Crystal Structure of a Four-Layer Aggregate of Engineered TMV CP Implies the Importance of Terminal Residues for Oligomer Assembly.

TitleCrystal Structure of a Four-Layer Aggregate of Engineered TMV CP Implies the Importance of Terminal Residues for Oligomer Assembly.
Publication TypeJournal Article
Year of Publication2013
AuthorsLi X, Song B, Chen X, Wang Z, Zeng M, Yu D, Hu D, Chen Z, Jin L, Yang S, Yang C, Chen B
JournalPloS one
Volume8
Issue11
Paginatione77717
Date Published2013
Abstract

Crystal structures of the tobacco mosaic virus (TMV) coat protein (CP) in its helical and disk conformations have previously been determined at the atomic level. For the helical structure, interactions of proteins and nucleic acids in the main chains were clearly observed; however, the conformation of residues at the C-terminus was flexible and disordered. For the four-layer aggregate disk structure, interactions of the main chain residues could only be observed through water-mediated hydrogen bonding with protein residues. In this study, the effects of the C-terminal peptides on the interactions of TMV CP were investigated by crystal structure determination.

DOI10.1371/journal.pone.0080011
Alternate JournalPLoS ONE