uracil

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uracil

[u´rah-sil]

a pyrimidine base found in ribonucleic acid (RNA).

u·ra·cil (Ura, U),

(yūr'ă-sil),

Pyrimidine (base) present in ribonucleic acid.

uracil

/ura·cil/ (ūr´ah-sil) a pyrimidine base, in animal cells usually occurring condensed with ribose to form the ribonucleoside uridine; the corresponding deoxyribonucleoside is deoxyuridine. Symbol U.

uracil

(yo͝or′ə-sĭl)

n. Abbr. U

A pyrimidine base, C₄H₄N₂O₂, that is an essential constituent of RNA.

uracil

a pyrimidine base found in RNA. Pairs with adenine. See also thymine.

uracil

One of the 2 nitrogenous pyrimidine bases in RNA, which pairs with adenine and combines with ribose.

u·ra·cil

(U) (yūr'ă-sil)

A pyrimidine (base) present in ribonucleic acid.

uracil

One of the four bases that form the nucleotide code in RNA.

Fig. 310 Uracil . Molecular structure.

uracil

one of four types of nitrogenous bases found in RNA, having the single-ring structure of a class known as PYRIMIDINES. Formula: C4H4N2O2. See Fig. 310 . Uracil always forms complementary pairs with a base called adenine in DNA (during TRANSCRIPTION) or RNA (during TRANSLATION).

u·ra·cil

(yūr'ă-sil)

Pyrimidine (base) present in ribonucleic acid.

uracil

U; Ura; a pyrimidine base found in nucleic acids.

References in periodicals archive ?

Cytosine is converted to uracil, most probably at the nucleotide or nucleoside stage [15].

The relationship between odd- and branched-chain fatty acids and microbial nucleic acid bases in rumen

The presence of amide group in uracil was found by stretching vibration frequency near 1680-1630 cm-1.

SOLVENT-FREE RAPID MICROWAVE SYNTHESIS AND ANTIVIRAL ACTIVITY OF 2,4-(I H, 3H) PYRIMIDINEDIONE

The values Gb, Gx, Kb and Kx for uracil derivatives with CTAB and SDS are listed in Table- 1.

A Spectroscopic and Electrochemical Investigation of Interactions of Anticancer Uracil Derivatives with Cationic and Anionic Surfactants

Uracil in DNA-general mutagen, but normal intermediate in acquired immunity.

Sequence artifacts in DNA from formalin-fixed tissues: causes and strategies for minimization

7] mutagenized cells were spread onto 5-FOA plates containing uracil and uridine, and then were incubated at 30[degrees]C up to one week.

Generation of a uracil auxotroph strain of the probiotic yeast Saccharomyces boulardii as a host for the recombinant protein production

This model is consistent with coordination potential between hypoxanthine and uracil, however, several other structures are possible.

Induction of the macrostomal form of Tetrahymena vorax by a synthetic ferrous iron chelate of hypoxanthine and uracil

Investigations of glutathione S-transferase (6), hemoglobin (7), uracil N-glycosylase (8), chorismate metabolism enzymes (9), and hypothetical protein targets associated with a structural genomics program (10) are representative of these efforts.

Macromolecular crystallography and structural biology databases at NIST

cerevisiae INVSC1 (Invitrogen, Carlsbad, CA) and transformant were selected on solid media lacking uracil [SC-ura with 2% (w/v) glucose--Adams et al.

The Naturally Occurring High Oleate Oil Character in Some Peanut Varieties Results from Reduced Oleoyl-PC Desaturase Activity from Mutation of Aspartate 150 to Asparagine

The pyrimidines uracil and orotic acid are formed directly from HCN, whereas uracil and cytosine are formed from cyano-acetylene [ILLUSTRATION FOR FIGURE 2 OMITTED](3).

Prebiotic synthesis on minerals: bridging the prebiotic and RNA worlds

He isolated two different purines, adenine and guanine, and three different pyrimidines, uracil, cytosine, and thymine.

Purines and pyrimidines

The company's lead product candidate, PSI-7977, an unpartnered uracil nucleotide analog, has recently been advanced into two Phase 3 studies in genotype 2 and 3 patients.

Gilead Sciences to Acquire Pharmasset, Inc. for $11 Billion

There's also a difference in that, while the bases adenine, guanine, and cytosine are common to both RNA and DNA, the DNA base thymine is substituted by uracil in RNA.