Recombinat Protein,Human Cystatin S CST4 Protein, His Tag,Human Cystatin S, His Tag (CS4-H5223) is expressed from human 293 cells ( HEK293). It contains AA Ser 21 - Ala 141 (Accession AAH65714).This protein carries a polyhistidine tag at the C-ter te 1 * 100 µG