Results 141 to 150 of about 124,338 (379)

Stabilization of Long-Looped i-Motif DNA by Polypyridyl Ruthenium Complexes

open access: yesFrontiers in Chemistry, 2019
A spectroscopic study of the interactions of Λ- and Δ-[Ru(phen)2(dppz)]2+ with i-motif DNA containing thymine loops of various lengths. In the presence of i-motifs, the luminescence of the Λ enantiomer was enhanced much more than the Δ. Despite this, the
Benjamin J. Pages   +8 more
doaj   +1 more source

From One Strand Dyed/Undyed Hair With/Without Root to Fast and Successful STR Profiling and Evaluation With Principle Component Analysis

open access: yesELECTROPHORESIS, EarlyView.
ABSTRACT Fallen/shed single hair shafts with/without roots can be encountered as evidence in crime scenes. Identification from hair exhibits serious difficulties, due to the low amount of DNA, PCR inhibitors, and the existence of DNA mostly in degraded forms. Exposure of hair to chemical oxidation, sunlight, etc.
Gulten Rayimoglu   +2 more
wiley   +1 more source

Process of infection with bacteriophage phi X 174 XXXVIII. Replication of phi chi 174 replicative form in vivo [PDF]

open access: yes, 1976
The replication of bacteriophage phi X 174 replicative-form DNA has been studied by structural analysis of pulse-labeled replicative-intermediate molecules.
Fukuda, Akio, Sinsheimer, Robert L.
core  

Stretching of a single-stranded DNA: Evidence for structural transition

open access: yes, 2009
Recent experiments have shown that the force-extension (F-x) curve for single-stranded DNA (ssDNA) consisting only of adenine [poly(dA)] is significantly different from thymine [poly(dT)].
C. R. Cantor   +5 more
core   +1 more source

N-Cyclopropyl-N-[2-(2,4-difluorophenyl)-2-hydroxy-1-(1H-1,2,4-triazol-1-yl)propyl]-2-(5-methyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-1-yl)acetamide dichloromethane 0.62-solvate

open access: yesActa Crystallographica Section E, 2011
In the title compound, C21H22F2N6O4·0.62CH2Cl2, the difluoro-substituted benzene ring forms dihedral angles of 54.6 (3)° with the mean plane of the thymine ring and 50.9 (2)° with the triazole ring.
Nan Wang   +4 more
doaj   +1 more source

From the Wobble to Reliable Hypothesis [PDF]

open access: yesarXiv, 2009
A simple explanation for the symmetry and degeneracy of the genetic code has been suggested. An alternative to the wobble hypothesis has been proposed. This hypothesis offers explanations for: i) the difference between thymine and uracil, ii) encoding of tryptophan by only one codon, iii) why E.
arxiv  

Epigenotoxicity: Decoding the epigenetic imprints of genotoxic agents and their implications for regulatory genetic toxicology

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract Regulatory genetic toxicology focuses on DNA damage and subsequent gene mutations. However, genotoxic agents can also affect epigenetic marks, and incorporation of epigenetic data into the regulatory framework may thus enhance the accuracy of risk assessment.
Roger Godschalk   +4 more
wiley   +1 more source

Desenvolvimento e validação de método por cromatografia líquida de alta eficiência para determinação simultânea das impurezas timina e timidina na matéria-prima estavudina Development and validation of a high performance liquid chromatographic method for simultaneous determination of the impurities thymine and thymidine in stavudine bulk drug

open access: yesQuímica Nova, 2008
A HPLC method was developed to quantify thymine and thymidine impurities in stavudine bulk drug. The separation was carried out in isocratic mode using methanol/water (20:80) as mobile phase, a C18 column and UV detection at 266 nm.
Gisele Rodrigues da Silva   +4 more
doaj   +1 more source

Thermochemistry of uracil and thymine revisited

open access: yesThe Journal of Chemical Thermodynamics, 2015
Peer ...
Vladimir N. Emel’yanenko   +3 more
openaire   +5 more sources

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