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Full-Text Articles in Medicine and Health Sciences
A Protein Encoded By The Latency-Related Gene Of Bovine Herpesvirus 1 Is Expressed In Trigeminal Ganglionic Neurons Of Latently Infected Cattle And Interacts With Cyclin-Dependent Kinase 2 During Productive Infection, Yunquan Jiang, Ashfaque Hossain, Mariah Teresa Winkler, Todd Holt, Alan R. Doster, Clinton J. Jones
A Protein Encoded By The Latency-Related Gene Of Bovine Herpesvirus 1 Is Expressed In Trigeminal Ganglionic Neurons Of Latently Infected Cattle And Interacts With Cyclin-Dependent Kinase 2 During Productive Infection, Yunquan Jiang, Ashfaque Hossain, Mariah Teresa Winkler, Todd Holt, Alan R. Doster, Clinton J. Jones
School of Veterinary and Biomedical Sciences: Faculty Publications
Despite productive viral gene expression in the peripheral nervous system during acute infection, the bovine herpesvirus 1 (BHV-1) infection cycle is blocked in sensory ganglionic neurons and consequently latency is established. The only abundant viral transcript expressed during latency is the latency-related (LR) RNA. LR gene products inhibit S-phase entry, and binding of the LR protein (LRP) to cyclin A was hypothesized to block cell cycle progression. This study demonstrates LRP is a nuclear protein which is expressed in neurons of latently infected cattle. Affinity chromatography indicated that LRP interacts with cyclin-dependent kinase 2 (cdk2)-cyclin complexes or cdc2-cyclin complexes in …
Pathogenicity Of An Enterotoxigenic Escherichia Coli Hemolysin (Hlya) Mutant In Gnotobiotic Piglets, Rodney A. Moxley, Emil M. Berberov, David H. Francis, Jun Xing, Mahtab Moayeri, Rodney A. Welsch, Diane R. Baker, Raul G. Barletta
Pathogenicity Of An Enterotoxigenic Escherichia Coli Hemolysin (Hlya) Mutant In Gnotobiotic Piglets, Rodney A. Moxley, Emil M. Berberov, David H. Francis, Jun Xing, Mahtab Moayeri, Rodney A. Welsch, Diane R. Baker, Raul G. Barletta
School of Veterinary and Biomedical Sciences: Faculty Publications
Pigs infected with hemolytic F4+ strains of enterotoxigenic Escherichia coli often develop septicemia secondary to intestinal infection. We tested the hypothesis that inactivation of hemolysin would reduce the ability of F4+ enterotoxigenic E. coli to cause septicemia in swine following oral inoculation. Inactivation of the hemolysin structural gene (hlyA) did not decrease the incidence of septicemia in the gnotobiotic piglet model.
Alternative Splicing Of The Latency-Related Transcript Of Bovine Herpesvirus 1 Yields Rnas Containing Unique Open Reading Frames, Laxminarayana R. Devireddy, Clinton J. Jones
Alternative Splicing Of The Latency-Related Transcript Of Bovine Herpesvirus 1 Yields Rnas Containing Unique Open Reading Frames, Laxminarayana R. Devireddy, Clinton J. Jones
School of Veterinary and Biomedical Sciences: Faculty Publications
The latency-related transcript (LRT) of bovine herpesvirus 1 (BHV-1) is the only abundant viral RNA detected during latency. A previous study (A. Hossain, L. M. Schang, and C. Jones, J. Virol. 69:5345–5352, 1995) concluded that splicing of polyadenylated [poly(A) +] and splicing of nonpolyadenylated [poly(A) -] LRT are different. In this study, splice junction sites of LRT were identified. In trigeminal ganglia of acutely infected calves (1, 7, or 15 days postinfection [p.i.]) or in latently infected calves (60 days p.i.), alternative splicing of poly(A) + LRT occurred. Productive viral gene expression in trigeminal ganglia is readily detected …
Polyadenylation Of Vesicular Stomatitis Virus Mrna Dictates Efficient Transcription Termination At The Intercistronic Gene Junctions, Leroy N. Hwang, Nathan Englund, Asit K. Pattnaik
Polyadenylation Of Vesicular Stomatitis Virus Mrna Dictates Efficient Transcription Termination At The Intercistronic Gene Junctions, Leroy N. Hwang, Nathan Englund, Asit K. Pattnaik
School of Veterinary and Biomedical Sciences: Faculty Publications
The intercistronic gene junctions of vesicular stomatitis virus (VSV) contain conserved sequence elements that are important for polyadenylation and transcription termination of upstream transcript as well as reinitiation of transcription of downstream transcript. To examine the role of the putative polyadenylation signal 3' AUACU75' at the gene junctions in polyadenylation and transcription termination, we constructed plasmids encoding antigenomic minireplicons containing one or two transcription units. In plasmid-transfected cells, analyses of the bicistronic minireplicon containing the wild-type or mutant intercistronic gene junctions for the ability to direct synthesis of polyadenylated upstream, downstream, and readthrough mRNAs showed that the AUACU …