亚细胞定位： 蛋白分子量：纯化方法：Affinity purification Gene ID： 克隆号：3B3背景资料：S-tag is the name of an oligopeptide derived from pancreatic ribonuclease A (RNase A).. IF RNase A is digested with subtilisin, a single peptide bond is cleaved, but the resulting two products remain weakly bound to each other and the protein, called ribonuclease S, remains active although each of the two products alone shows no enzymatic activity. The N-terminus of the original RNase A, also called S-peptide, consists of 20 amino acid residues, of which only the first 15 are required for ribonuclease activity. This 15 amino acids long peptide is called S15 or S-tag.The amino acid sequence of the S-tag is: KETAAAKFERQHMDS conjugated to KLH. S- Tag can recognize C-terminal, internal, and N-terminal S-tagged proteins.