The stimulation of inositol phosphate generation in NIH-3T3 cells and a derived transformant overexpressing the p21N-ras gene (T15+ cells) was examined. Incubation with NaF in the presence of Al3+ leads to the generation of inositol phosphates in each cell type, though the response in the T15+ cells is significantly amplified. The effect of fluoroaluminate is dose- and time-dependent. No differences were observed in fluoroaluminate-stimulated cyclic AMP accumulation among the cell types. In another NIH-3T3-derived cell line that expresses the transforming lys61 mutant of N-ras, no amplification of fluoroaluminate-stimulated inositol phosphate generation is observed. These results provide support for the proposal that, in the T15 cell line, p21N-ras can act in a guanine nucleotide-binding regulatory protein (G-protein)-like manner.
Research Article| May 01 1989
Amplification of fluoroaluminate-stimulated inositol phosphate generation in a cell line overexpressing the p21N-ras gene
Biochem J (1989) 259 (3): 737–741.
- Views Icon Views
- Share Icon Share
M J O Wakelam; Amplification of fluoroaluminate-stimulated inositol phosphate generation in a cell line overexpressing the p21N-ras gene. Biochem J 1 May 1989; 259 (3): 737–741. doi: https://doi.org/10.1042/bj2590737
Download citation file: