UNSPECIFIED (2005) Mutational analysis of the avian pneumovirus conserved transcriptional gene start sequence identifying critical residues. JOURNAL OF GENERAL VIROLOGY, 86 (Part 12). pp. 3343-3347. doi:10.1099/vir.0.81352-0

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Abstract

Seven of the eight genes in the avian pneumovirus (APV) genome contain a conserved 9 nt transcriptional start sequence with the virus large Q polymerase gene differing from the consensus at three positions. The sequence requirements of the APV transcriptional gene start sequence were investigated by generating a series of mutations in which each of the nine conserved bases was mutated to each of the other three possible nucleoticles in a minigenome containing two reporter genes. The effect of each mutation was assessed by measuring the relative levels of expression from the altered and unaltered gene start sequences. Mutations at positions 2, 7 and 9 significantly reduced transcription levels while alterations to position 5 had little effect. The L gene start sequence directed transcription at levels approximately 50% below that of the consensus gene start sequence. These data suggest that there are common features in pneumovirus transcriptional control sequences.

Item Type:	Journal Article
Subjects:	T Technology > TP Chemical technology Q Science > QR Microbiology > QR355 Virology
Journal or Publication Title:	JOURNAL OF GENERAL VIROLOGY
Publisher:	SOC GENERAL MICROBIOLOGY
ISSN:	0022-1317
Official Date:	December 2005
Dates:	Date Event December 2005 UNSPECIFIED
Volume:	86
Number:	Part 12
Number of Pages:	5
Page Range:	pp. 3343-3347
DOI:	10.1099/vir.0.81352-0
Publication Status:	Published

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