Recombinant proteins for S100 calcium binding protein A9 are available from various sources. In humans, this protein has a Uniprot ID of P06702 and has an annotated function: 'S100A9 is a calcium- and zinc-binding protein which plays a prominent role in the regulation of inflammatory processes and immune response.' This protein is 114 amino acids in length and 13.3 kilodaltons in mass. It has been designated a subcellular localization as: cytoplasmic, secreted, cell membrane. This protein is encoded by the gene S100A9. Other names also exist, such as: protein S100-A9, MRP-14, calgranulin B, calprotectin L1H subunit, leukocyte L1 complex heavy chain, migration inhibitory factor-related protein 14. This protein is conserved in other species, including: mouse, rat, chimpanzee, guinea pig.