Identification of a human rasGAP-related protein containing calmodulin-binding motifs.

Abstract excerpt

Conversion of active GTP-bound Ras to its inactive GDP-bound form is catalyzed by GTPase-activating proteins (GAPs). Two mammalian Ras-specific GAPs, p120GAP and neurofibromin, the product of the NF1 tumor suppressor gene, have been previously described. We report here the identification of a new human cDNA clone, IQGAP1, which predicts a 1657-amino acid protein that displays extensive sequence similarity to the...

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