human, mouse or other beta β- and alpha α- defensins are expressed by neutrophils ( α- ), lymphocytes and epithelial cells. DEFA DEFB genes defend the host against pathogens. GENTAUR supplies anti-defensins, monclonals, polyclonals antisera and recombinant DEFs or peptides of defensin.Peptides short amino acid chains or epitopes or blocking antagonists. The shortest peptides are dipeptides, consisting of 2 amino acids joined by a single peptide bond, followed by tripeptides, tetra peptides, ... till polypeptides that are long, continuous, and unbranched synthetic peptide chains. These biological oligomers and polymers can be Solid-phase peptide synthesis (SPPS), or in continue produced for custom peptide synthesis projects. The High-efficiency solid phase peptide synthesis (HE-SPPS) is give very low production costs.