Isotype or positive controls by peptides, antibodies and deactivated samples.Finger like and finger proteins are like zinc fingers small proteins with a structural motif that is characterized by the coordination of one or more zinc ions in order to stabilize the fold. Homeobox and homeodomain families.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.