Results 111 to 120 of about 121,011 (315)
RESEARCHES ON PYRIMIDINES. LXXXIV. THE TRANSFORMATION BY HYDROLYSIS OF SECONDARY PYRIMIDINE NUCLEOSIDES INTO IMIDAZOL COMBINATIONS. [PDF]
, 1917 Treat B. Johnson, Sidney E. Hadley
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Identification of Optically Active Pyrimidine Derivatives as Selective 5-HT2C Modulators
Molecules, 2017 A series of pyrimidine derivatives 4a–i were synthesized and evaluated for their binding affinities towards 5-HT2C receptors. With regard to designed molecules 4a–i, the influence of the size of alkyl ether and the absolute configuration of a stereogenic
Juhyeon Kim +7 more
doaj +1 more source
Solvable models of neighbor-dependent nucleotide substitution processes [PDF]
arXiv, 2005 We prove that a wide class of models of Markov neighbor-dependent substitution processes on the integer line is solvable. This class contains some models of nucleotide substitutions recently introduced and studied empirically by molecular biologists. We show that the polynucleotide frequencies at equilibrium solve explicit finite-size linear systems ...
arxiv
Symmetry Analysis Of Genetic Code And Determinative Degree (in Russian) [PDF]
arXiv, 2000 A three-dimensional model of the genetic vocabulary is proposed in terms of determinative degree, an introduced characteristic of nucleotide, which reflects absolute difference between purin and pyrimidin bases in one DNA strand. In the fremework of this model manifest symmetry and group properties are described. It is proposed to use the determinative
arxiv
Nonlinear Dynamics in the Binary DNA/RNA Coding Problem [PDF]
arXiv, 2001 The presence of low dimensional chaos in the protein secondary structures, using the binary coded $\alpha$-helices and $\beta$-sheet motifs, has been investigated. In order to analyse symbolic DNA/RNA sequences the assignment, based on the purine/pyrimidine and strong/wea k H - bond classification sheme, of binary numbers to the nucleotides was made ...
arxiv
Angewandte Chemie International Edition, Accepted Article.Chemical probes that control the function of complex RNA molecules offer unique opportunities to interrogate biological systems. In this study, we demonstrate that a small molecule ligand selectively recognizes and undergoes traceless, reversible photocrosslinking to PreQ1 RNA aptamers.
Shaifaly Parmar +5 more
wiley +1 more source
Food Science &Nutrition, Volume 11, Issue 1, Page 350-363, January 2023., 2023 Traditional Iranian butter samples were collected from different parts of Iran and were screened for the presence of Lactic acid bacteria. The selected LAB were identified to species level by biphasic approach. The ability of selected LAB to lower the cholestrol both in vitro and in situ was then determined.
Mahbubeh Ostadzadeh +2 more
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RESEARCHES ON PYRIMIDINES: SYNTHESIS OF CYTOSINE-5-ACETIC ACID. [FIFTY-FIRST PAPER.]1 [PDF]
, 1911 Treat B. Johnson +2 more
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Regioselective C‐H Thio‐ and Selenocyanation of Pyrazolo[1,5‐a]pyrimidines
Chemistry – An Asian Journal, EarlyView.A metal‐free, N‐chlorosuccinimide (NCS) mediated, highly efficient, and regioselective C−H thiocyanation and C−H selenocyanation of pyrazolo[1,5‐a]pyrimidines are achieved under mild reaction conditions for the synthesis of a wide variety of 3‐thiocyanato‐ and 3‐selenocyanatopyrazolo[1,5‐a]pyrimidines in good to excellent yield up to 99 %.
Paramita Pattanayak +3 more
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Advanced ScienceMetabolic abnormalities contribute to the pathogenesis of obesity and its complications. Yet, the understanding of the interactions between critical metabolic pathways that underlie obesity remains to be improved, in part owing to the lack of ...
Huiying Liu +9 more
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