abnormal actin fusion focus assembly ectopic actin fusion focus assembly A cellular process phenotype in which actin fusion focus assembly takes place in one or more abnormal locations. An actin fusion focus normally forms during mating at the site where the two cells will fuse. Ectopic fusion foci often form near actin cortical patches, and may also have abnormal composition. FYPO:0007097 mislocalized actin fusion focus assembly midori ectopic actin fusion focus formation 2019-10-11T12:12:09Z