{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"CD5 is a glycoprotein monomer with an MW of 67 kDa belonging to the scavenger receptor cysteine-rich (SRCR) family of extracellular domain-like structures. It possesses a large cytoplasmic domain suitable for signal transduction. CD5 is a T-cell antigen present in a range of neoplastic B-cells. It is also expressed in T-lymphocyte subsets and is modulated during cellular activation."}]}]}