PURINE

type of organic base found in the nucleotides and nucleic acids of plant and animal tissue. The German chemist Emil Fischer did much of the basic work on purines and introduced the term into the chemical literature in the early 20th cent. The two major purines of almost universal distribution in living systems are adenine and guanine.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Purine
We found: 261 results
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187  

 

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32  

 

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books on: Purine  - 187 results

       More book Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
Currents in Biochemical Research, 1956: Twenty-Seven Essays Charting the Present Course of Biochemical Research and Considering the Intimate Relationship of Biochemistry to Medicine, Physiology, and Biology
Book by David E. Green; Interscience Publishers, 1956
Subjects: Biochemistry--Research
...cephalin, fatty acids, sucrose, lactose, purines, pyrimidines, and dinucleotides has been...indirect evidence suggests that some of the purine and pyrimidine carbon enters DNA 29...showed equal transfer of phosphorus and purine carbon 65 , and equal transfer of the...
2.
The Molecular Control of Cellular Activity
Book by John M. Allen; McGraw-Hill, 1962
Subjects: Cytology
3.
A Symposium on Light and Life
Book by William D. McElroy, Bentley Glass; Johns Hopkins Press, 1961
Subjects: Photobiology--Congresses
...formaldehyde, b pyridine, c pyrimidine, and the d purine molecules. The purine molecule, Fig. 5 d , has a lower symmetry than...more electronegative N-atoms versus C-atoms. For purine, with only two symmetry operations. it is immediately...
4.
Life's Origin: The Beginnings of Biological Evolution
Book by J. William Schopf; University of California Press, 2002
Subjects: Life--Origin
...molecules, or monomers amino acids, sugars, purines, pyrimidines, and the like. So, just...also presented a paper, Formation of Purines under Possible Primitive Conditions...biological macromolecules amino acids, purines , and pyrimidines . His answer was wonderfully...
5.
Unity and Diversity in Biochemistry: An Introduction to Chemical Biology
Book by Marcel Florkin, T. Wood; Pergamon Press, 1960
Subjects: Biochemistry
...coenzyme. Thiamine hydrochloride j Purine Derivatives The purine ring results from the condensation of a pyrimidine...Pyrimidine Imidazole Purine Purine forms salts with acids and compounds with...
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journal articles on: Purine  - 32 results

