Title
Large-Scale Conformational Transitions And Dimerization Are Encoded In The Amino-Acid Sequences Of Hsp70 Chaperones
Abstract
Hsp70s are a class of ubiquitous and highly conserved molecular chaperones playing a central role in the regulation of proteostasis in the cell. Hsp70s assist a myriad of cellular processes by binding unfolded or misfolded substrates during a complex biochemical cycle involving large-scale structural rearrangements. Here we show that an analysis of coevolution at the residue level fully captures the characteristic large-scale conformational transitions of this protein family, and predicts an evolutionary conserved-and thus functional-homo-dimeric arrangement. Furthermore, we highlight that the features encoding the Hsp70 dimer are more conserved in bacterial than in eukaryotic sequences, suggesting that the known Hsp70/Hsp110 hetero-dimer is a eukaryotic specialization built on a preexisting template.
Year
DOI
Venue
2015
10.1371/journal.pcbi.1004262
PLOS COMPUTATIONAL BIOLOGY
Field
DocType
Volume
Sequence alignment,Protein family,Protein structure prediction,Proteostasis,Biology,Amino acid,Fungal protein,Bioinformatics,Chaperone (protein),Genetics,Peptide sequence
Journal
11
Issue
ISSN
Citations 
6
1553-734X
4
PageRank 
References 
Authors
0.41
4
4
Name
Order
Citations
PageRank
Duccio Malinverni140.41
Simone Marsili2121.69
Alessandro Barducci3335.60
Paolo De Los Rios4133.11