The protein encoded by this gene is a negative regulator of the cell cycle and was the first tumor suppressor gene found. The encoded protein also stabilizes constitutive heterochromatin to maintain the overall chromatin structure. The active, hypophosphorylated form of the protein binds transcription factor E2F1. Defects in this gene are a cause of childhood cancer retinoblastoma (RB), bladder cancer, and osteogenic sarcoma. (RefSeq)
Formulation
Antibody in PBS with 0.02% sodium azide and 50% glycerol
Host
Rabbit
Immunogen Region
A synthetic peptide specific to human Retinoblastoma / Rb was used as the immunogen for the Rb1 antibody.