CRYSTALLIZATION AND PRELIMINARY-X-RAY STUDIES OF PSOPHOCARPIN-B1, A CHYMOTRYPSIN INHIBITOR FROM WINGED BEAN-SEEDS

被引：11

作者：

DATTAGUPTA, JK ^{[1
]}

CHAKRABARTI, C ^{[1
]}

PODDER, A ^{[1
]}

机构：

[1] INDIAN INST CHEM BIOL,DIV BIOCHEM ENGN,CALCUTTA 700032,W BENGAL,INDIA

来源：

JOURNAL OF MOLECULAR BIOLOGY | 1990年 / 216卷 / 02期

关键词：

D O I：

10.1016/S0022-2836(05)80312-2

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Psophocarpin B1 is a 20,000 Mr protein of winged bean (Psophocarpus tetragonolobus) seeds having chymotrypsin inhibitory activity. Single crystals of this protein suitable for X-ray crystallographic studies have been obtained by the vapour diffusion method using ammonium sulphate. The crystals are hexagonal, space group P6422 or P6222, cell dimensions a=b=61 Å, c=210 Å. They are stable to irradiation with X-rays and diffract to at least 2·6 Å resolution. © 1990 Academic Press Limited.

引用

页码：229 / 231

页数：3

共 16 条

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