摘要
报导了小麦ＰＧＩＰ的部分性质，小麦ＰＧＩＰ是一种糖蛋白，含糖量６．８９％，对热不稳定，等电点为９．１和９．４，它抑制ｅｎｄｏ－ＰＧ的最适ｐＨ是４．０～５．５。测定了ＰＧＩＰ亚基的氨基酸组成，ｐＨ、离子强度和温度对ＰＧＩＰ活性的影响。
Some characteristics of polygalacturonase inhibiting protein (PGIP) in wheat are reported in this paper.The PGIP is a glycoprotein and contains 6. 89% of carbohydrates. It is instable in heat. Its isoelectric points are PH 9. 1 and 9. 4 on the isoelectric focusing. The optimum PGIP activity is at PH 1. 0～5. 5. The amino acid composition of PGIP subunit .effect of PH,ionic strength and temperature on PGIP were determined.
出处
《应用与环境生物学报》
CAS
CSCD
1995年第4期343-348,共6页
Chinese Journal of Applied and Environmental Biology
基金
国家自然科学基金
