Results 81 to 90 of about 74,896 (329)

Thymine Incorporation and Metabolism by Various Classes of Thymine-less Bacteria [PDF]

Journal of General Microbiology, 1965
SUMMARY: Escherichia coli strain 15T- yielded 109 organisms from 1 μg. thymine and growth was continuous, not diphasic. Aminopterin-selected thymine-less bacteria, on the other hand, required 20-25 μg. thymine/ml. to sustain growth, although thymine incorporation was the same as for strain 15T-, approximately 10-9 μg./bacterium.
openaire   +2 more sources

Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy

Chemistry – A European Journal, EarlyView.
Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez, Robby Büchner, Mattis Fondell, Albert M. Brouwer   +3 more
wiley   +1 more source

Characterization of thymine microcrystals by CARS and SHG microscopy [PDF]

, 2020
Andrej Dementjev, Danielis Rutkauskas, Ivan Polovy, Mindaugas Mačernis, Darius Abramavičius, Leonas Valkūnas, Г. И. Довбешко   +6 more
openalex   +1 more source

Synthesis and Evaluation of the First Generation of Glycosylated Nucleoside Analogues as Potential Inhibitors of the Base J Metabolism in Kinetoplastid Parasites

Chemistry – A European Journal, EarlyView.
Novel analogues of the kinetoplastid‐specific DNA base J unlock a new way to target parasite epigenetic regulation. Some compounds selectively inhibit Leishmania and Trypanosoma species without harming human cells, revealing a promising route toward innovative antiparasitic therapies.
Océane Monfret, Dan Liu, Manon Louis, Sihem Rebei, Dominique Urban, Yann Bourdreux, Elisabeth Mouray, Philippe Grellier, Gilles Doisneau, Dominique Guianvarc'h   +9 more
wiley   +1 more source

1-(1-Arylethylpiperidin-4-yl)thymine Analogs as Antimycobacterial TMPK Inhibitors [PDF]

, 2020
Yanlin Jian, Fabian Hulpia, Martijn Risseeuw, Harriet Forbes, Guy Caljon, Hélène Munier‐Lehmann, Helena I. Boshoff, Serge Van Calenbergh   +7 more
openalex   +1 more source

The structure of metallo-DNA with consecutive thymine–HgII–thymine base pairs explains positive entropy for the metallo base pair formation

Nucleic Acids Research, 2013
We have determined the three-dimensional (3D) structure of DNA duplex that includes tandem HgII-mediated T–T base pairs (thymine–HgII–thymine, T–HgII–T) with NMR spectroscopy in solution.
H. Yamaguchi, J. Šebera, J. Kondo, Shuji Oda, Tomoyuki Komuro, Takuya Kawamura, Takenori Dairaku, Y. Kondo, I. Okamoto, A. Ono, J. Burda, C. Kojima, Vladimír Sychrovský, Yoshiyuki Tanaka   +13 more
semanticscholar   +1 more source

Rational Design Strategies for Stimuli‐Responsive DNAzymes Using Modified and Artificial Nucleotides

Chemistry – A European Journal, EarlyView.
Activity control of RNA‐cleaving DNAzymes in response to external stimuli has attracted growing interest for applications in DNA‐based diagnostics, therapeutics, and dynamic DNA nanotechnology. This review summarizes rational design strategies for stimuli‐responsive DNAzymes using modified or artificial nucleotides, including split and caged DNAzymes ...
Yusuke Takezawa, Mitsuhiko Shionoya
wiley   +1 more source

Interactions of some metal ions with Nitrogenous bases present in Nucleotides

مجلة بغداد للعلوم, 2007
Acidity constants at 30co and 0.125 ionic strength have been determined for the Nitrogous bases of nucleic acid; cytocine, uarcil and thymine, and found to be 3.55 x10-19 , 1.44 x10 -19 and 7.24 x10 -20 respectively.
Baghdad Science Journal
doaj   +1 more source

Investigation of Thymine as a Potential Cancer Biomarker Employing Tryptophan with Nanomaterials as a Biosensor

, 2023
Kholoud M. Abou El-Nour, Ibrahim M. El‐Sherbiny, Gasser M. Khairy, Abbas M. Abbas‎, Eman H. Salem   +4 more
openalex   +1 more source

T‐Shaped 8‐Aryl(ethynyl)‐Substituted Psoralens With Tunable Charge‐Transfer Absorption

European Journal of Organic Chemistry, EarlyView.
Starting from 8‐methoxypsoralen, new 8‐arylated and 8‐alkynylated psoralen derivatives are accessible by cross‐coupling. These T‐shaped π‐expanded chromophores are luminescent and photophysics reveal a highly polar excited state with tunable charge‐transfer character.
Lena T. Leusch, Thomas J. J. Müller
wiley   +1 more source