pter·i·dine

(tĕr′ĭ-dēn′)

1. A yellow crystalline compound, C₆H₄N₂, having two fused six-member aromatic rings each containing two nitrogen atoms and four carbon atoms. One of the rings is a pyrimidine; the other is a pyrazine.

2. Any of a group of organic compounds derived from this compound, including folic acid and the pigments of butterfly wings.

[German Pteridin : Pter(in), pigment of insect wings (from Greek pteron, wing; see -pter) + -id, -ide + -in, -ine.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pteridine

(ˈtɛrɪˌdiːn)

(Chemistry) chem a yellow, crystalline, heteroaromatic compound having a bicyclic molecular structure; any substituted derivative of this, examples of which occur naturally, esp as vitamins of the B group and insect pigments. Formula: C6H4N4

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Mentioned in

References in periodicals archive

Hunter, Pteridine Reductase Mechanism Correlates Pterin Metabolism with Drug Resistance in Trypanosomatid Parasites, Nat.

Synthesis, Characterization, Anti-leishmanial Activity and in silico Studies of 5-(4-Methoxyphenyl)-2-(undecylthio)-1,3,4-oxadiazole

Fu-ture work will focus on identifying how GCH2 was lost as well as other genes of the xanthophore or pteridine pathways that may be absent from mammals and birds.

BIOLOGICAL SCIENCES POSTER ABSTRACTS

The folic acid chemical structure consists of a pteridine ring, a p-aminobenzoic acid, and a molecule of L-glutamic acid (2,3).

Folic acid supplementation among pregnant women in Southern Brazil: prevalence and factors associated

Neopterin is a pteridine derivative produced by monocytes and macrophages primarily as a response to interferon gamma stimulation induced by the activation of the cellular immune system.

Relationship between leptin and neopterin levels and disease activation parameters in patients with rheumatoid arthritis

Among the biomarkers for diagnosis and prognosis in AMI, the Neopterin, a pteridine derivative is considered to be one of the new novel biomarkers, which is found to be elevated in patients with AMI (1).

Serum neopterin: a new novel biomarker in acute myocardial infarction

(2,5,8,13) Folates also differ from folic acid "in the extent of the reduction state of the pteroyl group, the nature of the substituents on the pteridine ring and the number of glutamyl residues attached to the pteroyl group." (5)

Folic acid is dangerous, but folates found in foods are healthy

Peroxide and pteridine: a hypothesis on the regulation of macrophage antimicrobial activity by interferon gamma.

Comparison of in vitro tests for antioxidant and immunomodulatory capacities of compounds