Fig. 27From: Ultra-high resolution X-ray structures of two forms of human recombinant insulin at 100 K a Electron density in the Insugen (I) structure for PheB24, an example of a clear single highly resolved amino acid residue. b Electron density in the Insugen (I) structure for PheB25, an example of very poor density modelled as a doubly disordered acid residue. This result is surprising in view of the high order observed in PheB24 (a)Back to article page