Results 121 to 130 of about 4,377 (174)

Standardized Workflows for Time-Resolved Singlet Oxygen Quantification in Aqueous Systems. [PDF]

JACS Au
Fernandez H, Junqueira HC, Hess LFS, Sales MVS, Pinheiro AC, Arruda C, Severino D, Hackbarth S, Quina FH, Thomas AH, Lorente C, Baptista MS, Bastos EL.   +12 more
europepmc   +1 more source

Assessment of Free Energies From Electrostatic Embedding Density Functional Tight Binding-Based/Molecular Mechanics in Periodic Boundary Conditions. [PDF]

J Comput Chem
Bonfrate S, Park W, Trejo-Zamora D, Ferré N, Ho Choi C, Huix-Rotllant M.   +5 more
europepmc   +1 more source

The Final Step in Molybdenum Cofactor Biosynthesis-A Historical View. [PDF]

Molecules
Mendel RR, Oliphant KD.
europepmc   +1 more source

Damselflies Overcome Color Saturation Barriers of Photonic Glasses via Structural Dispersion and Pigment Loading

Lemcoff T, Alus L, Batushansky A, Fishman Y, Theodor N, Shavit K, Hyitner L, Kelber A, Haataja JS, Oron D, Palmer BA.   +10 more
europepmc   +1 more source

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Paper Chromatography of Pterins

Nature, 1949
THE detection and identification of pterins in small quantities was carried out by Schopf and Becker1 in the course of their classical work on this class of pigments. They employed a chromatographic technique using 0·004 N aqueous hydrochloric acid or 0·01 N methyl alcoholic hydrochloric acid solutions on micro-absorption columns of alumina or ...
P M, GOOD, A W, JOHNSON
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A Prebiotic Synthesis of Pterins

Chemistry – A European Journal, 2015
AbstractThe genesis of life on Earth is a hypothesis of evolutionary science that can be, at least partially, tested experimentally. The prebiotic synthesis of cofactors or coenzymes is a poorly explored issue, likely because their formation under plausible prebiotic conditions is not clear.
Margarita R, Marín-Yaseli, Cristina, Mompeán, Marta, Ruiz-Bermejo   +2 more
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Pterins and Related Enzymes

2008
Tetrahydrobiopterin(BH4)cofactor is essential for various enzyme activities, including phenylalanine-4-hydroxylase(PAH), tyrosine-3-hydroxylase(TH), tryptophan-5-hydroxylase(TPH), nitric oxide synthase(NOS), and glyceryl-ether monooxygen-ase(GEMO).The de novo biosynthesis pathway of BH4 from guanosine triphosphate (GTP) involves GTP cyclohydrolase I ...
Blau, N, Thöny, B
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In situ detection of pterins by SERS

The Analyst, 2009
Surface enhanced Raman scattering (SERS) has been used to detect specific pterin molecules at sub-nanomolar concentrations. SERS is fast becoming a widely used technique for the sensitive and specific detection of multiple analytes. The information-rich and concentration-dependent spectra obtained from SERS make the technique ideally placed for high ...
Stevenson, Ross, Stokes, Robert J., MacMillan, Donna, Armstrong, David, Faulds, Karen, Wadsworth, Roger, Kununthur, Suma, Suckling, Colin J., Graham, Duncan   +8 more
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Inborn Errors of Pterin Metabolism

Annual Review of Nutrition, 1988
HY PERPHENY LALANINEMIA DUE TO TETRAHYDROBIOPTERIN DEFICIENCy 188 GTP Cyclohydrolase I Deficiency 188 6-Pyruvoyl Tetrahydropterin Synthase Deficiency 189 Dihydropteridine Reductase Deficiency 191 Other Forms ...
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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
openaire   +2 more sources