uracil


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uracil

 [u´rah-sil]
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

u·ra·cil (Ura, U),

(yūr'ă-sil),
Pyrimidine (base) present in ribonucleic acid.
Farlex Partner Medical Dictionary © Farlex 2012

uracil

(yo͝or′ə-sĭl)
n. Abbr. U
A pyrimidine base, C4H4N2O2, that is an essential constituent of RNA.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

uracil

One of the 2 nitrogenous pyrimidine bases in RNA, which pairs with adenine and combines with ribose.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

u·ra·cil

(U) (yūr'ă-sil)
A pyrimidine (base) present in ribonucleic acid.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

uracil

One of the four bases that form the nucleotide code in RNA.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Uracilclick for a larger image
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).
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

u·ra·cil

(yūr'ă-sil)
Pyrimidine (base) present in ribonucleic acid.
Medical Dictionary for the Dental Professions © Farlex 2012
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References in periodicals archive ?
Initially, uracil (2.0 g) was dissolved in distilled water (8.0 mL).
Solid-Supported Synthesis of N-alkylated Derivatives of 5-bromo pyrimidine-2, 4-dione and Study of their Cytotoxic Effect
Peak 1: uracil; peak 2: uridine; peak 3: adenine; peak 4: guanosine; and peak 5: adenosine.
Analysis of the High-Performance Liquid Chromatography Fingerprints and Quantitative Analysis of Multicomponents by Single Marker of Products of Fermented Cordyceps sinensis
Distances of interactions in [Angstrom]ngstroms are as follows: 3.3 from 3'-acyl carbonyl O to [G143.sub.0.3] N 3.2 from uracil O4 to [N198.sub.01] N[delta], 3.0 from uracil O4 to [R205.sub.0.1] N[eta]2 2.7 from uracil N3 to [N198.sub.0.1] O[delta], 2.9 from water to [H99.sub.0.3] N[delta], 2.8 from same water to [beta]-hydroxyl, 2.8 from [beta]-hydroxyl to H12203 N[epsilon], 3.0 from [beta]-hydroxyl to [Q73.sub.0.3] N[epsilon], 3.3 from glucosamine 3'O to [H125.sub.0.3], 2.8 from [H125.sub.0.3] NS to [D126.sub.0.3], 2.9 from glucosamine 6'-hydroxyl to [H144.sub.0.3] N[epsilon], 3.0 from the glucosamine ring O to [K76.sub.0.3] N[zeta], 3.0 from 2'-acetyl carbonyl to [L75.sub.0.3] N, and 2.6 from [alpha]-phosphate to [Q161.sub.0.3] N[epsilon].
Current Progress in the Structural and Biochemical Characterization of Proteins Involved in the Assembly of Lipopolysaccharide
Our previous studies identified that uracil lesions in the DNA of formalin-fixed tissues are the major source of C>T (and G>A) sequence artifacts (13, 14).
Reducing Artifactual EGFR T790M Mutations in DNA from Formalin-Fixed Paraffin-Embedded Tissue by Use of Thymine-DNA Glycosylase
sinensis based on biosynthetic pathway and differential expression analysis, the uridine production reached 5.04 mg/g with an increase of 28.6% when 2 mg/mL ribose was added, while uridine production reached 10.83 mg/g with a rise of 176.3% when 0.3 mg/mL uracil was added, indicating that the product inhibition for uridine nucleosidase by uracil was stronger than that by ribose.
Enhancement of Nucleoside Production in Hirsutella sinensis Based on Biosynthetic Pathway Analysis
Absorbance measurements were made on the TRIS buffer, tryptophan solution, and uracil solution using the calibrated short-pathlength cuvettes on the Cary transfer spectrophotometer.
Development of NIST Standard Reference Material 2082, a Pathlength Standard for Measurements in the Ultraviolet Spectrum
The resulting uracil prototroph transformants exhibit blue colonies and can be selected on uracil-free plates.
Development of the Multiple Gene Knockout System with One-Step PCR in Thermoacidophilic Crenarchaeon Sulfolobus acidocaldarius
TLC of the solid (dissolved in water, eluted with a 70: 40: 10 by volume mixture of ethyl acetate-acetone-water and visualized by UV) showed uracil as a major component (Shyamaprosad et al, 2007)
SOLVENT-FREE RAPID MICROWAVE SYNTHESIS AND ANTIVIRAL ACTIVITY OF 2,4-(I H, 3H) PYRIMIDINEDIONE
Folate mediated one-carbon metabolic pathway is central to DNA metabolism including its synthesis repair and methylation.1 This strategy is utilized therapeutically for hematological and trophoblastic malignancies.23 The one carbon metabolism also involves regulation of epigenetic mechanisms including CpG island and histone methylation and DNA uracil incorporation hence not surprisingly a number of studies have shown aberrant folate and vitamin B12 metabolism to be associated with cardiovascular risk4 neurodegeneration5 and malignancies of various tissues.6-10 There are only some studies that explore the status of folate and vitamin B12 in acute lymphoid leukemias (ALL).
Estimation of serum folate and vitamin b12 levels in children with hematologic malignancies
Moreover the importance of uracil and its annulated derivatives is well recognized by synthetic [26, 27] as well as biological [28, 29] chemists.
An efficient, clean, and catalyst-free synthesis of fused pyrimidines using sonochemistry
Bromacil is a widely used herbicide in the substituted uracil family that is commercially used in the United States for annual and perennial brush and weed control in citrus and pineapple crops as well as in nonagricultural settings [1].
In vitro selection of a single-stranded DNA molecular recognition element specific for bromacil
The stereoisomeric aminols 11a,b were also converted into the uracil and thymine nucleosides.
Syntheses of isoxazoline-carbocyclic nucleosides and their antiviral evaluation: a standard protocol

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