| However, Tuna's only drawback is for those who suffer from hyperuricemia or gout due to its content of purines which is transformed into uric acid by the body. |
| This view was reinforced by the elucidation of Z DNA and Z RNA structures, where the syn purines are mostly guanines. |
| In comparison with the deamination of cytosine to uracil, the deamination of DNA purines is a minor reaction. |
| That is why researchers in Japan are now studying the choice of basic ingredients that are low in purines. |
| The CDR makes cells put their ordinary activities on hold and instead switch on their defence systems, in reaction to high levels in the bloodstream of chemicals called purines. |
| Indeed, all the genes encoding enzymes required for de novo AMP biosynthesis are repressed at the transcriptional level by the presence of extracellular purines. |
