3q21-q27 HGNC:7154 MIM.120520
Monday 1 November 2010
MME encodes a common acute lymphocytic leukemia antigen CD10 (Calla) that is an important cell surface marker in the diagnosis of human acute lymphocytic leukemia (ALL).
CD10 protein is present on leukemic cells of pre-B phenotype, which represent 85% of cases of ALL. This protein is not restricted to leukemic cells, however, and is found on a variety of normal tissues.
CD10 is a neutral endopeptidase that cleaves peptides at the amino side of hydrophobic residues and inactivates several peptide hormones including glucagon, enkephalins, substance P, neurotensin, oxytocin, and bradykinin.
This gene, which encodes a 100-kD type II transmembrane glycoprotein, exists in a single copy of greater than 45 kb. The 5’ untranslated region of this gene is alternatively spliced, resulting in four separate mRNA transcripts. The coding region is not affected by alternative splicing.
See also: CD10 (Calla)