GTPase activating protein fragments

Chemistry: natural resins or derivatives; peptides or proteins; – Peptides of 3 to 100 amino acid residues – 15 to 23 amino acid residues in defined sequence

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530350, C07K 704

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active

057635730

ABSTRACT:
Peptides, that inhibit GAP stimulated ras p21 hydrolysis of GTP; peptides that mediate dissociation of GDP from ras p21-GTP complex; and antibodies to the peptides are described. These peptides are useful as cancer diagnostics and therapeutics, particularly to detect cancer cells with an over expression of normal or oncogenic ras p21 protein and to treat cancer caused by ras oncogene. Methods for assaying products of oncogenes using the described peptides and antibodies are also disclosed. Method for treating cancer caused by ras oncogenes is also disclosed.

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