Mouse S100A4 ELISA Kit - Intracellular is a single-wash 90-min Simplestep used to quantify Mouse S100A4 with a sensitivity of 5,7 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.