The Canine Cystatin C yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Canine Cystatin C applications are for cell culture, ELISA standard, and Western Blot Control. Canine Cystatin C yeast-derived recombinant protein can be purchased in multiple sizes. Canine Cystatin C Specifications: (Molecular Weight: 13.8 kDa) (Amino Acid Sequence: ASPGAGRRGS RPGAVGGAVD ADVGEEGVQQ ALDFAVREYN RASNDAYHSR ALRVLRARKQ VVSGMNYFLE VEIGRTRCTK SQPNLDNCPF HDQPHLMRKT LCSFQIYTVP WLGKTSLVKS SCQDV). For research use only. Made in the USA.