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pyrimidine
pyrimidine
pyrimidine A basic, six-membered, heterocyclic compound; the principal pyrimidines (uracil, thymine, and cytosine) are important constituents of
nucleic acids.
Thiamine (vitamin B
1) is an important pyrimidine derivative, and other derivatives play major roles in carbohydrate and lipid metabolism.
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Modeling of phosphomethyl pyrimidine kinase from Leptospira interrogans serovar lai strain 56601.(Views & Challenges)
Magazine article from: Bioinformation; 1/1/2006; ; 700+ words
; ...do not produce it. Phosphomethyl pyrimidine kinase is an enzyme involved in...structural template of phosphomethyl pyrimidine kinase from Thermus thermophilus HB8 for modeling the phosphomethyl pyrimidine kinase structure from Leptospira...
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Analysis of Pyrimidine Synthesis "de Novo" Intermediates in Urine and Dried Urine Filter-Paper Strips with HPLC-Electrospray Tandem Mass Spectrometry
Magazine article from: Clinical Chemistry; 11/1/2004; ; 700+ words
; ...a urea-cycle defect or pyrimidine degradation defect showed...for disorders affecting the pyrimidine de novo pathway. The use...Association for Clinical Chemistry Pyrimidine nucleotides are essential...glycosylation of proteins (1). Pyrimidines are synthesized "de novo...
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Hereditary disorders of purine and pyrimidine metabolism: Identification of their biochemical phenotypes in the clinical laboratory
Magazine article from: Mayo Clinic Proceedings; 8/1/1997; ; 700+ words
; ...for many purines and pyrimidines. Some purines have...unique to purine and pyrimidine metabolism have been...as free bases, and pyrimidines are usually salvaged...turnover of purines and pyrimidines occurs in rapidly dividing...disorders of purine and pyrimidine metabolism (Table...
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Regulation of pyrimidine formation in Pseudomonas lundensis.(Report)
Magazine article from: Canadian Journal of Microbiology; 3/1/2009; ; 700+ words
; ...synthesis of pyrimidine biosynthetic...regulated by pyrimidines in glucose...fragi, pyrimidine biosynthesis...controlled by pyrimidines (West 2005...regulation of the pyrimidine biosynthetic pathway by pyrimidines at the level...
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Pyrimidine as antiinflammatory agent: A review.(Review Article)(Report)
Magazine article from: Indian Journal of Pharmaceutical Sciences; 5/1/2007; ; 700+ words
; ...Amir, S. Javed, Harish. Kumar Pyrimidine nucleus exhibited remarkable pharmacological...Literature indicates that compounds having pyrimidine nucleus have wide range of therapeutic...activity possessed by compounds having a pyrimidine nucleus. In medicinal chemistry pyrimidine...
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Analysis of Pyrimidine Catabolism in Drosophila melanogaster Using Epistatic Interactions With Mutations of Pyrimidine Biosynthesis and [beta]-Alanine Metabolism
Magazine article from: Genetics; 3/1/2006; ; 700+ words
; ...perturbed homeostasis of pyrimidines, β-alanine...demonstrated that modified pyrimidine degradation can be...mutants in which de novo pyrimidine biosynthesis is blocked...high dietary levels of pyrimidines and they are unable...first enzymatic step of pyrimidine degradation, DPD...
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A CARBOCYCLIC 7-DEAZAPURINE-PYRIMIDINE HYBRID NUCLEOSIDE
Magazine article from: Collection of Czechoslovak Chemical Communications; 8/1/2006; ; 700+ words
; ...relevant purine- and pyrimidine-metabolizing enzymes...first 7-deazapurine-pyrimidine hybrid nucleoside 3...Pyrrolopyrimidines; Pyrimidines; Nucleobases. Recent...some carbocyclic pyrimidines have proven to be potent...and 6-substituted pyrimidine nucleosides have exhibited...
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Chlorella virus pyrimidine dimer glycosylase excises ultraviolet radiation-and hydroxyl radical-induced 4,6-diamino-5-formamidopyrimidine and 2,6-diamino-4hydroxy-5-formamidopyrimidine from DNA
Magazine article from: Photochemistry and Photobiology; 2/1/2002; ; 700+ words
; ...cv-pdg, Chlorella virus pyrimidine dimer glycosylase; DTT...monitoring; T4-pdg, T4 pyrimidine dimer glycosylase. (C...the excision of modified pyrimidines (endonuclease III and endonuclease...syn I and II cyclobutane pyrimidine dimers, 6-4 dipyrimidines...
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Comprehensive Detection of Disorders of Purine and Pyrimidine Metabolism by HPLC with Electrospray Ionization Tandem Mass Spectrometry
Magazine article from: Clinical Chemistry; 6/1/2006; ; 700+ words
; ...defects in purine and pyrimidine metabolism in a...Chemistry Purines and pyrimidines serve as precursor...Clinical features of pyrimidine degradation disorders...excretion of purines or pyrimidines. The method presented...relevant purines and pyrimidines, permitting the...disorders of ...
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Changes in pyrimidine nucleotide biosynthesis during germination of white spruce (Picea Glauca) somatic embryos
Magazine article from: In Vitro Cellular & Developmental Biology; 3/1/2001; ; 700+ words
; SUMMARY Changes in pyrimidine metabolism were investigated in germinating...germination is present in the literature. Pyrimidine nucleotides are important precursors...cycles. Comprehensive studies on pyrimidine biosynthesis in several plant species...
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pyrimidine
Book article from: A Dictionary of Plant Sciences
pyrimidine A basic, 6-membered heterocyclic compound. The principal pyrimidines (uracil, thymine, and cytosine) are important...acids . Thiamine (vitamin B 1 ) is an important pyrimidine derivative, and other derivatives play major...
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pyrimidines
Book article from: A Dictionary of Food and Nutrition
pyrimidines Nitrogenous compounds (bases) that occur in nucleic acids : cytosine, thymidine, and uracil.
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Nucleotide
Book article from: Genetics
...as either purines or pyrimidines. Purine structures have two rings, while pyrimidines have one. The two purine...adenine (A). The two pyrimidine bases found in DNA are...thymine (T), and the two pyrimidine bases found in RNA are...
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Nucleotides
Book article from: Chemistry: Foundations and Applications
...of a heterocyclic base (a purine or pyrimidine), a cyclic sugar unit (ribose or...below lists the names of purine and pyrimidine bases, the nucleosides (base + ribose...both purine ( guanine shown here) and pyrimidine ( thymine shown here) compounds are...
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Mutation
Book article from: Biology
...referred to as purines, while C and T are pyrimidines. Substitutions, then, may be from purine to purine or from pyrimidine to pyrimidine (transitions), or purine to pyrimidine or vice versa (transversions). The...
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