Zobrazeno 1 - 10 of 45 pro vyhledávání: '"Kazimierz L. Wierzchowski"'
1
Mg2+-modulated KMnO4 reactivity of thymines in the open transcription complex reflects variation in the negative electrostatic potential along the separated DNA strands
Autor: Tomasz Łoziński, Kazimierz L. Wierzchowski
Publikováno v: FEBS Journal. 272:2838-2853
There is still a controversy over the mechanism of promoter DNA strand separation upon open transcription complex (RPo) formation by Escherichia coli RNA polymerase: is it a single or a stepwise process controlled by Mg2+ ions and temperature? To res
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fd06256808b485bb047fd7f6ba6de30
https://doi.org/10.1111/j.1742-4658.2005.04705.x
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2
Effects of distortions by A-tracts of promoter B-DNA spacer region on the kinetics of open complex formation by Escherichia coli RNA polymerase
Autor: Tomasz Łoziński, Iwona K Kolasa, Kazimierz L. Wierzchowski
Publikováno v: Acta Biochimica Polonica. 50:909-920
A-tracts in DNA due to their structural morphology distinctly different from the canonical B-DNA form play an important role in specific recognition of bacterial upstream promoter elements by the carboxyl terminal domain of RNA polymerase alpha subun
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a87928acb3acd890710e1089f68003d2
https://doi.org/10.18388/abp.2003_3623
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3
Effect of A(n) tracts within the UP element proximal subsite of a model promoter on kinetics of open complex formation by Escherichia coli RNA polymerase
Autor: Iwona K Kolasa, Kazimierz L. Wierzchowski, Tomasz Lozinski
Publikováno v: Acta Biochimica Polonica. 49:659-669
In the open transcription complex (RPo), Escherichia coli RNA polymerase sigma(70) and alpha subunits are known to be in contact with each other and with the promoter region overlapping the -35 hexamer and the proximal part of the UP element. To prob
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc5d3333071cfa7e26878517299309cc
https://doi.org/10.18388/abp.2002_3775
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4
Mg2+ does not induce isomerization of the open transcription complex of Escherichia coli RNA polymerase at the model Pa promoter bearing consensus -10 and -35 hexamers
Autor: Kazimierz L. Wierzchowski, Tomasz Lozinski, Iwona K Kolasa
Publikováno v: Acta Biochimica Polonica. 48:985-994
The kinetics and thermodynamics of the formation of the transcriptional open complex (RPo) by Escherichia coli RNA polymerase at the synthetic Pa promoter bearing consensus -10 and -35 recognition hexamers were studied in vitro. Previously, this prom
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be31af1aeec65514820e5c833cee6162
https://doi.org/10.18388/abp.2001_3861
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5
Pulse Radiolysis Studies of Intramolecular Electron Transfer in Model Peptides and Proteins. 8. Trp[NH•+] → Tyr[O•] Radical Transformation in H-Trp-(Pro)n-Tyr-OH, n = 3−5, Series of Peptides
Autor: Jarosław Poznański, Krzysztof Bobrowski, Kazimierz L. Wierzchowski, Jerzy Holcman
Publikováno v: The Journal of Physical Chemistry B. 103:10316-10324
The kinetics of intramolecular long-range electron transfer (LRET) between the protonated tryptophan indolyl radical cation Trp[NH•+], remaining in equilibrium with its neutral Trp[N•] form, and ty...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49a9cfdb01ec3fdbc25c04d582771885
https://doi.org/10.1021/jp992178h
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6
Intramolecular electron transfer between tryptophan radical and tyrosine in oligoproline-bridged model peptides and hen egg-white lysozyme
Autor: Kazimierz L. Wierzchowski
Publikováno v: Acta Biochimica Polonica. 44:627-644
Long range electron transfer (LRET) across protein matrix underlies all one-electron cellular redox reactions. Elucidation of molecular electron transfer pathways and parametrization of their relative efficiency is one of the most challenging problem
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e31f3a463f189435f272ce0328137226
https://doi.org/10.18388/abp.1997_4366
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7
Thermochemistry of aqueous solutions of alkylated nucleic acid bases. IX. Enthalpies of hydration of 9-methyl-8-alkyladenines and 6,9-dimethyl-8-alkyladenines
Autor: Kazimierz L. Wierzchowski, Wojciech Zielenkiewicz, A. Zielenkiewicz
Publikováno v: Journal of Solution Chemistry. 23:1125-1131
Enthalpies of solution in water, ΔH sol o , and enthalpies of sublimation, ΔH sub o , were determined experimentally for a number of crystalline derivatives of adenine: 6,8,9-trimethyladenine; 6,9-dimethyl-8-ethyladenine; 6,9-dimethyl-8-propyladeni
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::667f4bf04a89125cf544590fe7db123e
https://doi.org/10.1007/bf00976261
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8
Apparent molar heat capacities of some alkyl derivatives of 2-aminopurine, adenine and guanine in dilute aqueous solution at 25°C
Autor: Wojciech Zielenkiewicz, A. Zielenkiewicz, Kazimierz L. Wierzchowski
Publikováno v: Thermochimica Acta. 237:49-53
The apparent molar heat capacities Cp,φ, and densities of adenine, 2-aminopurine, 9-methyladenine, 2,2-dimethylaminopurine, 9-ethylguanine, 2-methylamino-9-methylpurine, 2-dimethylamino-9-methylpurine, 9-methyl-2-butyladenine, and 6,9-dimethyl-8-but
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b477876f7c1e9abb07c0e84b498cb246
https://doi.org/10.1016/0040-6031(94)85183-2
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10
Thermochemistry of aqueous solutions of alkylated nucleic acid bases. VIII. Enthalpies of hydration of 6-alkyluracils
Autor: Kazimierz L. Wierzchowski, A. Zielenkiewicz, Wojciech Zielenkiewicz
Publikováno v: Journal of Solution Chemistry. 22:975-981
Enthalpies of solution in water ΔHsolo and enthalpies of sublimation ΔHsubo were determined for a number of crystalline derivatives of uracil: 1,6-dimethyluracil (m21,6Ura), 1,3,6-trimethyluracil (m31,3,6Ura), 6-ethyl-1,3-dimethyluracil (e6m21,3Ura
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0928e48122830a691bc42dfd83a1f190
https://doi.org/10.1007/bf00647721
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