Comparison of experimental and predicted molecular masses of expression products. The correlation of predicted and experimental protein masses is shown. Dots close to the diagonals have expression products of a size corresponding to the predicted size. (a) Clones with moderate or strong protein expression. (b) Clones with weak or doubtful protein expression. For clones with at least moderate expression, a good correlation of predicted and experimental molecular mass of the expression product is visible. r, correlation coefficient.