Analysis of the Genome Structure of Tobacco Rattle Virus Strain PSG
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The sequence of the 3'-terminal 2077 nucleotides of genomic RNA 1 and the complete sequence of genomic RNA 2 of tobacco rattle virus (TRV, strain PSG) has been deduced. RNA 2 (1905 nucleotides) contains a single open reading frame for the viral coat protein (209 amino acids), flanked by 5'- and 3'-noncoding regions of 570 and 708 nucleotides, respectively. A subgenomic RNA (RNA 4) was found to lack the 5'-terminal 474 nucleotides of RNA 2 and is the putative messenger for coat protein. The deduced RNA 1 sequence contains the 3'-terminal part of a reading frame that probably corresponds to the TRV 170K protein and reading frames for a 29K protein and a 16K protein. Proteins encoded by the first two reading frames show significant amino acid sequence homology with corresponding proteins encoded by tobacco mosaic virus. Subgenomic RNAs 3 (1.6 kb) and 5 (0.7 kb) were identified as the putative messengers for the 29K and 16K proteins, respectively. At their 3'-termini all PSG-RNAs have an identical sequence of 497 nucleotides; at the 5'-termini homology is limited to 5 to 10 bases.
Mongkolsiriwattana C, Zhou J, Ng J Sci Rep. 2016; 6:34482.
PMID: 27694962 PMC: 5046102. DOI: 10.1038/srep34482.
Meshi T, Watanabe Y, Saito T, Sugimoto A, Maeda T, Okada Y EMBO J. 1987; 6(9):2557-63.
PMID: 16453793 PMC: 553674. DOI: 10.1002/j.1460-2075.1987.tb02544.x.
Gene expression from viral RNA genomes.
Maia I, Seron K, Haenni A, Bernardi F Plant Mol Biol. 1996; 32(1-2):367-91.
PMID: 8980488 DOI: 10.1007/BF00039391.
Hernandez C, Carette J, Brown D, Bol J J Virol. 1996; 70(8):4933-40.
PMID: 8763997 PMC: 190444. DOI: 10.1128/JVI.70.8.4933-4940.1996.
Leathers V, TANGUAY R, Kobayashi M, Gallie D Mol Cell Biol. 1993; 13(9):5331-47.
PMID: 8355685 PMC: 360232. DOI: 10.1128/mcb.13.9.5331-5347.1993.