The Feline 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. Feline IL-8 applications are for cell culture, ELISA standard, and Western Blot Control. The Feline IL-8 yeast-derived recombinant protein can be purchased in multiple sizes. Feline IL-8 Specifications: (Molecular Weight: 8.9 kDa) (Amino Acid Sequence: AVLSRISSEL RCQCIKTHST PFNPKLIKEL TVIDSGPHCE NSEIIVKLVN GKEVCLDPKQ KWVQKVVEIF LKKAEKQNA) (Gene ID: 493836). For research use only. Made in the USA