Recombinant proteins for S100 calcium binding protein A1 are available from various sources. In humans, this protein has a Uniprot ID of P23297 and has an annotated function: 'Probably acts as a Ca(2+) signal transducer.' This protein is 94 amino acids in length and 10.6 kilodaltons in mass. It has been designated a subcellular localization as: cytoplasmic. This protein is encoded by the gene S100A1. Other names also exist, such as: protein S100-A1, S-100 protein alpha chain, S-100 protein subunit alpha, S100 alpha, S100 protein, alpha polypeptide. This protein is conserved in other species, including: mouse, rat, chimpanzee.