The tetratricopeptide repeats of receptors involved in protein translocation across membranes.
The tetratricopeptide repeats of receptors involved in protein translocation across membranes.
复制标题
参与蛋白质跨膜易位的受体的四肽重复。
DOI:
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复制
发表时间:
2007
影响因子:
10.7
通讯作者:
E. Schleiff
中科院分区:
文献类型:
--
作者:
Thomas Schlegel;O. Mirus;A. von Haeseler;E. Schleiff
Transport of polypeptides across membranes is a general and essential process in every cell. This process is utilized by molecular machines composed of soluble and membrane-inserted proteins. At least one component of the molecular transport machines present in different membranes contains a subunit with a domain composed of 3 tetratricopeptide repeat (TPR) motifs. These domains are important for protein-protein interaction, for example, recognition of chaperones. To understand the evolution of these TPR domain-containing receptors involved in protein translocation, we inferred their phylogenetic relationships. We show that the evolutionary rate of these TPR domains is reduced when compared with the remaining sequence. The reduction is explained by the interaction of the TPR domains with their substrates. Based on the TPR tree, we propose that Sec72 recognizes Hsp70 and that Tom34 recognizes Hsp90. The phylogeny can further be used to assign the localization of the Toc64 isoforms to mitochondria or chloroplasts. Our findings are discussed in the context of the evolutionary development of translocation systems with focus on the occurrence of Hsp70/Hsp90-recognizing TPR domains in these machineries.
影响因子:
5.6
作者:
Magliery, TJ;Regan, L
通讯作者:
Regan, L
DOI:
10.1006/abbi.2002.2778
发表时间:
2002
期刊:
Archives of biochemistry and biophysics.
影响因子:
--
作者:
Yang,Chun-Song;Weiner,Henry
通讯作者:
Weiner,Henry
影响因子:
4.1
作者:
Flom, Gary;Behal, Robert H.;Johnson, Jill L.
通讯作者:
Johnson, Jill L.