Two-dimensional crystals of reconstituted β-subunits of the chaperonin TF55 from Sulfolobus shibatae

被引:21
作者
Koeck, PJB [1 ]
Kagawa, HK
Ellis, MJ
Hebert, H
Trent, JD
机构
[1] Karolinska Inst, Novum, Dept Biosci, S-14157 Huddinge, Sweden
[2] Argonne Natl Lab, Ctr Mechanist Biol & Biotechnol, Argonne, IL 60439 USA
来源
BIOCHIMICA ET BIOPHYSICA ACTA-PROTEIN STRUCTURE AND MOLECULAR ENZYMOLOGY | 1998年 / 1429卷 / 01期
关键词
two-dimensional protein crystal; transmission electron microscopy; chaperonin; TF55; archaeon; (Sulfolobus shibatae);
D O I
10.1016/S0167-4838(98)00218-0
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
We have obtained 2-dimensional crystals of the P-subunits of the chaperonin TF55 from Sulfolobus shibatae reconstituted into oligomers in the absence of alpha-subunits. The subunits form rings with 9-fold rotational symmetry which arrange themselves in a trigonal lattice. From electron micrographs of negatively stained specimens we have calculated a projection map in plane group p312 showing the rings in top-view. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:40 / 44
页数:5
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