| 词汇 | adenine |
| 释义 | adenine noun[ U ] biology specializeduk /ˈæd.ə.niːn/ us /ˈæd.ən.iːn/ a substance that is found in DNA and RNA腺嘌呤（存在于去氧核糖核酸和核糖核酸中的一种物质） Genetics accession number anaphase autosomal autosomally autosome genetic fingerprinting genetically engineered geneticist genic genomic genomics genotypic monozygotic mutate non-familial non-genetic non-mutant nondominant nonhomologous sex-linked You can also find related words, phrases, and synonyms in the topics: Chemicals, chemical compounds & gases adenine | American Dictionaryadenine noun[ U ] us/ˈæd·əˌnin/ biology a substance that is found in DNA and RNA Examples of adenineadenine Here, we present the results concerning the adsorption and detection of the adenine nucleic based on a series of minerals including clay and meteorite. There are 30 adenines in conserved single-stranded positions compared with 26 thymines, 9 guanines and 5 cytosines. Classification of protein based on the properties of the ligand-binding site : the case of adenine-binding proteins. There are only a few specific interactions with the adenine moiety, including a tyrosine sidechain that stacks with the 6-amino group of the adenine. A predominance of adenines was apparent in the single-stranded conserved regions, especially in the areas between the base of the stems. Imaging of intrinsic indicators within tissue, such as nicotinamide adenine dinucleotide, retinol, indoleamines, and collagen provided crucial physiological information. Our survey of some obvious candidates singled out adenine mononucleotide as a promising small molecule. The point mutations at codon-46 and codon-108 represent transitional pyrimidine (thymine to cytosine) and purine (guanine to adenine) substitutions respectively. Thymidine was the most common nucleotide in position 2 and adenine the most abundant nucleotide in the seventh position. 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. Shapiro (1995, 1999) addressed difficulties in prebiotic syntheses of nucleo- bases adenine and cytosine. The condensation of nucleo-bases adenine or guanine with sugar ribose gives only minute amounts of nucleosides with correct stereochemistry, and synthesis of pyrimidine nucleosides is even more difficult. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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