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Abstract:
应用硫酸铵分级沉降、弱阳交换色谱CM-Sephadex C-50、凝胶过滤色谱Sephacryl S-200HR、强阳离子高效液相色谱POROS HS-20,从黑豆种子中分离纯化一种耐热型蛋白酶抑制剂,命名为TSTI.该蛋白的N末端序列为DEYSKPCCDLCMCTRRCPPQ,与豆科植物Bowman-Birk型胰蛋白酶抑制剂具有高度同源性,推测其属于Bowman-Birk型胰蛋白酶抑制剂.SDS-PAGE和IEF测出TSTI分子量和等电点分别为23.9 kD和6.2.TSTI对胰蛋白酶有很强的抑制作用,当二者摩尔比达到1时,胰蛋白酶活力被完全抑制.此外,该蛋白酶抑制剂具有很强的热稳定性和pH...
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中国生物化学与分子生物学报
Year: 2011
Issue: 01
Volume: 27
Page: 90-95
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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