PNAd is an alias for the gene, N-terminal asparagine amidase, in humans. Other names include: Protein N-terminal asparagine amidohydrolase; Protein NH2-terminal asparagine amidohydrolase; PNAA; Protein NH2-terminal asparagine deamidase; PNAD; Protein N-terminal Asn amidase; Protein N-terminal asparagine amidase; Protein NTN-amidase; Protein N-terminal asparagine amidohydrolase . The encoded protein is an enzyme with an amino acid length of 310 and a mass of 34.7 kDa. Other isoforms may exist. This gene shares homology with other species, including: Rat, Zebrafish, Frog, Chicken.