from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A double-ringed, crystalline organic base, C5H4N4, not known to occur naturally, from which is derived the nitrogen bases adenine and guanine, as well as uric acid as a metabolic end product.
- n. Any of a group of organic compounds structurally related to purine, particularly adenine and guanine, and also caffeine, uric acid, theobromine, and theophylline.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a class of organic heterocyclic base containing fused pyrimidine and imidazole rings; they are components of nucleic acids
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of several bases that are derivatives of purine
- n. a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances
They form phosphorus-containing organic substances which, together with a form of phosphoric acid, usually contain purine bodies, pyrimidine bodies and a form of sugar or related substance.
I started reading about Alzheimer's and tried to familiarize myself with the research, and at the same time when I was in the -- I was reading in the medical library one day, and I read this article about something called purine derivatives.
Uric acid levels are elevated when injesting too much purine, which is found in red meats, legumes, beer, and vegetables such as asparagus and
Furthermore, although Powner and colleagues 'synthetic sequence yields the pyrimidine ribonucleotides, it cannot explain how purine ribonucleotides (which incorporate guanine and adenine) might have formed.
In 1902 Emil Fischer, then in Berlin, was given the prize for "his work on sugar and purine syntheses".
She thought she would add various chemical side chains to each of the six carbon atoms, producing dozens of new variants of purine.
Q2: Do you know about “healthy beers”, which have healthy features such as low sugar, low calorie or low purine?
More specifically, purine compounds and their derivatives were used to inhibit the growth of such cells by blocking the synthesis of certain nucleic acids.
Superpositions of dipole states of base pairs consisting of purine (A, G) and pyrimidine (C, T) ring structures play the role of qubits, and quantum communication (coherence, entanglement, non-locality) occur in the "pi stack" region of the DNA molecule.
Now there is new genre fourth sector beers, which seem to be going back to being based on the traditional barley, but with lower sugar, carbohydrates, purine, and taste content.
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