Minute virus of mice small non-structural protein NS2 localizes within, but is not required for the formation of, Smn-associated autonomous parvovirus-associated replication bodies.
@article{Young2005MinuteVO,
title={Minute virus of mice small non-structural protein NS2 localizes within, but is not required for the formation of, Smn-associated autonomous parvovirus-associated replication bodies.},
author={Philip J. Young and A Newman and Klaus Thorleif Jensen and Lisa R. Burger and David J. Pintel and Christian L. Lorson},
journal={The Journal of general virology},
year={2005},
volume={86 Pt 4},
pages={
1009-14
}
}The non-structural proteins NS1 and NS2 of the parvovirus minute virus of mice (MVM) are required for efficient virus replication. It has previously been shown that NS1 and NS2 interact and colocalize with the survival motor neuron (Smn) gene product in novel nuclear structures that are formed late in infection, termed Smn-associated APAR (autonomous parvovirus-associated replication) bodies (SAABs). It is not clear what molecular viral intermediate(s) contribute to SAAB formation. The current…
15 Citations
Recruitment of DNA replication and damage response proteins to viral replication centers during infection with NS2 mutants of Minute Virus of Mice (MVM).
- BiologyVirology
- 2011
The Minute Virus of Mice NS2 proteins are not essential for productive infection of embryonic murine cells in utero.
- BiologyVirology
- 2014
Differential roles for the C-terminal hexapeptide domains of NS2 splice variants during MVM infection of murine cells.
- BiologyVirology
- 2006
Dynamics and interactions of parvoviral NS1 protein in the nucleus
- BiologyCellular microbiology
- 2007
Time‐lapse imaging of infected cells revealed that the intranuclear distribution of NS1‐EYFP evolves dramatically starting from the formation ofNS1 foci and proceeding to a homogenous distribution extending throughout the nucleus.
Mosquito densonucleosis virus non-structural protein NS2 is necessary for a productive infection.
- BiologyVirology
- 2008
Replication Initiator Protein NS1 of the Parvovirus Minute Virus of Mice Binds to Modular Divergent Sites Distributed throughout Duplex Viral DNA
- BiologyJournal of Virology
- 2007
It is shown that NS1 specifically binds to many internal sites, so that all viral fragments of more than ∼170 nucleotides effectively compete for NS1, often binding with higher affinity to these internal sites than to sites in the origins.
Mutations in the Non-Structural Protein-Coding Sequence of Protoparvovirus H-1PV Enhance the Fitness of the Virus and Show Key Benefits Regarding the Transduction Efficiency of Derived Vectors
- BiologyViruses
- 2018
It is hypothesize that the NS2 protein—modified in H1-PM-I, H-1- PM-II, and H 1-DM—may result in the stimulation of some maturation step(s) of the capsid and facilitate virus entry into subsequently infected cells.
An In-Frame Deletion in the NS Protein-Coding Sequence of Parvovirus H-1PV Efficiently Stimulates Export and Infectivity of Progeny Virions
- BiologyJournal of Virology
- 2012
It is hypothesized that the internal deletion within the NS2 and/or NS1 protein expressed by Del H-1PV results in the stimulation of some step of the viral life cycle, in particular, a maturation step(s), leading to more efficient nuclear export of infectious viral particles and increased fitness of the virus produced.
Characterising the role of the Cajal Body during a productive adenovirus infection
- Biology
- 2012
This investigation uncovered the involvement of two CB proteins in two very distinct roles during Ad infection, the first report suggesting a role for CBs in mRNA export and the first reports indicating that SMN may be involved in splicing of virus mRNAs.
Distribution and Dynamics of Transcription-Associated Proteins during Parvovirus Infection
- BiologyJournal of Virology
- 2012
Fluorescence recovery after photobleaching showed that the recovery kinetics of nuclear transcription-associated proteins, TATA binding protein, TBP, transcription factor IIB, and poly(A) binding protein nuclear 1 (PABPN1) were different in infected and noninfected cells, pointing to virus-induced alterations in binding dynamics of these proteins.
