This is primarily done by analyzing the Amide I band (around 1600-1700 cm -1 originating from the C=O stretching and N-H in-phase bending vibration of the amide group), which is sensitive to protein secondary structure due to the variations in hydrogen bonding and dipole-dipole interactions within -helices, -sheets, and disordered regions (Sutherland, 1952
Based on the gel-filtration analysis, PPI-1 was shown to have an apparent molecular weight of 60 kDa, which is more than 3 time larger that the molecular weight measured by sedimentation equilibrium centrifugation (19.2 kDa)
When glycemia is low, such as during fasting or between meals, glucagon promotes the hepatic break-down of stored glycogen (glycogenolysis) into glucose for release into the bloodstream, or the renal synthesis of glucose from non-carbohydrate sources (Jiang and Zhang, 2003
Biomolecules 10 , 1489(2020)