Biography
University of California Riverside - Science
Professor at University of California-Riverside
A.L.N.
Rao
Riverside, California
Experienced Professor with a demonstrated history of working in the higher education industry. Skilled in Molecular Virology, host-viral pathogen interactions, Bioinformatics, Life Sciences, Microscopy, Genetics, and Cell Biology. Strong education professional with a Doctor of Philosophy (Ph.D.) focused in Plant Pathology from Waite Institute, University of Adelaide.
Publications
Integration of replication and assembly of infectious virions in plant RNA viruses
Current Opinion in Virology
Integration of replication and assembly of infectious virions in plant RNA viruses
Current Opinion in Virology
Functional analysis of the N-terminal basic motif of a eukaryotic satellite RNA virus capsid protein in replication and packaging
Scientific Reports
Efficient replication and assembly of virus particles are integral to the establishment of infection. In
addition to the primary role of the capsid protein (CP) in encapsidating the RNA progeny, experimental evidence on positive sense single-stranded RNA viruses suggests that the CP also regulates RNA synthesis. Here, we demonstrate that replication of Satellite tobacco mosaic virus (STMV) is controlled by the cooperative interaction between STMV CP and the helper virus (HV) Tobacco mosaic virus (TMV) replicase. We identified that the STMV CP-HV replicase interaction requires a positively charged residue at the third position (3R) in the N-terminal 13 amino acid (aa) motif. Far-Northwestern blotting showed that STMV CP promotes binding between HV-replicase and STMV RNA. An STMV CP variant having an arginine to alanine substitution at position 3 in the N-terminal 13aa motif abolished replicase-CP binding. The N-terminal 13aa motif of the CP bearing alanine substitutions for positively charged residues located at positions 5, 7, 10 and 11 are defective in packaging full-length STMV, but can package a truncated STMV RNA lacking the 3′ terminal 150 nt region. These findings provide insights into the mechanism underlying the regulation of STMV replication and packaging.
Integration of replication and assembly of infectious virions in plant RNA viruses
Current Opinion in Virology
Functional analysis of the N-terminal basic motif of a eukaryotic satellite RNA virus capsid protein in replication and packaging
Scientific Reports
Efficient replication and assembly of virus particles are integral to the establishment of infection. In
addition to the primary role of the capsid protein (CP) in encapsidating the RNA progeny, experimental evidence on positive sense single-stranded RNA viruses suggests that the CP also regulates RNA synthesis. Here, we demonstrate that replication of Satellite tobacco mosaic virus (STMV) is controlled by the cooperative interaction between STMV CP and the helper virus (HV) Tobacco mosaic virus (TMV) replicase. We identified that the STMV CP-HV replicase interaction requires a positively charged residue at the third position (3R) in the N-terminal 13 amino acid (aa) motif. Far-Northwestern blotting showed that STMV CP promotes binding between HV-replicase and STMV RNA. An STMV CP variant having an arginine to alanine substitution at position 3 in the N-terminal 13aa motif abolished replicase-CP binding. The N-terminal 13aa motif of the CP bearing alanine substitutions for positively charged residues located at positions 5, 7, 10 and 11 are defective in packaging full-length STMV, but can package a truncated STMV RNA lacking the 3′ terminal 150 nt region. These findings provide insights into the mechanism underlying the regulation of STMV replication and packaging.
Functionalityofhostproteinsin Cucumber mosaicvirus replication: GAPDHisobligatorytopromoteinteractionbetween replication-associatedproteins
Virology
Here, we evaluated the role of two host proteins, a Bromo domain containing RNA binding protein(BRP1)and Glyceraldehyde3-phosphatedehydrogenase(GAPDH),in the replication of Cucumber mosaic virus (CMV). LC-MS/MS analysis of host/viral proteins pulldown against BRP1 from CMV-infected plants co-infiltrated with BRP1-FLAG agroconstruct identified that BRP1specifically interacts with a ten amino acid motif (843-SPQDVVPLVR-852) encompassing the helicase domain of replicase proteinp1a.The interaction between BRP1and p1a was subsequently confirmed using a BiFC assay. Among fourteen other host
proteins identified to interact with BRP1 during CMV infection, six were found to block accumulation of viral progeny in Arabidopsisthaliana lines defective in each of these host proteins.Additional BiFC assays followed by trans-complementation assays identified that plant lines defective in the expression of GAPDH blocked CMV replication by interfering with p1a:p2a interaction. Distinct roles of BRP1and GAPDH in the replication of CMV are discussed.
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Possible Matching Profiles
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Visiting Assistant Professor
Hunter College - Hunter College
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Adjunct Lecturer
Kingsborough Community College - Community College (kingsboro)
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Medgar Evers College - Medgar Evers Adj
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Stony Brook University - [email protected]
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SUNY Oswego - [email protected]
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SUNY Plattsburgh - [email protected]
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SUNY Polytechnic Institute - Suny Polytechnic Institute
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Oklahoma State University - Oklahoma State University
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Teaching Assistant-Cbata
University Of Central Oklahoma - Univ. Of Central Okla.
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Lecturer
Texas A&M University - Texas A&m University
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Graduate Instructor Assistant
Texas State University - Texas State University
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Professor
Texas State University - Texas State University
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Asst Dean, College
Texas State University - Texas State University
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Research Associate Professor
Texas Tech University - Texas Tech University
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Assistant Professor
Texas Tech University Health Sciences Center In El Paso - Texas Tech University Health Sciences Center In El
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Associate Professor
University Of North Texas - University Of North Texas
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Assistant Professor
University Of Texas At Arlington - University Of Texas At Arlington
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Student Associate
University Of Texas At Arlington - University Of Texas At Arlington
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Research Scientist
University Of Texas Health Science Center Houston - University Of Texas Health Science Center Houston
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Assistant Professor
University Of Texas Southwestern Medical Center - University Of Texas Southwestern Medical Center
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University Of Washington - University Of Washington