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. 1989 Apr;8(4):1105–1110. doi: 10.1002/j.1460-2075.1989.tb03480.x

A C-terminal domain of GAP is sufficient to stimulate ras p21 GTPase activity.

M S Marshall 1, W S Hill 1, A S Ng 1, U S Vogel 1, M D Schaber 1, E M Scolnick 1, R A Dixon 1, I S Sigal 1, J B Gibbs 1
PMCID: PMC400921  PMID: 2545441

Abstract

The cDNA for bovine ras p21 GTPase activating protein (GAP) has been cloned and the 1044 amino acid polypeptide encoded by the clone has been shown to bind the GTP complexes of both normal and oncogenic Harvey (Ha) ras p21. To identify the regions of GAP critical for the catalytic stimulation of ras p21 GTPase activity, a series of truncated forms of GAP protein were expressed in Escherichia coli. The C-terminal 343 amino acids of GAP (residues 702-1044) were observed to bind Ha ras p21-GTP and stimulate Ha ras p21 GTPase activity with the same efficiency (kcat/KM congruent to 1 x 10(6) M-1 s-1 at 24 degrees C) as GAP purified from bovine brain or full-length GAP expressed in E. coli. Deletion of the final 61 amino acid residues of GAP (residues 986-1044) rendered the protein insoluble upon expression in E. coli. These results define a distinct catalytic domain at the C terminus of GAP. In addition, GAP contains amino acid similarity with the B and C box domains conserved among phospholipase C-II, the crk oncogene product, and the non-receptor tyrosine kinase oncogene products. This homologous region is located in the N-terminal half of GAP outside of the catalytic domain that stimulates ras p21 GTPase activity and may constitute a distinct structural or functional domain within the GAP protein.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Barbacid M. ras genes. Annu Rev Biochem. 1987;56:779–827. doi: 10.1146/annurev.bi.56.070187.004023. [DOI] [PubMed] [Google Scholar]
  2. De Vendittis E., Vitelli A., Zahn R., Fasano O. Suppression of defective RAS1 and RAS2 functions in yeast by an adenylate cyclase activated by a single amino acid change. EMBO J. 1986 Dec 20;5(13):3657–3663. doi: 10.1002/j.1460-2075.1986.tb04696.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Field J., Broek D., Kataoka T., Wigler M. Guanine nucleotide activation of, and competition between, RAS proteins from Saccharomyces cerevisiae. Mol Cell Biol. 1987 Jun;7(6):2128–2133. doi: 10.1128/mcb.7.6.2128. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Gibbs J. B., Schaber M. D., Allard W. J., Sigal I. S., Scolnick E. M. Purification of ras GTPase activating protein from bovine brain. Proc Natl Acad Sci U S A. 1988 Jul;85(14):5026–5030. doi: 10.1073/pnas.85.14.5026. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Gibbs J. B., Sigal I. S., Poe M., Scolnick E. M. Intrinsic GTPase activity distinguishes normal and oncogenic ras p21 molecules. Proc Natl Acad Sci U S A. 1984 Sep;81(18):5704–5708. doi: 10.1073/pnas.81.18.5704. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Katan M., Kriz R. W., Totty N., Philp R., Meldrum E., Aldape R. A., Knopf J. L., Parker P. J. Determination of the primary structure of PLC-154 demonstrates diversity of phosphoinositide-specific phospholipase C activities. Cell. 1988 Jul 15;54(2):171–177. doi: 10.1016/0092-8674(88)90549-1. [DOI] [PubMed] [Google Scholar]
  7. Kataoka T., Broek D., Wigler M. DNA sequence and characterization of the S. cerevisiae gene encoding adenylate cyclase. Cell. 1985 Dec;43(2 Pt 1):493–505. doi: 10.1016/0092-8674(85)90179-5. [DOI] [PubMed] [Google Scholar]
  8. Kaziro Y. The role of guanosine 5'-triphosphate in polypeptide chain elongation. Biochim Biophys Acta. 1978 Sep 21;505(1):95–127. doi: 10.1016/0304-4173(78)90009-5. [DOI] [PubMed] [Google Scholar]
  9. Kyte J., Doolittle R. F. A simple method for displaying the hydropathic character of a protein. J Mol Biol. 1982 May 5;157(1):105–132. doi: 10.1016/0022-2836(82)90515-0. [DOI] [PubMed] [Google Scholar]