       More journal Results: 1-10 11-20 21-30 31-32 >>  
 
1.
Genetic Variation in Genes Associated with Arsenic Metabolism: Glutathione S-Transferase Omega 1-1 and Purine Nucleoside Phosphorylase Polymorphisms in European and Indigenous Americans *
Journal article by Lizhi Yu, Kelly Kalla, Erin Guthrie, Amy Vidrine, Walter T. Klimecki; Environmental Health Perspectives, Vol. 111, 2003
...glutathione S-transferase omega 1-1 and purine nucleoside phosphorylase polymorphisms...responsible for arsenic metabolism, human purine nucleoside phosphorylase (hNP), which...involved in arsenic biotransformation, human purine nucleoside phosphorylase (hNP) and human...
2.
Developmentally Restricted Genetic Determinants of Human Arsenic Metabolism: Association between Urinary Methylated Arsenic and CYT19 Polymorphisms in Children
Journal article by Maria Mercedes Meza, Lizhi Yu, Yelitza Y. Rodriguez, Mischa Guild, David Thompson, A. Jay Gandolfi, Walter T. Klimecki; Environmental Health Perspectives, Vol. 113, 2005
...involved in arsenic biotransformation: purine nudeoside phosphorylase (PNP), glutathione-S-transferase...erythrocytes and rats--testing the role of purine nucleoside phosphorylase. Toxicol Sci...erythrocytes--a process independent of purine nucleoside phosphorylase. Toxicol Sci...
3.
Genetic Studies of a Cluster of Acute Lymphoblastic Leukemia Cases in Churchill County, Nevada
Journal article by Karen K. Steinberg, Mary V. Relling, Margaret L. Gallagher, Christopher N. Greene, Carol S. Rubin, Deborah French, Adrianne K. Holmes, William L. Carroll, Deborah A. Koontz, Eric J. Sampson, Glen A. Satten; Environmental Health Perspectives, Vol. 115, 2007
Subjects: Cancer research--Genetic aspects, Cancer--Genetic aspects, Cancer--Research, Enzymes--Genetic aspects, Oncology, Experimental--Genetic aspects, United States. Centers for Disease Control and Prevention
...that code for enzymes in the folate and purine pathways. We also included discovery of...focused on include genes in the folate/purine biosynthesis pathway: methylene tetrahydrofolate...code for proteins involved in the folate/purine biosynthesis pathway, in xenobiotic metabolism...
4.
Urinary Trivalent Methylated Arsenic Species in a Population Chronically Exposed to Inorganic Arsenic
Journal article by Olga L. Valenzuela, Victor H. Borja-Aburto, Gonzalo G. Garcia-Vargas, Martha B. Cruz-Gonzalez, Eliud A. Garcia-Montalvo, Emma S. Calderon-Aranda, Luz M. Del Razo; Environmental Health Perspectives, Vol. 113, 2005
...1.18) (Zakharyan et al. 2001) and the purine nucleoside phosphorylase (PNP, EC 2.4...erythrocytes and rats--testing the role of purine nucleoside phosphorylase. Toxicol Sci...Aposhian HV. 2002. Arsenate reductase II. Purine nucleoside phosphorylase in the presence...
5.
Francis Crick
Journal article by Gunther S. Stent; Proceedings of the American Philosophical Society, Vol. 150, 2006
Subjects: Amino acids, Chemicals, Deoxyribonucleic acid--DNA, Genetic engineering, Graduate studies, Hydrogen bonds, Parents & parenting, Religion, University colleges
...five-carbon sugar deoxyribose, to which one of two kinds of purine bases-adenine and guanine-or one of two kinds of pyrimidine...ribose rather than deoxyribose, as in DNA), to each of which one purine base (adenine or guanine) or one pyrimidine base (cytosine or...
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magazine articles on: Purine  - 6 results

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1.
Getting to Know Gout
Magazine article by Ken Flieger; FDA Consumer, Vol. 29, March 1995
Subjects: Gout--Care and treatment
...are associated with gout, as is eating purine-rich foods such as brains, kidneys, liver...like those noted earlier that are rich in purines. The rest we produce ourselves through ordinary metabolism. The body converts purines to uric acid. The level of uric acid in...
2.
Erik Satie's Ballet Uspud: Prime Numbers and the Creation of a New Language with Only Half the Alphabet
Magazine article by Robert Orledge; Musical Times, Vol. 150, Autumn 2009
Subjects: Friendship, Music
...the blessed melou the lame; saint vequin die flayed; sainte purine the unshod; saint plau, preaching friar; sainte benu with a...E 5 GEBU G 7; E 5; BU 23 also EB 7 LUMORE LUMO 61; RE 23 PURINE PU 37: RIN 41; E 5 also IN 23 CHASSEBAIGRE CH 11; A 1; SSE...
3.
Letters
Magazine article; National Review, Vol. 54, May 20, 2002
...basic structural unit of a DNA or RNA molecule. Thus, a "nucleotide" is a ribose or deoxyribose sugar joined to a pyrimidine or purine base and a phosphate group. Nucleotides are not radioactive in the slightest. Joseph T. Leone Madison, Wis. --Jonah Goldberg...
4.
New Drugs, New Alternatives: Understanding Leukemia
Magazine article by Eleanor Mayfield; FDA Consumer, Vol. 26, September 1992
Subjects: Bone marrow transplantation, Bone marrow--Transplantation, Leukemia research--Reports, Leukemia--Drug therapy
...abnormal lymphocytes, a type of white blood cell. The drug belongs to a unique class of medications known as purine analogues. Purines are nitrogen-based molecules used as building blocks of DNA, the basic genetic material of living organisms...
5.
Cetology Now: A Sketch for the Twenty-First Century
Magazine article by Stefan Helmreich; Melville Society Extracts, July 2005
Subjects: American fiction--Analysis, Cetacea--Research, Melville, Herman--Criticism and interpretation, Moby-Dick (Novel)--Criticism and interpretation, Whales--Research
...digital computers employ base two--ones and zeroes--as a calculative ontology, flesh and blood organisms depend on the paired purine and pyrimidine bases of DNA--adenine and guanine and cytosine and thymine--to spell out the codons that summon forth the amino...
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newspaper articles on: Purine  - 26 results

