GTPase-activating protein of the Ras superfamily; acts primarily on Sec4p, localizes to the bud site and bud tip; msb3 msb4 double mutation causes defects in secretion and actin organization; similar to the TBC-domain Tre2 oncogene; MSB4 has a paralog, MSB3, that arose from the whole genome duplication; human homolog USP6NL can complement yeast msb3 msb4 double null mutant [Source:SGD;Acc:S000005472]

Chromosome XV: 106,710-108,188 forward strand.

R64-1-1:BK006948.2

This gene has 1 transcript (splice variant), 255 orthologues, 7 paralogues and is a member of 1 Ensembl protein family.

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