Two Separation-of-Function Isoforms of Human TPP1 Dictate Telomerase Regulation in Somatic and Germ Cells
Summary: Telomerase replicates chromosome ends in germ and somatic stem cells to facilitate their continued proliferation.Telomerase action depends on the telomeric protein TPP1, which recruits telomerase to telomeres and facilitates processive DNA synthesis.Here, we identify separation-of-function long (TPP1-L) and short (TPP1-S) isoforms of TPP1