The Human IL-8 yeast-derived recombinant protein is not tagged and is naturally endotoxin-free. The purity is greater than 98% as visualized by SDS-PAGE analysis. Human IL-8 applications are for cell culture, ELISA standard, and Western Blot Control. The Human IL-8 yeast-derived recombinant protein can be purchased in multiple sizes. Human IL-8 Specifications: (Molecular Weight: 9.1 kDa) (Amino Acid Sequence: EGAVLPRSAK ELRCQCIKTY SKPFHPKFIK ELRVIESGPH CANTEIIVKL SDGRELCLDP KENWVQRVVE KFLKRAENS (79)) (Gene ID: 3576). For research use only. Made in the USA