CR3, or Teratocarcinoma-derived growth factor 1 pseudogene 3, is a human gene encoded by TDGF1P3. It may also be known as: Putative teratocarcinoma-derived growth factor 3; Epidermal growth factor-like cripto protein CR3; Cripto-3 growth factor; CR-3; CRIPTO-3; CRIPTO3; TDGF3. The encoded protein has an amino acid length of 188 and a mass of 21.2 kDa. Homologs of this gene exist in other organisms, including: Frog.