GO:0070545

A protein complex that is involved in coordinating ribosome biogenesis with cell cycle progression. In human, it is composed of Pes1, Bop1, and WDR12; in Saccharomyces the proteins are known as Nop7p, Erb1 and Ytm1 respectively. [GOC:ab, GOC:mah, PMID:16043514, PMID:17353269]