– Carboxypeptidase that catalyzes the release of a C-terminal amino acid, but has little or no action with -Asp, -Glu, -Arg, -Lys or -Pro. Catalyzes the conversion of leukotriene C4 to leukotriene F4 via the hydrolysis of an amide bond. Carboxypeptidase A1 Protein, Rat, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 39.6 kDa and the accession number is P00731.