Evolutionary gain of function for the ER membrane protein Sec62 from yeast to humans.
Evolutionary gain of function for the ER membrane protein Sec62 from yeast to humans.
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DOI:
10.1091/mbc.e09-08-0730
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发表时间:
2010-03-01
影响因子:
3.3
通讯作者:
Zimmermann R
中科院分区:
文献类型:
--
作者:
Müller L;de Escauriaza MD;Lajoie P;Theis M;Jung M;Müller A;Burgard C;Greiner M;Snapp EL;Dudek J;Zimmermann R
We characterized interactions between the human proteins Sec62 and Sec63 as well as the putative interaction of human Sec62 with ribosomes. The data demonstrate evolutionary conservation of Sec62/Sec63 interaction and indicate that in the course of evolution Sec62 of vertebrates has gained the additional function to interact with ribosomes. Because of similarity to their yeast orthologues, the two membrane proteins of the human endoplasmic reticulum (ER) Sec62 and Sec63 are expected to play a role in protein biogenesis in the ER. We characterized interactions between these two proteins as well as the putative interaction of Sec62 with ribosomes. These data provide further evidence for evolutionary conservation of Sec62/Sec63 interaction. In addition, they indicate that in the course of evolution Sec62 of vertebrates has gained an additional function, the ability to interact with the ribosomal tunnel exit and, therefore, to support cotranslational mechanisms such as protein transport into the ER. This view is supported by the observation that Sec62 is associated with ribosomes in human cells. Thus, the human Sec62/Sec63 complex and the human ER membrane protein ERj1 are similar in providing binding sites for BiP in the ER-lumen and binding sites for ribosomes in the cytosol. We propose that these two systems provide similar chaperone functions with respect to different precursor proteins.
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DOI:
10.1083/jcb.200409174
发表时间:
2005-01-31
期刊:
The Journal of cell biology
影响因子:
--
作者:
Alder NN;Shen Y;Brodsky JL;Hendershot LM;Johnson AE
通讯作者:
Johnson AE
影响因子:
64.8
作者:
Ferbitz, L;Maier, T;Ban, N
通讯作者:
Ban, N
影响因子:
29.4
作者:
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通讯作者:
Speer, R
DOI:
10.1073/pnas.97.13.7214
发表时间:
2000-06-20
影响因子:
11.1
作者:
Tyedmers, J;Lerner, M;Zimmermann, R
通讯作者:
Zimmermann, R
DOI:
10.1083/jcb.200312079
发表时间:
2004-03-29
期刊:
The Journal of cell biology
影响因子:
--
作者:
Snapp EL;Reinhart GA;Bogert BA;Lippincott-Schwartz J;Hegde RS
通讯作者:
Hegde RS