Human adult T cell leukemia/lymphoma virus protein
This family of proteins is found in viruses. Proteins in this family are approximately 100 amino acids in length. p12I binds to the immature beta and gamma-c chains of the interleukin-2 receptor retarding their translocation to the plasma membrane. p12I forms dimers which bind to these chains.
Jiyao W et al.(2023). "The conserved domain database in 2023.",