Fig. 7From: Ultra-high resolution X-ray structure of orthorhombic bovine pancreatic Ribonuclease A at 100KStructures of the active sites: (a) Orthorhombic RNase A. b 3RN3 [5]. c Clear single conformation of His-119 in Orthorhombic RNase A electron density. d Poor quality of electron density in His-119 3RN3 showing modelling of two conformations 65% and 35%Back to article page