The antibody MEM-78 reacts with an extracellular epitope CD10 antigen (CALLA - Common acute lymphatic leukemia antigen), a 100 kDa type II integral membrane protein.
Membrane metalloendopeptidase,CD10 (neutral endopeptidase –, NEP, common acute lymphocytic leukemia antigen –, CALLA, membrane metallo-endopeptidase –, MME, enkefalinase) is a 100- kDa cell surface zinc metalloprotease, cleaving peptide bonds on the N-terminus of hydrophobic amino acids and inactivating multiple physiologically active peptids. CD10 is expressed on various normal cell types, including lymphoid precursor cells, germinal center B lymhocytes, and some epithelial cells, and its expression level serves as a marker for diagnostics of many carcinomas. CD10 is also a differentiation antigen for early B-lymphoid progenitors in the B-cell differentiation pathway and has a key role in regulation of growth, differentiation and signal transduction of many cellular systems.,CALLA, Neprilysin, Neutral endopeptidase, Enkephalinase, Atriopeptidase, MME