Mouse p21 ELISA kit (CDKN1A) is a single-wash 90-min Simplestep used to quantify Mouse p21 (CDKN1A) with a sensitivity of 2,7 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step. - Colorimetric sandwich ELISA - 450 nm readout : works on any standard plate reader - Design your own immunoassay: we also offer the conjugation-ready antibody pair.