NA Protein (Native, H12N5)

Measured by its ability to cleave a fluorogenic substrate, 2’- (4-Methylumbelliferyl) -α-D-N-acetylneuraminic acid. One unit is defined as the amount of enzyme required to cleave 1 nmole of 2'- (4-Methylumbelliferyl) -α-D-N-acetylneuraminic acid per minute at pH 7.5 at 37°C.

The recombinant Influenza virus A (A/green-winged teal/ALB/199/1991) (H12N5) ) Neuraminidase consists of 473 amino acids and predicts a molecular mass of 52.1 kDa.