The Chicken 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. Chicken Midkine applications are for cell culture, ELISA standard, and Western Blot Control. Chicken Midkine yeast-derived recombinant protein can be purchased in multiple sizes. Chicken Midkine Specifications: (Molecular Weight: 13.4 kDa) (Amino Acid Sequence: AKAKKEKMKK EGSECQDWHW GPCIPNSKDC GLGYREGSCG DESRKLKCKI PCNWKKKFGA DCKYKFESWG GCSAKTGVKT RSGILKKALY NAECEEVVYV SKPCTAKMKA KAKAKKGKGK D (121)) (Gene ID: 423196). For research use only. Made in the USA