       More newspaper Results: 1-10 11-20 21-26 >>  
 
1.
Pork, Booze and Spicy Foods Are Gout of Order; DR YVONNE CASEY'S COMPLEMENTARY MEDICINE
Newspaper article; Sunday Mail (Glasgow, Scotland), July 18, 2004
...avoidance of acidic and acid-forming foods and drinks is crucial. Cut out all pork and its produce and follow a low purine diet (purine is found in shellfish, yeast, herring, sardines, mackerel and anchovies). Also out is alcohol, specifically red...
2.
I'm 40, Active, with a Fabulous Life.How Could I Have That Old Man's Disease? DON'T PASS THE PORT: Gout Sufferer John Niven with His Fiancee Helen Sheerin
Newspaper article; The Mail on Sunday (London, England), April 27, 2008
...kidney and liver, which allcontain lots of purine, the substance that causes excess urate...drink more water, change my diet to less purine-richfoods such as kidney and liver, cut...levels.You should eat moderate amounts of purine-rich foods such as kidney, liver,veal...
3.
Fish-Oil Supplements Not a Risk for Gout
Newspaper article; Daily Herald (Arlington Heights, IL), October 22, 2008
Subjects: Gout, Purines
...acid during their metabolic breakdown. Purines are substances that turn into uric acid...risk for gout are typically put on a low-purine diet. Some fish and shellfish are on a list of high-purine foods, and these include sardines, herring...
4.
Dr Miriam: Pain Put to the Acid Test HEALTH FOCUS: GOUT
Newspaper article; The Mirror (London, England), January 13, 2005
...factors linked with gout are... High purine diet (red meat, poultry, offal, seafood...considered at risk. The high level of purines - a chemical that converts into uric acid...the urinary tract. Increased levels of purine (a product of DNA) can raise the level...
5.
Update on Gout; "A Pox of This Gout! or a Gout of This Pox! for the One or the Other Plays the Rogue with My Great Toe." - William Shakespeare (1564-1616), English Poet and Playwright Falstaff, in Henry IV, Part 2, Act 1, Sc. 2, L. 243-5
Newspaper article; Manila Bulletin, September 23, 2007
Subjects: Gout, Poets
...uric acid, a natural byproduct of the breakdown of purines, accumulates. Purines are natural substances found in our bodys cells...animals. Now normally, ingested food and drink with purines are broken down into uric acid. Uric acid in turn...
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encyclopedia articles on: Purine  - 10 results

       More encyclopedia Results: 1-10 >>  
 
1.
Purine
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
PURINE type of organic base found in the nucleotides and...German chemist Emil Fischer did much of the basic work on purines and introduced the term into the chemical literature in the early 20th cent. The two major purines of almost universal distribution in living systems are...
2.
Uric Acid
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...odorless, tasteless crystalline substance formed as a result of purine degradation in man, other primates, dalmatians, birds, snakes...aspartic acid , and glutamine , which combine to form purines and finally uric acid; these so-called uricotelic organisms...
3.
Guanine
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
GUANINE gwa nen, organic base of the purine family. It was reported (1846) to be in the guano of birds; later (1879 84) it was established as one of the major constituents...
4.
Adenine
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
ADENINE ad nin, nin, nen, organic base of the purine family. Adenine combines with the sugar ribose to form adenosine, which in turn can be bonded with from one to three phosphoric...
5.
Nucleotide
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...kle tid , nyoo , organic substance that serves as a monomer in forming nucleic acids . Nucleotides consist of either a purine or a pyrimidine base, a ribose or deoxyribose, and a phosphate group. Adenosine triphosphate serves as the principle...
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