In a new study of organelle biogenesis from the laboratory of Gregory Rogers, PhD, former CMM student and postdoc Tiffany McLamarrah and colleagues characterize an early step in centriole duplication. They show that Polo-like kinase hyperphosphorylates the assembly factor Ana2, which increases the affinity of Ana2 for the G-box domain of Sas4, promoting Ana2’s accumulation at the procentriole and, consequently, daughter centriole formation. PMID: 31841145
