CrkII, or V-crk avian sarcoma virus CT10 oncogene homolog, is a human gene encoded by CRK. It may also be known as: Adapter molecule crk; Proto-oncogene c-Crk; CRKII; p38. The encoded protein has an amino acid length of 304 and a mass of 33.8 kDa. CrkII is a member of the CRK family. Homologs of this gene exist in other organisms, including: Fly, Mouse, Rat, Arabidopsis, Zebrafish, Frog, Chicken.