Results 51 to 60 of about 50,189 (192)

A pleiotropic mutation in Neurospora conferring sensitivity of analogues of amino acids, purines and pyrimidines [PDF]

open access: yes, 1978
A pleiotropic mutation in Neurospora conferring sensitivity of analogues of amino acids, purines and ...
Catcheside, D. E.A., D. E.A. Catcheside
core   +1 more source

Parâmetros ruminais, balanço de compostos nitrogenados e produção microbiana de vacas leiteiras alimentadas com soja e seus subprodutos Ruminal parameters, nitrogen compound balance and microbial production in dairy cows fed soybeans and their by-products

open access: yesRevista Brasileira de Zootecnia, 2010
Objetivou-se analisar a variação do pH, da amônia ruminal e do balanço de compostos nitrogenados e a síntese de proteína microbiana de 12 vacas da raça Holandesa distribuídas em três quadrados latinos 4 × 4, alimentadas com dietas contendo soja em ...
Angela Maria de Vasconcelos   +5 more
doaj   +1 more source

Synthesis of (Z)-(1-fluoro-2-hydroxymethyl-cyclopropylmethyl)purines

open access: yes, 2017
(Z)-(1-fluoro-2-hydroxymethylcyclopropylmethyl)purines were designed, synthesized and evaluated their antiviral activity against poliovirus, HSV, and ...
정낙신
core   +1 more source

6-(2-Alkylimidazol-1-yl)purines Undergo Regiospecific Glycosylation at N9†

open access: yes, 2016
Regioselective control of glycosylation of purines at N9 (versus N7) has been a continuing challenge. We now report Lewis acid catalyzed regiospecific glycosylations of 6-(2-alkylimidazol-1-yl)purines at N9. The 6-(2-alkyl)imidazole moiety also functions
Minghong Zhong (2300194)   +2 more
core   +1 more source

Functionalities of Purines in Health and Disease

open access: yes, 2019
Purines conduct several vital cellular functions as in the production of the numeric-precursors of nucleic acids, whereas excess formation of uric acid generated from purines metabolism has been expansively implicated in human disease.
Dr Chrysanthus Chukwuma Sr   +1 more
core   +1 more source

Method for synthesizing diversely substituted purines

open access: yes, 2021
The present invention relates to a method for synthesizing diversely substituted purines starting from a pyrimidine. Formula ( I ). The method comprises the formation of an amidine group on the pyrimidine by implementing a Vilsmeier type reagent, the ...
Haudecoeur, Romain   +4 more
core  

Propuesta de manejo y tratamiento de purines en agrícola El Mirador, Casablanca

open access: yes, 2015
El trabajo de grado "PROPUESTA DE MANEJO Y TRATAMIENTO DE PURINES EN AGRÍCOLA EL MIRADOR, CASABLANCA" aborda el grave problema de la gestión de residuos industriales líquidos (purines) de una lechería ubicada cerca del centro urbano de Casablanca, lo que
Álvarez Gutiérrez, Ricardo Danilo
core   +1 more source

Assessment of purine catabolism and morbidity in miners depending on their work experience

open access: yesRussian Open Medical Journal
Objective — The role of end products of purine metabolism as predictors of the development of pathological changes and diseases caused by the impact of dust on the human body in a professional environment vs.
Diana M. Shaukhat   +6 more
doaj   +1 more source

Oxidized phospholipids regulate amino acid metabolism through MTHFD2 to facilitate nucleotide release in endothelial cells

open access: yesNature Communications, 2018
During atherosclerosis, endothelial cells release purines in response to oxidized phospholipids. Here, Hitzel et al. show that oxidized phospholipids activate an MTHFD2-regulated gene network in endothelial cells which reprograms amino acid metabolism ...
Juliane Hitzel   +31 more
doaj   +1 more source

Modification of Purine and Pyrimidine Nucleosides by Direct C-H Bond Activation

open access: yesMolecules, 2015
Transition metal-catalyzed modifications of the activated heterocyclic bases of nucleosides as well as DNA or RNA fragments employing traditional cross-coupling methods have been well-established in nucleic acid chemistry.
Yong Liang, Stanislaw F. Wnuk
doaj   +1 more source

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