ERj1p uses a universal ribosomal adaptor site to coordinate the 80S ribosome at the membrane

被引:52
作者
Blau, M
Mullapudi, S
Becker, T
Dudek, J
Zimmermann, R
Penczek, PA
Beckmann, R
机构
[1] Univ Med Sch Berlin, Charite, Inst Biochem, D-10117 Berlin, Germany
[2] Univ Texas, Houston Med Sch, Houston, TX 77030 USA
[3] Univ Saarland, D-66421 Homburg, Germany
关键词
D O I
10.1038/nsmb998
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
Ribosomes translating secretory and membrane proteins are targeted to the endoplasmic reticulum membrane and attach to the protein-conducting channel and ribosome-associated membrane proteins (RAMPs). Recently, a new RAMP, ERj1p, has been identified that recruits BiP to ribosomes and regulates translational activity. Here we present the cryo-EM structure of a ribosome-ERj1p complex, revealing how ERj1p coordinates the ribosome at the membrane and how allosteric effects may mediate ERj1p's regulatory activity.
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收藏
页码:1015 / 1016
页数:2
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