Pyrimidine analogue Pyrimidine analogues are antimetabolite s which mimic the structure of metabolic pyrimidine s. Examples ... FUDR Cytosine arabinoside Cytarabine gallery Image Pyrimidin.svg Pyrimidine Image Fluorouracil.svg ..
Pyrimidine metabolism
nofootnotes date August 2008 Pyrimidine biosynthesis occurs both in the body and through organic synthesis. De novo biosynthesis of pyrimidine Unlike purines, pyrimidines are assembled before being attached ..
Pyrimidine dimers Pyrimidine dimers cyclobutane dimer are pairs of thymine and cytosine bases in DNA that arise via photochemical reaction s. ref cite journal title The Molecular Perspective Ultraviolet Light and Pyrimidine ..
Pyrimidine-nucleoside phosphorylase
In enzymology , a pyrimidine nucleoside phosphorylase EC number 2.4.2.2 is an enzyme that catalysis catalyzes the chemical reaction a pyrimidine nucleoside phosphate math rightleftharpoons math a pyrimidine ..
Pyrimidine-deoxynucleoside 2'-dioxygenase
In enzymology , a pyrimidine deoxynucleoside 2 dioxygenase EC number 1.14.11.3 is an enzyme that catalysis ... include deoxyuridine 2 dioxygenase , deoxyuridine 2 hydroxylase , pyrimidine deoxyribonucleoside 2 hydroxylase ..
Pyrimidine-deoxynucleoside 1'-dioxygenase
In enzymology , a pyrimidine deoxynucleoside 1 dioxygenase EC number 1.14.11.10 is an enzyme that catalysis ... IUBMB EC number 1 14 11 10 Gene Ontology GO codes GO code links GO code 0047079 name pyrimidine ..
Inborn errors of purine-pyrimidine metabolism
MedlinePlus eMedicineSubj eMedicineTopic MeshID D011686 Inborn errors of purine pyrimidine metabolism are a class of inborn error of metabolism disorders specifically affecting purine metabolism and pyrimidine ..
Pyrimidinedione
Image Pyrimidin.svg thumb right Pyrimidine Image Primidone.png thumb right Primidone Pyrimidinediones are a class of chemical compounds characterized by a pyrimidine ring subsubstituted with two carbonyl ..
Pyrimidinones
Image Pyrimidine chemical structure.png thumb Pyrimidine Image Cytosine chemical structure.png thumb Cytosine Image Metharbital.png thumb Metharbital Pyrimidinones are derivatives of pyrimidine which have ..
Pyrimidine-5'-nucleotide nucleosidase
In enzymology , a pyrimidine 5 nucleotide nucleosidase EC number 3.2.2.10 is an enzyme that catalysis catalyzes the chemical reaction a pyrimidine 5 nucleotide H sub 2 sub O math rightleftharpoons math ..
C4H4N2
The molecular formula C sub 4 sub H sub 4 sub N sub 2 sub may refer to Pyrazine Pyridazine Pyrimidine Succinonitrile disambig ..
Ribosylpyrimidine nucleosidase
the chemical reaction a pyrimidine nucleoside H sub 2 sub O math rightleftharpoons math D ribose a pyrimidine base Thus, the two substrate biochemistry substrates of this enzyme are pyrimidine nucleoside ..
Dihydropyrimidine dehydrogenase
LocusSupplementaryData Dihydropyrimidine dehydrogenase DPD is an enzyme that is involved in pyrimidine degradation. It is the initial and rate limiting step in pyrimidine catabolism. It catalyzes the reduction ..
Barbiturase
step of oxidative pyrimidine degradation, promoting the ring opening hydrolysis of barbituric acid ... in the pyrimidine biosynthesis pathway and competitively inhibits barbiturase. In addition, barbituric ..
Nucleoside deoxyribosyltransferase
class is nucleoside purine pyrimidine deoxy D ribosyltransferase . Other names in common use include purine pyrimidine nucleoside purine pyrimidine deoxyribosyl , transferase , deoxyribose transferase ..
Basic aromatic ring
purine s and pyrimidine s are the nucleobases found in DNA and RNA . border 0 cellpadding 5 cellspacing ... simple structure.svg Image Purine.svg Image Pyrimidine simple structure.svg align center Imidazole ..
Thymine dimer
type of DNA damage known as pyrimidine dimers , which, as the name suggests, can occur between any adjacent pair of pyrimidine bases such as between 2 cytosines or a cytosine and a uracil . Excision ..
5-Methyluridine
compound compound 5 methyluridine also called ribosylthymine , thymine riboside , and m5u is a pyrimidine ... sugar joined to a pyrimidine base and is similar to cytidine , uridine , 2 deoxyuridine , 2 deoxyguanosine ..
Transition (genetics)
is a mutation changing a purine to another purine nucleotide Adenine A Guanine G or a pyrimidine to another pyrimidine nucleotide Cytosine C Thymine T . Approximately two out of every three single nucleotide ..
CTP synthase
CTP synthase or CTP synthetase is an enzyme involved in pyrimidine biosynthesis . It intraconverts ... GTP , a purine . This acts to balance the relative amounts of purine and pyrimidine nucleotides ..
URA3
of pyrimidine ribonucleotides . Loss of ODCase activity leads to a lack of cell growth unless uracil ... . PAUL J. FLYNN AND RICHARD J. REECE. Activation of Transcription by Metabolic Intermediates of the Pyrimidine ..
Ribonucleotide
A ribonucleotide is a nucleotide in which a purine or pyrimidine base is linked to a ribose molecule . The base may be adenine A , guanine G , cytosine C , or uracil U . Note that thymine T , which is found ..
Dihydroorotase
which converts Carbamoyl aspartic acid into 4,5 Dihydroorotic acid . See also Pyrimidine biosynthesis ..
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