| 词汇 | thymine |
| 释义 | BETA Examples of thyminethymine isn’t in the Cambridge Dictionary yet. You can help! Spontaneous deamination of 5-methylcytosine to thymine causes a 12-fold increased mutation frequency relative to unmodified cytosine. Psoralens can form two types of monoadducts and one diadduct (an interstrand crosslink) reacting with thymine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Other names in common use include thymine 7-hydroxylase, 5-hydroxy-methyluracil dioxygenase, and 5-hydroxymethyluracil oxygenase. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Uracil is chemically very similar to thymine, the latter being 5-methyluracil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hypoxanthine, in a manner analogous to the imine tautomer of adenine, selectively base pairs with cytosine instead of thymine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The most common nitrogenous bases are adenine, cytosine, guanine, thymine, and uracil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. During the period 1885 to 1901, he was able to isolate and name its five constituent organic compounds: adenine, cytosine, guanine, thymine, and uracil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Each nucleotide has a pentose sugar, a phosphate group and nitrogenous bases like adenine, guanine, cytosine, thymine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The nucleotide bases are made up of purines (adenine and guanine) and pyrimidines (cytosine and thymine or uracil). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One common mutagenic base analog is 5-bromouracil, which resembles thymine but can base-pair to guanine in its enol form. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The tanning activator coumarin is known to induce thymine dimers (cyclobutane pyrimidine dimers). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It most commonly pairs with thymine as an adenine-analogue, but can also pair with cytosine as a guanine-analogue;. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This damage is mainly the formation of a thymine dimer. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This pairing always occurs in specific combinations, with cytosine and guanine always forming a pair and thymine and adenine always forming a pair. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are 30 adenines in conserved single-stranded positions compared with 26 thymines, 9 guanines and 5 cytosines. The point mutations at codon-46 and codon-108 represent transitional pyrimidine (thymine to cytosine) and purine (guanine to adenine) substitutions respectively. Purines and pyrimidines, including adenine, guanine, cytosine, thymine and uracil, play a major role in terrestrial biochemistry. 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. While a similar interaction might be made if an adenine were located in this position, replacement by either guanine or thymine would evidently prevent the contact. |
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