Purity ~76%. Human phosphoserine aminotransferase 1 (PSAT1), also known as EPIP, amino-acids 2 - 370 (end) (GenBank Accession No. NM_058179) with N-terminal GST tag, MW = 67.1kD, expressed in an E. coli expression system. Source: Recombinant protein corresponding to aa2-370 from human PSAT1 at N-terminal, fused to GST tag expressed in E.coli. Molecular Weight: ~67.1kD Applications: Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.