Histidine, with its pKa near 6.5 and capacity to exist in two imidazole tautomers, is uniquely positioned to function as both a general acid and general base at physiological pH, accounting for its prevalence in enzyme active sites
Association of low-dose exposure to persistent organic pollutants with global DNA hypomethylation in healthy Koreans
Like millions of others around the country, if youve ever considered taking one of these drugs, you probably went online to learn more about where you can get them and how much they cost
NRG, RG, LK, AP, CS, SA, AB, MVC, AC, CG, MH, JM, CM, MS, AIT, HYY, IWA and QZ designed and performed the experiments and analysed the data in collaboration with or under the guidance of GL, RR and PR
The gut microbiome in atherosclerotic cardiovascular disease