| In DNA the bases pair to form a ladder-like structure, with adenine paired with thymine and guanine with cytosine. |
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| The derivatives of purine are called adenine and guanine, and the derivatives of pyrimidine are called thymine, cytosine and uracil. |
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| In many organisms, nuclear DNA is methylated at cytosine residues, resulting in 5-methylcytosine. |
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| She was treated with a chemotherapeutic regimen that included daunorubicin, cytosine, and thioguanine. |
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| In comparison with the deamination of cytosine to uracil, the deamination of DNA purines is a minor reaction. |
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| Cytosine can be formed by reacting cyanoacetylene with cyanate, cyanogen or urea, and uracil can be produced by the hydrolysis of cytosine. |
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| These bases are adenine, cytosine, guanine and thymine and can be represented as A, C, G, and T, respectively. |
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| The nucleotide elements of DNA are adenosine, guanine, cytosine, and thymine, abbreviated A, G, C, and T, respectively. |
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| Nitrosative deamination of cytosine and adenine results in uracil and hypoxanthine, respectively. |
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| The deamination product of adenine is hypoxanthine, and hypoxanthine base pairs with cytosine rather than thymine. |
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| Isochores were defined as long genomic segments that are fairly homogeneous in their guanine and cytosine composition. |
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| Bisulfite treatment of unmethylated CpG converts cytosine to uracil, while methylated cytosines are protected from conversion. |
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| He was diagnosed with acute monoblastic leukemia and subsequently underwent induction therapy with daunorubicin, 6-thioguanine, and cytosine arabinoside. |
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| The four become cytosine, guanine, adenine, and thymine, and the quantum forces that maintained the rest of universe sit on the sidelines while life take center stage. |
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| Anions such as bisulfite can deaminate cytosine to form uracil, changing the genetic message by causing C-to-T transitions. |
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| Its DNA is reprogrammed, the theory goes, by a process called cytosine methylation. |
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| The spontaneous deamination of cytosine is a frequent event. |
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| We value the study of adenine, thymine, cytosine, and guanine far above the study of childhood diarrhoea, Chagas' disease, community health, and patients' decision making. |
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| Thus, acyclovir is distinctly different than cytosine arabinoside which was reported to produce prominent cerebellar and retinal dysplasia in neonatal rats. |
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| These bonds almost always form between an adenine base on one strand and a thymine base on the other strand, or between a cytosine base on one strand and a guanine base on the other. |
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| His postremission therapy was high-dose cytosine arabinoside, and he is currently being monitored. |
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| The most frequently examined epigenetic mechanism is called DNA methylation because it involves methylation of cytosine in CpG pairs. |
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| The proprietary FCU1 gene was constructed by Transgene's scientists by fusing the Saccharomyces cerevisiae cytosine deaminase gene and the uracil phosphoribosyltransferase gene. |
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| After one cycle of high-dose methotrexate and cytosine arabinoside chemotherapy, he received radiotherapy to the mediastina. |
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| Dexamethasone, cisplatin, and cytosine arabinoside were given in 3 courses. |
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| Uracil is not usually found in DNA, occurring only as a breakdown product of cytosine. |
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| Last year, Zhang's group reported that Tet proteins can convert 5 methylC to 5 hydroxymethylC in the first of a four step reaction leading back to bare-boned cytosine. |
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| Base modifications can be involved in packaging, with regions that have low or no gene expression usually containing high levels of methylation of cytosine bases. |
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| Here, purines form hydrogen bonds to pyrimidines, with adenine bonding only to thymine in two hydrogen bonds, and cytosine bonding only to guanine in three hydrogen bonds. |
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| Cytosine deaminase from the five Aspergillus species were preincubated at various temperature before assay. |
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