The C4S ELISA kits listed below utilize specific antibodies for the plate-based assay of C4S in various samples. C4S is another term for the C4A gene, which encodes the protein, complement C4A (Rodgers blood group) in humans. Other names for this target antigen include C4, C4A2, and C4A3. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.