PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2932448-10 1985 The phosphate ester must be located to C-2 of xylose/xylitol as the 1-3H radioactivity could be released by periodate oxidation when it was preceded by alkaline phosphatase treatment. Tritium 70-72 complement C2 Bos taurus 39-42 3790504-6 1986 From previously measured isotope effects, we predict the loss of tritium from the 1(R)-2H and 1(S)-2H samples to be 74:8 for a syn relationship between cleavage at C-1 and C-2 vs. 21:90 for an anti relationship. Tritium 65-72 complement C2 Bos taurus 164-175 435461-4 1979 The configurational purity of tritium at C-2 of dopamine and C-1 of the dopamine precursor 3-methoxy-4-hydroxyphenethylamine has been confirmed employing dopamine-beta-hydroxylase (specific for the pro-R hydrogen at C-2) and pea seedling amine oxidase (specific for the pro-S hydrogen at C-1). Tritium 30-37 complement C2 Bos taurus 41-44 435461-4 1979 The configurational purity of tritium at C-2 of dopamine and C-1 of the dopamine precursor 3-methoxy-4-hydroxyphenethylamine has been confirmed employing dopamine-beta-hydroxylase (specific for the pro-R hydrogen at C-2) and pea seedling amine oxidase (specific for the pro-S hydrogen at C-1). Tritium 30-37 complement C2 Bos taurus 216-219 8090-1 1976 At pH 8.9 and 37 degrees C the half-times for tritium exchange with the C-2 protons of the histidines of trypsin are 73 days for His-57, and greater than 1000 days for His-40 and His-91. Tritium 46-53 complement C2 Bos taurus 72-75 4454-3 1976 This was accomplished by a direct comparison of the rate of tritium incorporation into position C-2 of histidine 12 of S-peptide (residues 1 to 20) derived from ribonuclease S, with the rates of deuterium exchange of the four histidine C-2 proton resonances of ribonuclease S under the same experimental conditions. Tritium 60-67 complement C2 Bos taurus 96-99