A folding zone in the ribosomal exit tunnel for Kv1.3 helix formation.
A folding zone in the ribosomal exit tunnel for Kv1.3 helix formation.
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DOI:
10.1016/j.jmb.2009.12.059
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发表时间:
2010-03-12
影响因子:
5.6
通讯作者:
Deutsch C
中科院分区:
文献类型:
--
作者:
Tu LW;Deutsch C
Although it is now clear that protein secondary structure can be acquired early, while the nascent peptide resides within the ribosomal exit tunnel, the principles governing folding of native polytopic proteins have not yet been elucidated. We now report an extensive investigation of native Kv1.3, a voltage-gated K+ channel, including transmembrane and linker segments synthesized in sequence. These native segments form helices vectorially (N- to C-terminus) only in a permissive vestibule located in the last 20Å of the tunnel. Native linker sequences similarly fold in this vestibule. Finally, secondary structure acquired in the ribosome is retained in the translocon. These findings emerge from accessibility studies of a diversity of native transmembrane and linker sequences and may therefore be applicable to protein biogenesis in general.
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影响因子:
16.2
作者:
Aggarwal, SK;MacKinnon, R
通讯作者:
MacKinnon, R
影响因子:
64.8
作者:
Long, Stephen B.;Tao, Xiao;MacKinnon, Roderick
通讯作者:
MacKinnon, Roderick
影响因子:
--
作者:
Mingarro, I;Nilsson, I;von Heijne, G
通讯作者:
von Heijne, G
DOI:
10.1085/jgp.113.3.415
发表时间:
1999-03
期刊:
The Journal of general physiology
影响因子:
--
作者:
Monks SA;Needleman DJ;Miller C
通讯作者:
Miller C
DOI:
10.1093/protein/14.8.529
发表时间:
2001-08-01
期刊:
PROTEIN ENGINEERING
影响因子:
--
作者:
Arai, R;Ueda, H;Nagamune, T
通讯作者:
Nagamune, T