CGLB, or S100 calcium binding protein A9, is a human gene encoded by S100A9. It may also be known as: Protein S100-A9; Calprotectin L1H subunit; Leukocyte L1 complex heavy chain; Migration inhibitory factor-related protein 14; MRP-14; S100 calcium-binding protein A9; Calgranulin-B; 60B8AG; CAGB; L1AG; LIAG; MAC387; MRP14; NIF. The encoded protein has an amino acid length of 114 and a mass of 13.2 kDa. CGLB is a member of the S-100 family. Homologs of this gene exist in other organisms, including: Mouse.