Purity ~95%. Human nitric oxide synthase 2 (NOS2) or inducible NOS (iNOS) (GenBank Accession No. NM_000625), amino acids 2 - 1153 (end) with N-terminal His-Flag tag, MW= 133kD, expressed in a baculovirus infected Sf9 cell expression system. Source: Recombinant protein corresponding to aa2-1153 from human NOS2 at N-terminal, fused to His-Flag tag expressed in baculovirus infected Sf9. Molecular Weight: ~133kD Application: Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.