Results 101 to 110 of about 9,467 (211)

The folic acid antagonists and their use is the treatment of acute leukemia [PDF]

, 1954
Thesis (M.D.)--Boston ...
Boyd, George K.
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Bioelectrochemical conversion of CO2 to value added product formate using engineered Methylobacterium extorquens [PDF]

, 2018
The conversion of carbon dioxide to formate is a fundamental step for building C1 chemical platforms. Methylobacterium extorquens AM1 was reported to show remarkable activity converting carbon dioxide into formate.
A Bassegoda, A Belle, A Otto, CA Huff, CJ Marx, CJ Marx, CJ Marx, DH Nam, FM Girio, FM Gírio, H Hwang, HD Matthews, JJ Moura, JY Jeong, K Sakai, K Sakai, K Schuchmann, L Chistoserdova, L Chistoserdova, M Aresta, P Kang, PP Hellstén, S Bajracharya, S Bajracharya, S Lee, S Solomon, S Srikanth, SJ Davis, T Hartmann, T Reda, T Vo, W Wang, Y Zhang   +32 more
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Mutationen im PTS-Gen und mögliche Auswirkungen auf Funktion und Struktur der 6-Pyruvoyl-Tetrahydropterin-Synthase [PDF]

, 2002
Background: Research on Juvenile Idiopathic Arthritis (JIA) should support patients, caregivers/parents (carers) and clinicians to make important decisions in the consulting room and eventually to improve the lives of patients with JIA.
Armbrust, Wineke, Bookelman, Sanne L., Cappon, Jeannette, Cowan, Katherine, De Boer, Joke, Dedding, Christine, Fernhout, Marlous J., Jongsma, Karin R., Kamphuis, Sylvia, Lelieveld, Otto T.H.M., Muller, Petra C.E.Hissink, Olsder, Wendy, Schatorjé, Ellen, Schoemaker, Casper G., Swart, Joost F., Van Den Berg, J. Merlijn, Van Der Net, Janjaap, Van Loosdregt, Jorg, Van Rensen, Annemiek, Van Vliet, Rens, Vastert, Sebastiaan J., Versluis, Els, Verwoerd, Anouk, Whiting, Caroline, Wulffraat, Nico M.   +24 more
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Photosensitization of peptides and proteins by pterin derivatives

Pteridines, 2017
Proteins are one of the preferential targets of the photosensitized damaging effects of ultraviolet (UV) radiation on biological system. Pterins belong to a family of heterocyclic compounds, which are widespread in living systems and participate in ...
Dantola Maria Laura, Reid Lara O., Castaño Carolina, Lorente Carolina, Oliveros Esther, Thomas Andrés H.   +5 more
doaj   +1 more source

A Pterin-Dependent Signaling Pathway Regulates a Dual-Function Diguanylate Cyclase-Phosphodiesterase Controlling Surface Attachment in Agrobacterium tumefaciens

mBio, 2015
The motile-to-sessile transition is an important lifestyle switch in diverse bacteria and is often regulated by the intracellular second messenger cyclic diguanylate monophosphate (c-di-GMP). In general, high c-di-GMP concentrations promote attachment to
Nathan Feirer, Jing Xu, Kylie D. Allen, Benjamin J. Koestler, Eric L. Bruger, Christopher M. Waters, Robert H. White, Clay Fuqua   +7 more
doaj   +1 more source

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, Pfleiderer, Wolfgang, Yamamoto, Hiroshi   +2 more
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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, M. M. Mohammed, L. M. Abdul Raouf, S. S. Ibrahim, D. E. Znad   +4 more
doaj  

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, Sueoka Terumi, Kurihara Teruo   +2 more
doaj   +1 more source

Ab Initio Quantum Chemical Calculations on the Stability of Different Tautomers of 6- and 7-Phenacetyl Pterin

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, Denny Brian J., Wachter Helmut   +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.
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