Alpha-1-Antitrypsin (a1AT)

SERPINA1; SPAAT; A1-AT; PI; Serpin Peptidase Inhibitor,Clade A(Alpha-1 Antiproteinase/AntiTrypsin)Member 1; Alpha-1 protease inhibitor; Short peptide from AAT; Serpin A1

SPN	V142
HGNC	8941
MGI	891971
PubMed	17003475
RGD	3326
UniProt	P01009
Wiki	A1AT

• alpha1-antitrypsin, an acute phase protein, is the prototypic member of the serpin super family and a major inhibitor of serine proteases. As an acute phase protein, alpha 1-antitrypsin is thought to play an important role in limiting host tissue injury at sites of inflammation.

• A1AT is a 52-kDa serpin (serine protease inhibitor), and, in medicine, it is considered the most prominent serpin; the terms alpha 1-antitrypsin and protease inhibitor (P_i) are often used interchangeably.Like all serine protease inhibitors, A1AT has a characteristic secondary structure of beta sheets and alpha helices. Mutations in these areas can lead to non-functional proteins that can polymerise and accumulate in the liver (infantile hepatic cirrhosis).

Reference

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