共 74 条
New insights into signal recognition and elongation arrest activities of the signal recognition particle
被引:37
作者:

Bui, N
论文数: 0 引用数: 0
h-index: 0
机构: Univ Geneva, Dept Biol Cellulaire, CH-1211 Geneva 4, Switzerland

Strub, K
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Geneva, Dept Biol Cellulaire, CH-1211 Geneva 4, Switzerland Univ Geneva, Dept Biol Cellulaire, CH-1211 Geneva 4, Switzerland
机构:
[1] Univ Geneva, Dept Biol Cellulaire, CH-1211 Geneva 4, Switzerland
[2] DKFZ German Canc Res Ctr, Cytogenet Div Abt H0400, D-69129 Heidelberg, Germany
关键词:
evolution;
RNA-protein;
signal sequence;
translation;
translocation;
D O I:
10.1515/BC.1999.021
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:
The signal recognition particle (SRP), a ubiquitous cytoplasmic ribonucleoprotein particle, plays an essential role in promoting co-translational translocation of proteins into the endoplasmic reticulum, Here, we summarise recent progress made in the understanding of two essential SRP functions: the signal recognition function, which ensures the specificity, and the elongation arrest function, which increases the efficiency of translocation. Our discussion is based on functional data as well as on atomic structure information, both of which also support the notion that SRP is a very ancient particle closely related to ribosomes. Based on the significant increase of knowledge that has been accumulating on the structure of elongation factors and on their interactions with the ribosome, we speculate about a possible mechanism of the elongation arrest function.
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页码:135 / 145
页数:11
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