J. Biol. Chem., Vol. 258, Issue 4, 2126-2129, Feb, 1983
Evidence that the Rous sarcoma virus transforming gene product is associated with glycerol kinase activity
Y Graziani, E Erikson and RL Erikson
This communication provides biochemical, immunological, and genetic
evidence that pp60src, the Rous sarcoma virus transforming gene product, is
associated with glycerol kinase activity. Our investigations demonstrated
that the compound phosphorylated by pp60src or by glycerol kinase (EC
2.7.1.30) from Candida mycoderma share the same electrophoretic and
chromatographic mobilities. The glycerol kinase and protein kinase
activities of pp60src were inhibited similarly by preincubation with immune
IgG. Both activities were reduced 6-9-fold in pp60src preparations derived
by immunoaffinity chromatography from cells which were infected with NY68,
a temperature- sensitive transformation mutant of Rous sarcoma virus. The
thermolability at 41 degrees C of the glycerol kinase activity of pp60src
from the mutant virus-infected cells was greater (t/2 = 1.3 min) than the
same activity in pp60src preparations from wild type virus-infected cells
(t/2 = 4.8 min).