CKS1B is a symbol for the gene, CDC28 protein kinase regulatory subunit 1B, in humans. Other names include: Cyclin-dependent kinases regulatory subunit 1; CKS-1; PNAS-16; PNAS-18; ckshs1. The encoded protein has an amino acid length of 79 and a mass of 9.7 kDa. CKS1B is a member of the CKS family. This gene shares homology with other species, including: Arabidopsis.