These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Molecular approaches towards an anti-ras drug.
    Author: Sigal IS, Smith GM, Jurnak F, Marsico-Ahern JD, D'Alonzo JS, Scolnick EM, Gibbs JB.
    Journal: Anticancer Drug Des; 1987 Oct; 2(2):107-15. PubMed ID: 3130069.
    Abstract:
    The ras proteins have intrinsic biochemical properties that are similar to those of the guanine nucleotide binding regulatory proteins (G-proteins). Increased oncogenic potential results from amino acid substitutions that, by altering either the intrinsic GTPase activity or the GDP/GTP exchange rate, would lead to an increase in the level of the ras-GTP complex. The functional similarity between the ras oncogene proteins and the G-proteins suggests several mechanisms for an anti-ras drug. Anti-ras drugs could act either by retarding the formation of the biologically active GTP complex of the protein or by preventing the ras protein from interacting with its yet-to-be-identified target. Mutagenesis studies of Harvey (Ha) ras have identified the residues involved in GDP and GTP binding, the residues that constitute the epitope for the neutralizing antibody Y13-259 (63-73) and a region (32-40) that is required for effector action. Computer modeling combined with immunological characterization has suggested some structural properties of this putative 'effector' region.
    [Abstract] [Full Text] [Related] [New Search]