Centromeres and the associated kinetochores are involved in essential aspec
ts of chromosome transmission, Recent advances have included the identifica
tion and understanding of proteins that have a pivotal role in centromere s
tructure, kinetochore formation, and the coordination of chromosome inherit
ance with the cell cycle in several organisms. A picture is beginning to em
erge of the centromere-kinetechore as a complex and dynamic structure with
conservation of function at the protein level across diverse species.