Centromere protein C (CENP-C), a human centromere autoantigen, is a component of the inner kinetochore plate. CENP-C is required for maintaining proper kinetochore size and a timely transition to anaphase. In this study using fluorescence in situ hybridization to metaphase chromosomes, the human CENP-C gene (CENPC) was mapped on chromosome 4, region q13-->q21.