Fig. 1From: Surface patches on recombinant erythropoietin predict protein solubility: engineering proteins to minimise aggregationHuEPO wild-type and variants surface illustration showing the electrostatic potential patches [29]. Amino acids in positive patches are represented by blue, non-charged patches by white and negatively charged by red colour, respectively, with dashed yellow contours drawn in to delineate the largest positive patchesBack to article page