化学学报 ›› 1997, Vol. 55 ›› Issue (11): 1116-1120. 上一篇    下一篇

研究论文

电喷雾电离质谱测定细胞色素b5及其定点突变蛋白

徐永珍;张一兵;孙雨龙;王韵华;黄仲贤   

  1. 中国科学院上海有机化学研究所;中国科学院生命有机化学国家重点实验室;复旦大学化学系
  • 发布日期:1997-11-15

Molecular weight determination of cytochrome Tb5 and Lb5 and their mutant proteins by electrosprary ionization mass spectrometry technique

XU YONGZHEN;ZHANG YIBING;SUN YULONG;WANG YUNHUA;HUANG ZHONGXIAN   

  • Published:1997-11-15

本文利用电喷雾电离质谱技术对胰蛋白酶酶解的细胞色素b5蛋白Tb5及脂肪酶酶解的细胞色素b5蛋白Lb5及它们的定点突变蛋白共八个样品的分子量进行精确测定, 证实定点突变的试验是成功的。

关键词: 分子量, 酶水解, 细胞色素, 胰蛋白酶, 定点突变, 电离质谱

The determination of molecular weights of cytochrome Tb5 and Lb5 and six mutant proteins has been succedded by using Electrosprary Ionization Mass Spectrometry (ESIMS) technique. The successful site-directed mutagenesis of cytochrom b5 has been proved.

Key words: MOLECULAR WEIGHT, ENZYME HYDROLYSIS, CYTOCHROME, TRYPSIN

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