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Uracil


One of the four bases in RNA. The others are adenine, guanine, and cytosine. Uracil replaces thymine, which is the fourth base in DNA. Like thymine, uracil always pairs with adenine.
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Uracil (U)
Uracil is a pyrimidine base (nitrogenous base) and constituent of nucleotides and as such one member of the base pair A-U (adenine-uracil). It is normally found in RNA but not DNA.
Base pair (bp) ...
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Uracil
Cytosine
These hydrogen bonding modes are for classical Watson-Crick base pairing.
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uracil The pyrimidine that replaces thymine in RNA molecules and nucleotides.
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Uracil-N-glycosylase
A repair enzyme that removes uracil from DNA by cleaving the bond between the base and the sugar backbone. This enzyme ensures that DNA contains T instead of U residues.
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uracil A nitrogen base found in RNA.
urban Peculiar to the human environment, as contrasted with that found normally around wild animals.
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Uracil (U): A base; one of the molecular c omponents of RNA. Bonds only with adenine (U-A).
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Uracil A nitrogenous base normally found in RNA but not DNA; uracil is capable of forming a base pair with adenine.
See also: base pair, nucleotide
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Uracil: A nitrogenous base normally found in RNA but not DNA; uracil is capable of forming a base pair with adenine.
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Members of the pairs adenine-thymine, adenine-uracil, and guaninecytosine that have the ability to hydrogen bond to one another. (See nucleotide.) Concatemer. A DNA segment composed of repeated sequences linked end to end. Conjugation.
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Base sequence -- a partnership of organic bases found in DNA and RNA; adenine forms a base pair with thymine (or uracil) and guanine with cytosine in a double-stranded nucleic acid molecule.
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RNA is primarily made up of four different bases: adenine, guanine, cytosine, and uracil. The first three are the same as those found in DNA, but uracil replaces thymine as the base complementary to adenine.
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RNA is identical with the exception that thymine (T) is substituted with uracil (U). Codons are non-overlapping groups of the three bases. There are 43 = 64 codons.
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cytidine deaminases that convert a C in the RNA to uracil (U);
adenosine deaminases that convert an A to inosine (I), which the ribosome translates as a G. Thus a CAG codon (for Gln) can be converted to a CGG codon (for Arg).
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important organic compounds (bases) such as cytosine, thymine, and uracil, which are constituents of nucleic acids
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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(RNA, like DNA, is made up of nucleotides although t he nucleotide uracil (U) is used in place of thymine (T).) The RNA transcribed from a gene is called messenger RNA.
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Other bases in addition to the normal adenine; cytosine; guanine; and uracil. Found primarily in tRNAs and produced by post transcription modification of one of the normal bases.
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A nitrogenous base, such as cytosine, thymine, or uracil, with a characteristic single-ring structure; one of the components of nucleic acids.
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The bases in the mRNA strand are opposite (complimentary) to the bases in the DNA template strand; it resembles the sense strand of DNA except that the base thymine is replaced by uracil.
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A single-stranded nucleic acid similar to DNA but having ribose sugar rather than deoxyribose sugar and uracil rather than thymine as one of the pyrimidine bases.
Also known as: ribonucleic acid ...
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PYRIMIDINE BASES - Cytosine (C), Thymine (T) or Uracil (U) (see NUCLEOTIDE).
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RNA: ribonucleic acid; a nucleic acid produced during transcription that is complementary to a DNA strand; similar to DNA in structure but contains the carbohydrate ribose and the pyrimidine uracil rather than thymine.
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components of nucleotides (despite the basic nature of nucleotides, nucleic acids are acidic due to the phosphate atoms they contain). The five bases that form the nucleic acids are adenine (A), guanine (G), cytosine (C),
tymine
(T) and uracil (U).
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