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荚膜红细菌孔蛋白的结晶及X射线初步分析

Crystallization and preliminary X-ray analysis of porin from Rhodobacter capsulatus.

作者信息

Nestel U, Wacker T, Woitzik D, Weckesser J, Kreutz W, Welte W

机构信息

Institut für Biophysik und Strahlenbiologie der Albert-Ludwigs-Universität, Freiburg i.Br., FRG.

出版信息

FEBS Lett. 1989 Jan 2;242(2):405-8. doi: 10.1016/0014-5793(89)80511-3.

DOI:10.1016/0014-5793(89)80511-3
PMID:2536626
Abstract

Porin monomers of the phototrophic bacterium Rhodobacter capsulatus were purified. Crystals were obtained from a solution of porin solubilized with the detergent octyltetraoxyethylene within 5 days using the vapor phase equilibration technique. The crystals were rhombohedral with an edge length of 0.4 mm. The space group was trigonal R3 with unit cell constants of a = b = 95 A, c = 147 A. Reflexions were observed to 3.2 A.

摘要

对光合细菌荚膜红假单胞菌的孔蛋白单体进行了纯化。使用气相平衡技术,在5天内从用去污剂辛基四氧乙烯溶解的孔蛋白溶液中获得了晶体。晶体为菱面体,边长0.4毫米。空间群为三方晶系R3,晶胞常数a = b = 95 Å,c = 147 Å。观察到的衍射分辨率为3.2 Å。

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