Identification of Pterin Binding Sites on Class I HLA Molecules Associated with the Interleukin 2 Receptor [PDF]
, 1991 Irmgard Ziegler +2 more
openalex +1 more source
The folic acid antagonists and their use is the treatment of acute leukemia [PDF]
, 1954 Thesis (M.D.)--Boston ...
Boyd, George K.
core
Theoretical Stereostructure of the Neutral Form of Natural Tetrahydrobiopterin
Pteridines, 1993 The absolute conformation and the reactivity of atoms of the neutral form of natural tetrahydrobiopterin [(6R)-6-(L-erythro-1 ′,2′ -dihydroxypropyl)-5.6.7.8-tetrahydropterin] was determined by the Molecular-Orbital method within the MINDO/3 framework ...
Katoh Setsuko +2 more
doaj +1 more source
Dihydrofolate reductase of Streptococcus faecium II. Purification and some properties of two dihydrofolate reductases from the Amethopterin-resistant mutant, Streptococcus Faecium Var. Durans Strain A [PDF]
, 1968 From a single amethopterin-resistant organism, Streptococcus faecium var. durans strain A, two different dihydrofolate reductases have been obtained as essentially homogeneous proteins in good yield.
Blakley, R. L., Nixon, P. F.
core
Pteridines, 1993 In order to investigate the stabilities of different tautomeric forms of pteridine derivatives with a phenacetyl side chain in the 6- or 7-position, we have performed ab initio quantum chemical geometry optimizations of both the keto form and the ...
Reibnegger Gilbert +2 more
doaj +1 more source
Folic Acid With Fluorene: A Complexation Study by UV and FTIR Spectroscopies
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017 The complexation between folic acid and a typical polyaromatic hydrocarbon, fluorene, was investigated using FTIR and UV spectra. Appearance of a new IR band at 2401cm−1 demonstrates that NH2–C=N moiety on pterin ring in folic acid is protonated ...
K. K. Hammud +4 more
doaj
First Synthesis of a Representative, Natural Pterin Glycoside: 2’-O-(α-D-Glucopyranosyl)biopterin [PDF]
, 2009 Glycosylation of N(2)-(N,N-dimethylaminomethylene)-1’-O-(4-methoxybenzyl)-3-[2-(4-nitrophenyl) ethyl]biopterin (14) with the novel donor 4,6-di-O-acetyl-2,3-di-O-(4-methoxybenzyl)-α-D-glucopyranosyl bromide (19) in the presence of silver triflate and ...
Hanaya, Tadashi +2 more
core
GROWTH INHIBITION OF BACTERIA BY SYNTHETIC PTERINS
, 1947 Louise J. Daniel +3 more
openalex +2 more sources
Journal of Biological Chemistry, 1949 O H, LOWRY, O A, BESSEY, E J, CRAWFORD
openaire +2 more sources
Tetrahydrobiopterin and inherited hyperphenylalaninemias
The Turkish Journal of Pediatrics, 1996 Tetrahydrobiopterin deficiency, a variant of hyperphenylalaninemia, may be caused by deficiency of one of the following enzymes: guanosine triphosphate cyclohydrolase 1,6-pyruvoyltetrahydropterin synthase, dihydropteridin reductase and pterin-4a ...
N Blau, B Thony, M Spada, A Ponzone
doaj