Here are recombinant proteins for S100B, the approved symbol for the human gene, 'S100 calcium binding protein B'. With a Uniprot ID of P04271, this protein is listed as having 92 residues in length and a mass of 10.8 kDa. The following protein function has been assigned: 'Weakly binds calcium but binds zinc very tightly-distinct binding sites with different affinities exist for both ions on each monomer.' A subcellular localization as 'cytoplasmic, nuclear' is noted. Orthologs are reported in these species: mouse, rat, chimpanzee, guinea pig. S100B may also be known by other designations: 'protein S100-B, S-100 calcium-binding protein, beta chain, S-100 protein subunit beta, S100 calcium-binding protein, beta (neural)'.