Preparation and properties of N4-alkyl analogues of 5-methyl-2'-deoxycytidine, their 5'-mono- and triphosphates, and N4-alkyl derivatives of 1,5-dimethylcytosine.
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Cytosine↗
Biomedical subjects
D Shugar
Publications and source records attributed to D Shugar.
Mechanism of hydroxylamine mutagenesis: complexing properties of copolymers of hydroxycytidylic acid with cytidylic or uridylic acids.
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Cytosine Nucleotides↗
5-Ethyldeoxyuridine, a thymidine analog: photochemical transformation.
Irradiation at 254 millimicrons transforms 5-ethyldeoxyuridine to deoxyuridine by way of photohydration of the 5,6 bond and elimination of ethanol. At wavelengths to the red side of 265 millimicrons, photodimerization is the principal reaction, with a pronounced oxygen effect. The results are related to the photochemistry of thymidine and of bacteriophages containing incorporated 5-ethyluracil in place of thymine.
Chromatography, Thin Layer↗
Complexes of poly-ribothymidylic acid with poly-adenylic acids and some properties of poly-deoxyriboadenylic acid.
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Adenine Nucleotides↗
Studies on possible mechanisms of hydroxylamine mutagenesis.
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Chemical Phenomena↗
Preparation and properties of some 4-substituted analogues of cytosine and dihydrocytosine.
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Buffers↗
Inhibitory and lethal effects of DNA on transformable streptococci.
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DNA, Bacterial↗
Influence of DNA on growth and viability of transformable group H streptococci.
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Chloramphenicol↗
Studies on bacteriophage and bacteriophage DNA containing 5-ethyluracil or 5-bromouracil in place of thymine.
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Bromine↗
Streptococcal group H transforming system with reproducible high transformation yields.
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Bacteriological Techniques↗
Evaluation of transformation frequencies in bacterial transforming systems.
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DNA, Bacterial↗
Phosphodiesterases active against glucose cyclic phosphates.
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Chromatography↗
The structure of poly-5-methylcytidylic acid and its twin-stranded complex with poly-inosinic acid.
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Chemical Phenomena↗
Preparation and properties of some methyl-substituted cytosine ribosides and their intermediates, and poly-5-methylcytidylic acid.
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Chemical Phenomena↗
Alkaline transformations of the photohydrates of some 2,4-diketopyrimidines and their glycosides.
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Ammonia↗
Infrared and ultraviolet studies on the tautomeric equilibria in aqueous medium between monoanionic species of uracil, thymine, 5-fluorouracil, and other 2,4-diketopyrimidines.
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Pyrimidines↗
Replacement of 5-methyluracil (thymine) by 5-ethyluracil in bacterial DNA.
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Chromatography, Paper↗
Some properties of poly-ribothymidylic acid, co-polymers of uridylic and ribothymidylic acids, and their 1:1 complexes with polyadenylic acid.
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Adenine Nucleotides↗