"MBK-2 also phosphorylates MEI-2 at T32, S68, and S86 but only if MEI-1 is present, indicating that MEI-1 is essential for MBK-2-dependent MEI-2 phosphorylation."
In wild-type, MEI-1/MEI-2 complex localizes to the spindle and chromosomes during meiosis and degrades after meiosis. In cul-3(RNAi) embryos, endogenous MEI-1 strongly accumulated.
"C. elegans MEL-26, MEI-1 and MEI-2 formed a readily detectable ternary complex (Fig. 4c), providing biochemical evidence to suggest that MEL-26 interacts directly with MEI-1."