Assay validation. Cells were treated according the provided template . Three individual experiments, each containing three plates, were conducted on three separate days. A) The left panels show a representative set of data from day two of the plate uniformity assay with the data graphed in a well-row orientation where the wells are labeled horizontally. The panels on the right contain the same data in a well-column orientation. B) Aggregate data of all nine plates over three days in a well-row orientation.