Detailed Information on Publication Record
2011
Structure of a Packaging-Defective Mutant of Minute Virus of Mice Indicates that the Genome Is Packaged via a Pore at a 5-Fold Axis
PLEVKA, Pavel, Susan HAFENSTEIN, Lei LI, Anthony, Jr. D'ABRAMO, Susan F. COTMORE et. al.Basic information
Original name
Structure of a Packaging-Defective Mutant of Minute Virus of Mice Indicates that the Genome Is Packaged via a Pore at a 5-Fold Axis
Authors
PLEVKA, Pavel, Susan HAFENSTEIN, Lei LI, Anthony, Jr. D'ABRAMO, Susan F. COTMORE, Michael G. ROSSMANN and Peter TATTERSALL
Edition
JOURNAL OF VIROLOGY, WASHINGTON, AMER SOC MICROBIOLOGY, 2011, 0022-538X
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 5.402
Organization unit
Central European Institute of Technology
UT WoS
000289787300019
Keywords in English
VP1 N-TERMINUS; FUNCTIONAL IMPLICATIONS; CANINE PARVOVIRUS; DNA-REPLICATION; TYPE-2; PROTEIN; HELICASE; BINDING; CAPSIDS; VIRION
Tags
Změněno: 29/3/2017 14:59, Mgr. Eva Špillingová
Abstract
V originále
The parvovirus minute virus of mice (MVM) packages a single copy of its linear single-stranded DNA genome into preformed capsids, in a process that is probably driven by a virus-encoded helicase. Parvoviruses have a roughly cylindrically shaped pore that surrounds each of the 12 5-fold vertices. The pore, which penetrates the virion shell, is created by the juxtaposition of 10 antiparallel beta-strands, two from each of the 5-fold-related capsid proteins. There is a bottleneck in the channel formed by the symmetry-related side chains of the leucines at position 172. We report here the X-ray crystal structure of the particles produced by a leucine-to-tryptophan mutation at position 172 and the analysis of its biochemical properties. The mutant capsid had its 5-fold channel blocked, and the particles were unable to package DNA, strongly suggesting that the 5-fold pore is the packaging portal for genome entry.