Targeting of an abundant cytosolic form of the protein import receptor at Toc159 to the outer chloroplast membrane.
Targeting of an abundant cytosolic form of the protein import receptor at Toc159 to the outer chloroplast membrane.
复制标题
DOI:
10.1083/jcb.200104022
复制
发表时间:
2001-07-23
期刊:
影响因子:
--
通讯作者:
Kessler F
中科院分区:
文献类型:
--
作者:
Hiltbrunner A;Bauer J;Vidi PA;Infanger S;Weibel P;Hohwy M;Kessler F
Chloroplast biogenesis requires the large-scale import of cytosolically synthesized precursor proteins. A trimeric translocon (Toc complex) containing two homologous GTP-binding proteins (atToc33 and atToc159) and a channel protein (atToc75) facilitates protein translocation across the outer envelope membrane. The mechanisms governing function and assembly of the Toc complex are not yet understood. This study demonstrates that atToc159 and its pea orthologue exist in an abundant, previously unrecognized soluble form, and partition between cytosol-containing soluble fractions and the chloroplast outer membrane. We show that soluble atToc159 binds directly to the cytosolic domain of atToc33 in a homotypic interaction, contributing to the integration of atToc159 into the chloroplast outer membrane. The data suggest that the function of the Toc complex involves switching of atToc159 between a soluble and an integral membrane form.
登录
查看更多内容
影响因子:
3.5
作者:
Bölter, B;May, T;Soll, J
通讯作者:
Soll, J
DOI:
10.1073/pnas.080491597
发表时间:
2000-04-25
影响因子:
11.1
作者:
Sveshnikova, N;Soll, J;Schleiff, E
通讯作者:
Schleiff, E
影响因子:
56.9
作者:
SCHNELL, DJ;KESSLER, F;BLOBEL, G
通讯作者:
BLOBEL, G
影响因子:
56.9
作者:
KESSLER, F;BLOBEL, G;SCHNELL, DJ
通讯作者:
SCHNELL, DJ
影响因子:
4.8
作者:
Tsai, LY;Tu, SL;Li, HM
通讯作者:
Li, HM