We are intrigued by the fact that others use methanol to denaturate/precipitate protein before coating wells. Is there a consensus on how reverse ELISA is performed?
Normally I just use protein in bicarbonate buffer (pH 9.6) for coating the proteins on the plate (Nunc-Maxisorp). Methanol or other denaturants might not work well with every assay in the case that your antibody recognizes a conformational epitope.