Department of Genetics, Queen Elizabeth Hospital, Adelaide, Australia.
Proliferating cell nuclear antigen (PCNA)/cyclin has been localized by in situ hybridization to the short arm of human chromosome 20 with a peak of grains over band 20p13. In addition, there were two strong secondary peaks of grains over 11p15.1 and Xp11.4 indicating the presence of two related genes in man.