Results 81 to 90 of about 3,589 (204)

Pteridines, LXXVII. C-Acylations of Pteridines by Homolytic Heteroaromatic Substitution

, 1986
Homolytic substitution reactions with acyl radicals proceed with 2,4-diamino- (VI-VIlI) and 4-amino-2-methylthiopteridines (XXVII-XX IX) selectively at position 7 to give the corresponding 7-acyl derivatives IX-XV and XXX-XXXV, respectively, in moderate ...
Baur, Ralph, Ralph Baur, Boruah, Romeseh C., Wolfgang Pfleiderer, Pfleiderer, Wolfgang, Romeseh C. Boruah   +5 more
core  

An in vitro System for Studying Pteridine Biosynthesis In Drosophila melanogaster

Pteridines, 1991
In vitro organ culture is a system especially useful for the study of metabolic pathways and their regulation. This report applies such a system to the study of the biosynthesis of pteridines in Drosophila melanogaster, determining in vitro optimal ...
Escriche B., Silva F. J.
doaj   +1 more source

PTERIDINES IN PHOTOSYNTHESIS [PDF]

Proceedings of the National Academy of Sciences, 1958
R C, Fuller, I C, Anderson, H A, Nathan
openaire   +2 more sources

Purification and Characterization of Sepiapterin Deaminase from the Silkworm, Bombyx mori

Pteridines, 1998
Sepiapterin deaminase has been purified approximately 6,000-told from the larval integument of the lemon mutant of the silkworm by several column chromatographic procedures.
Sawada Hiroshi, Kanekatsu Motoki, Nakagoshi Motoko, Dohke Kenjiro, Iino Teruhiko, Takikawa Shin-Ichiro   +5 more
doaj   +1 more source

What Have We Learned from Cerebrospinal Fluid Studies about Biomarkers for Detecting LRRK2 Parkinson’s Disease Patients and Healthy Subjects with Parkinson’s-Associated LRRK2 Mutations?

Journal of Parkinson’s Disease, 2019
Mutations in the leucine-rich repeat kinase 2 (LRRK2) gene are the most common known cause of autosomal dominant Parkinson’s disease (PD) and sporadic PD (sPD).
David A. Loeffler, Jan O. Aasly, Peter A. LeWitt, Mary P. Coffey   +3 more
doaj   +1 more source

Chemistry and biology of pteridines

, 1979
xxii+713hlm ...
KISLIUK, ROY L., BROWN, GENE M.
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Lethal mutations induced in Drosophila melanogaster by direct or indirect acid of pteridines

, 1984
The experiments described in this paper show than synthetic pteridines, especially biopterin and pterin, injected directly into Drosophila melanogaster induce recessive lethals. On the contrary, -neopterin seems to have little effect.
Ebels, I., Salemink, C.A., l'Hélias, C., Proust, J.   +3 more
core  

Separation of pteridines from blood cells and plasma by reverse-phase high-performance liquid chromatography.

, 1983
In order to determine free and conjugated pteridines, the pteridine-releasing procedure for biological materials (e.g., plasma, blood cells, bone marrow) was optimized and the parameters which influence pteridine release are discussed.
Zeitler, H.J., Andondonskaja-Renz, B.
core   +1 more source

Changes in FeNO, d-ROMs, and BH4 by Intravenous L-Arginine in Children and Its Putative Role in Asthma Treatment

Journal of Asthma and Allergy
Naho Yamamoto,1 Saki Kasuga,1 Daijiro Kabata,2 Myu Ono,1 Sakura Ando,1 Taisuke Hashimoto,1 Shiori Fujikawa,1 Hiroko Fujitani,3 Ayumi Shintani,2 Takashi Hamazaki1 1Department of Pediatrics, Osaka Metropolitan University Graduate School of Medicine, Osaka,
Yamamoto N, Kasuga S, Kabata D, Ono M, Ando S, Hashimoto T, Fujikawa S, Fujitani H, Shintani A, Hamazaki T   +9 more
doaj  

Direct C–H/C–H Coupling of the Azoloannulated Pteridines with Electron Rich (Hetero)Aromatic Compounds

The methods for modification of azoloannulated pteridines with (hetero)­aromatic nucleophiles using a nucleophilic substitution of hydrogen (SNH) methodology have been developed in this work.
Denis A. Gazizov (9120876), Ekaterina F. Zhilina (8991068), Evgeny B. Gorbunov (9120879), Gennady L. Rusinov (1409956), Pavel A. Slepukhin (1489120)   +4 more
core   +2 more sources