Results 221 to 230 of about 33,865 (256)

Characteristics of 8-substituted adenine nucleotide derivatives utilized in affinity chromatography

Archives of Biochemistry and Biophysics, 1975
Abstract Improved methods for the preparation of several 8-substituted adenine nucleotide derivatives are described. Enzymatic properties of these 8-substituted derivatives were investigated by steady state kinetic and inhibition studies. It was found that 8-(6-aminohexyl)-amino DPN+ and TPN+ exhibit relatively high affinity for most DPN+ and TPN ...
, Lee C-Y, N O, Kaplan
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Photochemistry and DNA-affinity of some pyrimidine-substituted styryl-azinium iodides

Photochemical & Photobiological Sciences, 2011
The relaxation properties of the excited states of three iodides of trans-1,2-diarylethene analogues (where one aryl group is a methylpyridinium, methylquinolinium or dimethylimidazolium group and the other one is a phenyl ring para-substituted by a pyrimidine ring) have been investigated in buffered (pH = 7) aqueous solution.
Mazzoli A, Carlotti B, BONACCORSO, CARMELA, FORTUNA, COSIMO GIANLUCA, Mazzucato U, Miolo G, Spalletti A.   +6 more
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Synthesis and monoamine transporter affinity of 3-aryl substituted trop-2-enes

Bioorganic & Medicinal Chemistry Letters, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Aleksej, Krunic, S V Santhana, Mariappan, Marteen E A, Reith, William J, Dunn   +3 more
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Impact of sulfur substitution on biotin binding affinity to streptavidin

Bioorganic Chemistry
In this study, we investigated how the replacement of the tetrahydrothiophene ring of biotin with either an oxolane or (methyl)pyrrolidine moiety may affect its molecular interactions, in an effort to identify alternative affinity ligands suitable for in vitro and in vivo applications in synthetic biology.
Groaz, Elisabetta, Modranka, Jakub, Ploschik, Damian, Jabgunde, Amit, Froeyen, Mathy, Jang, Mi-Yeon, Wagenknecht, Hans-Achim, Herdewijn, Piet   +7 more
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7-Substituted-melatonin and 7-substituted-1-methylmelatonin analogues: Effect of substituents on potency and binding affinity

Bioorganic & Medicinal Chemistry, 2007
A series of 7-substituted melatonin and 1-methylmelatonin analogues were prepared and tested against human and amphibian melatonin receptors. 7-Substituents reduced the agonist potency of all the analogues in the Xenopus laevis melanophore assay, 7-bromomelatonin (5d) and N-butanoyl 7-bromo-5-methoxytryptamine (5f) being the most active compounds, but ...
Faust, Rüdiger, Garratt, Peter J., Pérez, Maria Angeles Trujillo, Piccio, Vincent J.-D., Madsen, Christian, Stenstrøm, Ane, Frølund, Bente Flensborg, Davidson, Kathryn, Teh, Muy-Teck, Sugden, David   +9 more
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Theoretical proton affinities of histamine, amthamine and some substituted derivatives

Journal of Molecular Structure: THEOCHEM, 1998
Abstract We have characterized tautomers and conformers (T/Cs) of 4-methyl, 4-chloro, 4-nitro, N α methyl histamines (4(5)-2′-aminoethylimidazole), amthamine (2-amino-5-(2′-aminoethyl)-4-methylthiazol) and amthamine derivatives (2-amino-5-(2′-aminoethyl)-thiazole, and 4-methyl-5-(2′-aminoethyl)-thiazole) neutral and as monocations by means of the ...
A. Hernández-Laguna, Z. Cruz-Rodrı́guez, R. Notario   +2 more
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The Transport and Affinity of Substituted Benzenes in Soybean Stems

Journal of Experimental Botany, 1987
McCrady, J. K., McFarlane, C. and Lindstrom, F. T. 1987. The transport and affinity of substituted benzenes in soybean stems.—J. exp. Bot. 38: 1875-1890. The sorption of non-ionized substituted benzenes in the xylem tissue of excised soybean stems was studied.
JOEL K. McCRADY, CRAIG McFARLANE, F. T. LINDSTROM   +2 more
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Correlation of the hydride affinities of substituted aromatic carbocations and the proton affinities of substituted benzenes calculated by MNDO with .sigma.+ substituent constants

The Journal of Organic Chemistry, 1991
MNDO-calculated heats of formation and ionization potentials of 248 structures involving substituted toluenes, diphenylmethanes (DPMH), xanthenes (XAN), 9H,10H-acridines (ACR), 9H-10-N-methylacridines (N-MACR), benzenes, and the corresponding carbocations are ...
Rafik Karaman, Jun Tsu Luke Huang, James L. Fry   +2 more
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Proton affinity of substituted naphthalenes

Journal of Physical Organic Chemistry, 1999
M. Eckert-Maksić, I. Antol, M. Klessinger, Z. B. Maksić   +3 more
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Electron affinities of substituted aromatic compounds

The Journal of Physical Chemistry, 1975
W. E. Wentworth, Lilly Wang Kao, Ralph S. Becker   +2 more
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