In the direct inhibition model, the cytosolic Mitotic Checkpoint Complex, consisting of hBUBR1, hBUB3, Cdc20 and Mad2, directly inhibits APC/C by binding to it.
Sudakin, V, Chan, GK, Yen, TJ
Chan, GK, Yen, TJ
Fang, G, Yu, H, Kirschner, MW
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