References
SHOWING 1-10 OF 34 REFERENCES
Minute Virus of Mice NS1 Interacts with the SMN Protein, and They Colocalize in Novel Nuclear Bodies Induced by Parvovirus Infection
- BiologyJournal of Virology
- 2002
It is shown that SMN can directly interact in vitro and in vivo with the large nonstructural protein NS1 of the autonomous parvovirus minute virus of mice (MVM), a protein essential for viral replication and a potent transcriptional activator.
The NS2 Proteins of Parvovirus Minute Virus of Mice Are Required for Efficient Nuclear Egress of Progeny Virions in Mouse Cells
- BiologyJournal of Virology
- 2002
Analysis of two MVM mutant genomic clones generating NS2 proteins that are unable to interact with Crm1 as a result of amino acid substitutions within their nuclear export signal (NES) sequences indicates that the interaction of MVMpNS2 proteins with the nuclear export receptor Crm 1 plays a critical role at a late stage of the parvovirus life cycle involved in release of progeny viruses.
The small nonstructural protein (NS2) of the parvovirus minute virus of mice is required for efficient DNA replication and infectious virus production in a cell-type-specific manner
- BiologyJournal of virology
- 1990
Results indicate that NS2 participates in MVM DNA replication and is required for efficient viral growth, and the requirement for NS2 during MVM replication is also host cell specific.
Nuclear Export Factor CRM1 Interacts with Nonstructural Proteins NS2 from Parvovirus Minute Virus of Mice
- BiologyJournal of Virology
- 1999
The characterization of the interaction with the NS2 proteins from the parvovirus minute virus of mice and rat as well as mouse homologues of the human CRM1 protein, a member of the importin-beta family recently identified as an essential nuclear export factor, strongly suggest that these nonstructural viral proteins are actively exported out of the nuclei of infected cells via aCRM1-mediated nuclear export pathway.
Nonstructural proteins NS2 of minute virus of mice associate in vivo with 14-3-3 protein family members
- BiologyJournal of virology
- 1996
To identify cellular partners of NS2 proteins, coimmunoprecipitation experiments were performed with various antibodies directed against the parvoviral products, and two cellular proteins with molecular masses of 30 and 32 kDa were found to associate in vivo with the NS2 polypeptides.
H-1 Parvovirus-Associated Replication Bodies: a Distinct Virus-Induced Nuclear Structure
- BiologyJournal of virology
- 2000
The results suggest that H-1 virus does not target known nuclear bodies for DNA replication but rather induces the formation of a novel structure in the nucleus of infected cells.
The NS2 polypeptide of parvovirus MVM is required for capsid assembly in murine cells.
- BiologyVirology
- 1997
In NS2-null infections of mouse cells there is a major primary defect in the folding or assembly processes required for effective capsid production, as at early times in infection, capsid protein synthesis and stability were normal, but particle assembly was impaired.
Activation of Promoter P4 of the Autonomous Parvovirus Minute Virus of Mice at Early S Phase Is Required for Productive Infection
- BiologyJournal of Virology
- 1999
Data show that E2F-mediated P4 activation at the early S phase is a limiting factor for parvovirus production and may be a sign of the virus adaptation to life in the S-phase host cell.
The cytotoxicity of the parvovirus minute virus of mice nonstructural protein NS1 is related to changes in the synthesis and phosphorylation of cell proteins
- BiologyJournal of virology
- 1997
The results indicate that NS1 interferes, within 7 h of induction, with phosphorylation of a protein of about 14 kDa (p14), which may be directly linked to cytotoxicity and is probably related to the previously reported inhibition of cell DNA synthesis.
Interaction between Parvovirus NS2 Protein and Nuclear Export Factor Crm1 Is Important for Viral Egress from the Nucleus of Murine Cells
- BiologyJournal of Virology
- 2002
ABSTRACT A mutation that disrupts the interaction between the NS2 protein of minute virus of mice and the nuclear export factor Crm1 results in a block to egress of mutant-generated full virions from…

