Results 181 to 190 of about 1,785 (203)

Biopterin: Reduced form in Ascaris lumbricoides

Experimental Parasitology, 1970
Abstract A blue fluorescent substance which was supposed to be “Ascaris-blue” was extracted from Ascaris muscle. After Chromatographic purification, the substance was identified as biopterin, 2-amino-4-hydroxy-6-(erythro-1′, 2′-dihydroxypropyl)pteridine.
openaire   +2 more sources

Synthesis of biopterin and related pterin glycosides

IUBMB Life, 2013
AbstractCertain pterins having a hydroxyalkyl side chain at C‐6 have been found as glycosidic forms in certain prokaryotes, such as 2′‐O‐(α‐D‐glucopyranosyl)biopterin from various kinds of cyanobacteria, and limipterin from a green sulfur photosynthetic bacterium.
Tadashi, Hanaya, Hiroshi, Yamamoto
openaire   +2 more sources

A new synthesis of biopterin

Journal of the Chemical Society C: Organic, 1969
An unambiguous synthesis of biopterin [2-amino-6-(L-erythro-1,2-dihydroxypropyl)pteridin-4-(3H)-one] is described; based on an improved synthesis of L-neopterin. The synthesis yields biopterin, a naturally occurring pteridine, in a pure, crystalline form without recourse to chromatography. D-Biopterin and D-neopterin are also described.
K. J. M. Andrews, W. E. Barber, B. P. Tong   +2 more
openaire   +1 more source

Hyperphenylalaninaemia caused by defects in biopterin metabolism

Journal of Inherited Metabolic Disease, 1985
AbstractThe hepatic phenylalanine hydroxylating system consists of three essential components, phenylalanine hydroxylase, dihydropteridine reductase and the non‐protein coenzyme, tetrahydrobiopterin. The reductase and the pterin coenzyme are also essential components of the tyrosine and tryptophan hydroxylating systems.
openaire   +2 more sources

New aspects in biopterin biosyntheses

1981
A human kidney preparation which catalyzes the conversion of D-erythro-dihydroneopterin triphosphate (NeH2P3) to dihydrobiopterin (BH2), sepiapterin, pyruvate and pterin in the presence of Mg++ and NADPH was studied. After incubation with NeH2P3, the formation of Tanaka’s compound X (probably 6-(1’,2’-dioxopropyl)-7,8-dihydropterin) could be proven as ...
H-Ch Curtius, M Häusermann, A Niederwieser, W Endres, M Viscontini   +4 more
openaire   +1 more source

BIOPTERIN AND ORGAN TRANSPLANTATION

The Lancet, 1988
J L, Dhondt, M P, Walter, F, Bauters, J P, Jouet   +3 more
openaire   +2 more sources

Reindarstellung von Biopterin und 7-Biopterin

Hoppe-Seyler´s Zeitschrift für physiologische Chemie, 1962
H. Rembold, H. Metzger
openaire   +1 more source

BIOPTERIN DERIVATIVES IN SENILE DEMENTIA

The Lancet, 1979
R J, Leeming, J A, Blair, V, Melikian
openaire   +2 more sources

Biopterin and Folic Acid Deficiency

The American Journal of Clinical Nutrition, 1967
A F, Fleming, H P, Broquist
openaire   +2 more sources

Biopterin

2008
openaire   +2 more sources