Serpina3n (serine or cysteine peptidase inhibitor, clade A, member 3N), also known as A0091, is a serine protease inhibitor composed of a singular glycopeptide chain.
Serpina3n (serine or cysteine peptidase inhibitor, clade A, member 3N), also known as A0091, is a serine protease inhibitor composed of a singular glycopeptide chain. Variants of this gene have been associated with Alzheimer's disease, in particular when combined with the apolipoprotein E variant, APOE4. Low levels of the Serpina3 protein are implicated in liver diseases including hepatitis.