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词汇 uracil
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Examples of uracil


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Values are the percentage inhibition of uracil incorporation for each serum dilution compared with the same dilution of normal mouse serum.
Purines and pyrimidines, including adenine, guanine, cytosine, thymine and uracil, play a major role in terrestrial biochemistry.
Selection is for uracil prototrophy.
With widely diffused minerals and metal oxides as catalysts, formamide affords all the precursor nucleic bases: purine, adenine, hypoxanthine (bioisomer of guanine), cytosine, uracil and thymine.
Backbone compression favors eversion of the now extrahelical nucleotide, which is positioned for recognition by the uracil-binding motif.
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Analysis of codon use found 39.5% uracil and 26.8% adenosine in the third base position.
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Chemically it is a derivative of nitrogen mustard and uracil.
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The first site of ionization of uracil is not known.
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It is a component of the combination drug tegafur/uracil.
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The product contains unconverted cytosine where they were previously methylated, but cytosine converted to uracil if they were previously unmethylated.
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The most common nitrogenous bases are adenine, cytosine, guanine, thymine, and uracil.
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Methylated cytosine residues are unchanged by the treatment, whereas unmethylated ones are changed to uracil.
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During the period 1885 to 1901, he was able to isolate and name its five constituent organic compounds: adenine, cytosine, guanine, thymine, and uracil.
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Adenine and guanine are purines, cytosine and uracil are pyrimidines.
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The presence of nitrous acid can cause transition mutations, by converting cytosine to uracil.
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Uracil is chemically very similar to thymine, the latter being 5-methyluracil.
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The first reaction is the simplest of the syntheses, by adding water to cytosine to produce uracil and ammonia.
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Some examples include hypoxanthine, dihydrouracil, methylated forms of uracil, cytosine, and guanine, as well as modified nucleoside pseudouridine.
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When base pairing with adenine, uracil acts as both a hydrogen bond acceptor and a hydrogen bond donor.
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The nucleotide bases are made up of purines (adenine and guanine) and pyrimidines (cytosine and thymine or uracil).
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