸的124个残基组成，由此计算它们的分子量为13，883。
The toxic phospholipase A of Vipera russelli siamensis venom is composed of 124 residues from 18 kinds of amino acids and lias a molecular weight of 13,883 daltons.
其次，本文研究了肽中氨基酸组成的定量分析方法和肽分子量分布的分析。
Secondly, the analysis of the composition of amino-acids and the distribution of molecular weight of peptides were studied.
一含682个氨基酸残基的单个多肽链的大致分子量是多少？
What is the approximate molecular weight of a protein with 682 amino acid residues in a single polypeptide chain?
测得该酶分子量约为30500道尔顿，含272个氨基酸残基。
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。
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。
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.
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