pterin

(ˈtɛrɪn)

(Chemistry) any of a group of substances which occur naturally as insect pigments

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2 The BH4 is synthesised from guanosine triphosphate cyclohydrolase (GTPCH), 6-pyruvoyl-tetrahydropterin synthase (PTPS), sepiapterin reductase (SR) and is regenerated by dihydropteridine reductase (DHPR) and pterin carbinolamine-4-dehydratase (PCD).

Retrospective Study of Patients with Hyperphenylalaninemia-Experience from a Tertiary Care Center in Pakistan

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

The domain architecture consisting of Pterin domain from 230-498 residues and HPPK domain from 47-172 amino acid residues was evaluated using the Chimera program for seabuckthorn protein.

A Novel Hydroxymethyldihydropterin Pyrophosphokinase-dihydropteroate Synthase (HPPK-DHPS) Gene from a Nutraceutical Plant Seabuckthorn, Involved in Folate Pathway is Predominantly Expressed in Fruit Tissue

Urine pterin and dihydropteridine reductase activity analysis should be routinely performed to rule out BH4 deficiency.

Phenylalanine Hydroxylase Deficiency and Citrin Deficiency in a Chinese Infant

IL-6 has been shown to be modulated by calcium pterin, similar in structure to calcium folate which is more potent.

Immunomodulatory Formula Offered as Prospective Ebola Therapeutic

Sulfadoxine is a competitive inhibitor of the malarial enzyme dihydropteroate synthetase required for the condensation of p-aminobenzoate (pABA) and pterin in the de novo synthesis of folate.

Effect of iron/folic acid supplementation on the outcome of malaria episodes treated with sulfadoxine-pyrimethamine

(i-a) Photolyase is a monomeric protein of 55- 65 kDa with two chromophore cofactors, a pterin in the form of 5-10-methenyltetrahydrofolate

Insight into the DNA repair mechanism operating during cell cycle checkpoints in eukaryotic cells

"In the female striped plateau lizard the orange-coloured patches they develop during the reproductive season are based on pterin pigments, not on carotenoids, so this trade-off between ornaments and eggs may be eliminated," said Stacey Weiss.

Why flashy females are great mates

These are transformed to yield heterocyclic compounds that are analogs of the ring systems of pyridine, pyrimidine, thiazole, pterin, and isoalloxazine (Begley, 2006).

The canonical network of autotrophic intermediary metabolism: minimal metabolome of a reductive chemoautotroph

Folates are tripartite molecules, composed of pterin, p-aminobenzoate (pABA), and glutamate moieties (Fig.

Folate synthesis and metabolism in plants and prospects for biofortification

NOS contains the internal reductants NADPH and flavins, but without a fully-reduced (tetrahydro) pterin bound like BH4, product is not formed.

An investigation into the role that tetrahydrobiopterin plays in nitric oxide synthase