Additional file 3: of The plasma glutamate concentration as a complementary tool to differentiate benign PET-positive lung lesions from lung cancer

Figure S2. Focus on the 1H-NMR regions IR89, IR90 and IR91. The β-CH2 protons of glutamate are diastereotopic since they are located on a carbon atom next to an asymmetric carbon atom. This results in a complex multiplet of several peaks situated between 2.03 and 2.22 ppm, and appearing in the following three integration regions: IR89 = glutamate and methionine; IR90 = glutamate, glutamine, proline and methionine; and IR91 = CH2-C=O or CH2-CH=CH- of fatty acids, glutamate, isoleucine, methionine and proline. A: 1H-NMR spectrum of a lung cancer patient. B:: 1H-NMR spectrum of a patient with lung inflammation. (PDF 512 kb