CC-465 imp3 mt+

Source: From Ursula Goodenough, 1978

Comment: Cells with the imp3 mutation agglutinate strongly with partners of opposite mating type, but the initial adhesion is lost, cell walls are not shed, and gamete fusion is rare. Saito et al. have shown this mutant to be defective in production of cAMP in response to flagellar adhesion.