The Bovine Midkine yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Bovine Midkine applications are for cell culture, ELISA standard, and Western Blot Control. Bovine Midkine yeast-derived recombinant protein can be purchased in multiple sizes. Bovine Midkine Specifications: (Molecular Weight: 13.4 kDa) (Amino Acid Sequence: AKKKDKMKKG GPGSECAEWT WGPCTPSSKD CGVGFREGTC GAQTQRIRCR VPCNWKKEFG ADCKYKFETW GACDGGTGTK ARQGTLKKAR YNAQCQETIR VTKPYSSKTK AKAKAKKGKE KD (122)) (Gene ID: 280852). For research use only. Made in the USA