WikiGenes - Prometaphase
RAF1-activated MEK1 is found on the Golgi apparatus in late prophase and is required for Golgi complex fragmentation in mitosis ... We show that Bub1 kinase activity is not required for phosphorylation of 3F3/2 epitopes at prophase/prometaphase, but is needed ... During prophase and prometaphase, preceding kinetochore-microtubule attachment, Bub3 localizes to kinetochores [24]. ... In vertebrate cells, arm cohesion is largely lost during prophase and prometaphase in order to facilitate sister chromatid ...