Results 181 to 190 of about 9,479 (210)

�ber Pterine bei Algen

Archiv f�r Mikrobiologie, 1962
In elf verschiedenen Gattungen aus sechs Klassen der Algen wurde neben den Streptococcus faecalis-aktiven Verbindungen der Folsaure-Gruppe im Wachstumstest mit Crithidia fasciculata “unkonjugiertes” Pterin nachgewiesen. Dieses besitzt — als Voraussetzung fur seine Wirksamkeit gegenuber Crithidia — an Stelle der p-Aminobenzoylglutaminsaure eine ...
I. Ziegler, H. Ziegler, H. Schmidt
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Inhibition of xanthine oxidase by pterins

Free Radical Research, 1998
The effect of a panel of pterins on xanthine oxidase was investigated by measuring formation of urate from xanthine as well as formazan production from nitroblue tetrazolium. The pterin derivatives, depending on their chemical structure, decreased urate as well as formazan generation: 200 microM neopterin and biopterin suppressed urate formation (90 ...
I, Wede, Z Z, Altindag, B, Widner, H, Wachter, D, Fuchs   +4 more
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Pyrimidine, Purine, Pterine

1958
Die in diesem Kapitel zusammengefassten Verbindungen zeichnen sich durch einen relativ hohen Stickstoffgehalt aus.
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Urinary Pterins in Lesch-Nyhan Syndrome

1991
The Lesch-Nyhan syndrome results from a complete deficiency of the purine salvage enzyme hypoxanthine guanine phosphoribosyltransferase (HPRT E.C.2.4.2.8). Clinical manifestations include muscle hypotonia, torsion dystonia, delayed motor development, compulsive self-mutilative behaviour, and mental handicap, as well as increased quantities of uric acid
I, Sebesta, J, Krijt, S, Kmoch, J, Hyanek   +3 more
openaire   +2 more sources

Pterine reductase

Biochimica et Biophysica Acta, 1958
B E, WRIGHT, M L, ANDERSON
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Calcium pterin as an antitumor agent

International Journal of Pharmaceutics, 2004
A series of in vivo studies are reported that provide evidence for an immunologically mediated mechanism for the antitumor response from a calcium pterin (CaPterin) suspension. Strong antitumor efficacy was demonstrated in fully immunocompetent female C3H/HeN-MTV+ mice (retired breeders) presenting spontaneous mammary gland adenocarcinomas.
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pterin, n.

2023
openaire   +1 more source

Pterins and Related Enzymes

2008
Blau, N, Thöny, B
openaire   +1 more source

Über neue Pterine

Justus Liebigs Annalen der Chemie, 1936
Clemens Schöpf, Erich Becker
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Pterin Monooxygenases

1985
Llyod L. Ingraham, Damon L. Meyer
openaire   +1 more source