  10. Marshall M. S., Gibbs J. B., Scolnick E. M., Sigal I. S. An adenylate cyclase from Saccharomyces cerevisiae that is stimulated by RAS proteins with effector mutations. Mol Cell Biol. 1988 Jan;8(1):52–61. doi: 10.1128/mcb.8.1.52. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Marshall M. S., Gibbs J. B., Scolnick E. M., Sigal I. S. Regulatory function of the Saccharomyces cerevisiae RAS C-terminus. Mol Cell Biol. 1987 Jul;7(7):2309–2315. doi: 10.1128/mcb.7.7.2309. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Matsumura P., Rydel J. J., Linzmeier R., Vacante D. Overexpression and sequence of the Escherichia coli cheY gene and biochemical activities of the CheY protein. J Bacteriol. 1984 Oct;160(1):36–41. doi: 10.1128/jb.160.1.36-41.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Mayer B. J., Hamaguchi M., Hanafusa H. A novel viral oncogene with structural similarity to phospholipase C. Nature. 1988 Mar 17;332(6161):272–275. doi: 10.1038/332272a0. [DOI] [PubMed] [Google Scholar]
  14. Nishizuka Y. The molecular heterogeneity of protein kinase C and its implications for cellular regulation. Nature. 1988 Aug 25;334(6184):661–665. doi: 10.1038/334661a0. [DOI] [PubMed] [Google Scholar]
  15. Raymond V. W., Parsons J. T. Identification of an amino terminal domain required for the transforming activity of the Rous sarcoma virus src protein. Virology. 1987 Oct;160(2):400–410. doi: 10.1016/0042-6822(87)90011-0. [DOI] [PubMed] [Google Scholar]
  16. Sadowski I., Stone J. C., Pawson T. A noncatalytic domain conserved among cytoplasmic protein-tyrosine kinases modifies the kinase function and transforming activity of Fujinami sarcoma virus P130gag-fps. Mol Cell Biol. 1986 Dec;6(12):4396–4408. doi: 10.1128/mcb.6.12.4396. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Sigal I. S., Smith G. M., Jurnak F., Marsico-Ahern J. D., D'Alonzo J. S., Scolnick E. M., Gibbs J. B. Molecular approaches towards an anti-ras drug. Anticancer Drug Des. 1987 Oct;2(2):107–115. [PubMed] [Google Scholar]
  18. Sigal I. S. The ras oncogene. A structure and some function. Nature. 1988 Apr 7;332(6164):485–486. doi: 10.1038/332485a0. [DOI] [PubMed] [Google Scholar]
  19. Smith M. R., DeGudicibus S. J., Stacey D. W. Requirement for c-ras proteins during viral oncogene transformation. Nature. 1986 Apr 10;320(6062):540–543. doi: 10.1038/320540a0. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Stahl M. L., Ferenz C. R., Kelleher K. L., Kriz R. W., Knopf J. L. Sequence similarity of phospholipase C with the non-catalytic region of src. Nature. 1988 Mar 17;332(6161):269–272. doi: 10.1038/332269a0. [DOI] [PubMed] [Google Scholar]
  21. Suh P. G., Ryu S. H., Moon K. H., Suh H. W., Rhee S. G. Cloning and sequence of multiple forms of phospholipase C. Cell. 1988 Jul 15;54(2):161–169. doi: 10.1016/0092-8674(88)90548-x. [DOI] [PubMed] [Google Scholar]
  22. Trahey M., McCormick F. A cytoplasmic protein stimulates normal N-ras p21 GTPase, but does not affect oncogenic mutants. Science. 1987 Oct 23;238(4826):542–545. doi: 10.1126/science.2821624. [DOI] [PubMed] [Google Scholar]
  23. Vogel U. S., Dixon R. A., Schaber M. D., Diehl R. E., Marshall M. S., Scolnick E. M., Sigal I. S., Gibbs J. B. Cloning of bovine GAP and its interaction with oncogenic ras p21. Nature. 1988 Sep 1;335(6185):90–93. doi: 10.1038/335090a0. [DOI] [PubMed] [Google Scholar]
  24. Wagner P., Molenaar C. M., Rauh A. J., Brökel R., Schmitt H. D., Gallwitz D. Biochemical properties of the ras-related YPT protein in yeast: a mutational analysis. EMBO J. 1987 Aug;6(8):2373–2379. doi: 10.1002/j.1460-2075.1987.tb02514.x. [DOI] [PMC free article] [PubMed] [Google Scholar]

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