Anti-Defensin, beta 131 antibodies enable researchers to detect and measure the Defensin, beta 131 antigen in biological samples. This target is a reported synonym of the DEFB131B gene, which encodes defensin beta 131B. This protein is known to function in innate immune responses, among other biological roles. The human version of Defensin, beta 131 has a canonical amino acid length of 70 residues and a protein mass of 8.2 kilodaltons. It is reported to be a secreted protein. Other names for this target antigen include beta-defensin 131B and defensin, beta 131.