Immunogen sequence: PSVLALSIIA LEIQAQKCVE LTEGIECLQK HSKINGRDLT FWQELVSKCL TEYSSNKCSK PNVQKLKWIV SGRTARQLKH SYYRITHLPT IPEMVP; Positive Samples: Mouse kidney, Mouse skeletal muscle; Cellular Location: Nucleus. Cyclins are the regulatory subunits of Cdc2