Alpha-1-Antitrypsin

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Alpha-1-antitrypsin (418 aa, ~47 kDa) is encoded by the human SERPINA1 gene. This protein plays a role in regulation of proteolysis.

**Synonyms:** - AAT - Alpha-1 Antitrypsin - Alpha-1 Protease Inhibitor - Alpha-1-Antiproteinase - Alpha1AT - Anti-Elastase - PI - Protease Inhibitor 1 - SERPINA1 - Serine (or Cysteine) Proteinase Inhibitor, Clade A, Member 1 - Serpin A1 - Serpin Family A Member 1 - Serpin Peptidase Inhibitor Clade A Member 1