– LAP3 (Leucine Aminopeptidase 3) is a Protein Coding gene. 2 alternative initiation human isoforms have been reported. LAP3, belonging to the peptidase M17 family, has been proved to catalyze the hydrolysis of leucine residues. It catalyzes the removal of unsubstituted N-terminal amino acids from various peptides and is presumably involved in the processing and regular turnover of intracellular proteins. Leucine aminopeptidases are involved in many pathological disorders and regulate cell proliferation, invasion, and/or angiogenesis of tumors. A recent study showed that LAP3 is highly expressed in several malignant and affects tumor angiogenesis. LAP3 is widely expressed in the appendix, lymph node, and other tissues. Diseases associated with LAP3 include Bacterial Vaginosis and Trichomoniasis.