The S1 ELISA kits listed below utilize specific antibodies for the plate-based assay of S1 in various samples. S1 is another term for the PSMD1 gene, which encodes the protein, proteasome 26S subunit, non-ATPase 1 in humans. The target protein is a known component of the 26S proteasome, a multiprotein complex involved in the ATP-dependent degradation of ubiquitinated proteins. Structurally, the PSMD1 protein is 953 amino acid residues in length and 105.8 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. Other names for this target antigen include P112, P112, and Rpn2. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.