Pyrimidine

From these results Funk believed the vitamine to belong to a class of substances known as the pyrimidine bases. ❋ Walter H. Eddy (N/A)

To improve the fit, researchers led by chemical biologist Nathanael Gray, PhD, prepared a group of inhibitors with a different structural scaffold, known as a pyrimidine core, which, it was thought, would mesh more thoroughly. ❋ Unknown (2009)

Recommended name pyrimidine-deoxynucleoside 2'-dioxygenase Synonyms deoxyuridine ❋ [email protected](arab2000.forum (2009)

D. Sutherland, Synthesis of activated pyrimidine ribonucleotides in prebiotically plausible conditions, Nature 459, 239 (2009). doi: 10.1038/nature08013. ❋ Unknown (2010)

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. ❋ Unknown (2010)

Of the many difficulties encountered by those in the field, the most frustrating has been the failure to find any way of properly joining the pyrimidine nucleobases — cytosine and uracil — to ribose (Fig. 1a). ❋ Unknown (2010)

But Powner et al. 2 revive the prospects of the 'RNA first' model by exploring a pathway for pyrimidine ribonucleotide synthesis in which the sugar and nucleobase emerge from a common precursor (Fig. 1b). ❋ Unknown (2010)

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. ❋ Unknown (2007)

The recent finding of a gene fusion encoding three pyrimidine biosynthetic enzymes, shared only by Dictyostelium, fungi andMetazoa, indicates that the amoebozoa are a true sister group of the fungi and Metazoa. ❋ Unknown (2007)

We present compound-specific carbon isotope data indicating that measured purine and pyrimidine compounds are indigenous components of the Murchison meteorite. ❋ Zoe Brain (2008)

To Simon and Cyclefree who hold such credulous views about evolution, I wonder if they have considered the origin of pyrimidine nucleotides, especially cytosine - has it really come from outer space as the wildest contemporary theories suggest?! ❋ Unknown (2008)

For example, in E. coli, as a tract of Ts that begins eight nucleotides from the promoter ¡10 region is shortened from seven to three, pyrimidine-mediated regulation of uracil phosphoribosyltransferase expression is reduced and then becomes undetectable 21. ❋ Unknown (2007)

The enzyme is also involved in the synthesis of pyrimidine, one of the buildling blocks of DNA. ❋ Unknown (2003)

In 1948, we began to divide responsibilities with respect to developing purine and pyrimidine analogs. ❋ Unknown (1989)

I had been assigned quite early to work on the purines and, with the exception of a few deviations into the pteridines and into some other condensed pyrimidine systems, the remainder of my work concentrated almost completely on the purines. ❋ Unknown (1989)