ArticleVirus genes1998
A single amino-acid substitution in gag p19 protein (MA) of Rous sarcoma virus suppresses virus production from infected cells.
Article in Virus genes, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Gag p19 protein (MA) of the transformation-defective Rous sarcoma virus mutant, tdPH2010, has a point mutation at nucleotide 376 (G to A) that results in an amino-acid change at residue 126 of p19 (Glu to Lys). This single amino-acid change is the cause of the aberrantly fast migration of this protein on SDS-polyacrylamide gels. To study the biological significance of the mutation, we introduced this mutation into a transformation-defective derivative of the molecularly cloned Rous sarcoma virus, SRA2, and examined its effect on virus replication. The virus possessing the mutation in its gag p19 gene had 50% slower replication as measured by the amount of reverse transcriptase as well as gag p27 protein (CA) in the culture media. Glu at position 126 appears to be important for efficient production of Rous sarcoma virus in vitro.
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