CDKN4/p27(Kip1) is a cyclin-dependent kinase (Cdk) inhibitor implicate
d in G1 phase arrest, which negatively regulates G1 phase progression
in response to TGF beta, and might represent a tumor suppressor gene.
We report here the chromosomal assignment of the human CDKN4 gene to c
hromosome 12p12.3 in close proximity to highly polymorphic microsatell
ite markers.