Zobrazeno 1 - 10 of 34 pro vyhledávání: '"J. A. PARDOEN"'
1
Synthesis of 10-, 11-, 19- and 20-mono-13C-retinal
Autor: Johan Lugtenburg, H. N. Neijenesch, J. A. Pardoen, Peter Mulder
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 102:341-347
The 10-, 11-, 19- and 20-mono-13C-all-trans-retinals were synthesized with >98% chemical purity and 92% 13C incorporation from 13C-labelled acetonitrile and 13C-labelled methyl iodide. Their 13C-13C and 13C-1H NMR coupling constants were measured.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c20118385379a4571b3d0755b5bb333
https://doi.org/10.1002/recl.19831020701
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2
Synthesis of retinals labelled at positions 14 and 15 (with 13C and/or 2H)
Autor: C. Winkel, Johan Lugtenburg, Peter Mulder, J. A. Pardoen
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 103:135-141
Eight retinals labelled at positions 14 and 15 with 13C and/or 2H were obtained with >98% chemical purity, 92% 13C incorporation, 95% 2H incorporation at position 14 and 99% 2H incorporation at position 15. (14-13C)retinal, (15-13C)retinal and (14,15
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eac8bdb07e1bf224c01f4d2c546a4a12
https://doi.org/10.1002/recl.19841030408
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3
Solid-state carbon-13 NMR studies of retinal in bacteriorhodopsin
Autor: Gerard S. Harbison, Steven O. Smith, Johan Lugtenburg, Richard A. Mathies, Judith Herzfeld, Robert G. Griffin, J. A. Pardoen, Patrick P. J. Mulder
Publikováno v: Biochemistry. 23:2662-2667
Solid-state /sup 13/C magic-angle sample spinning (MASS) NMR has been used to study lyophilized dark-adapted purple membrane containing /sup 13/C-labeled retinals. C-10, C-11, and C-12-labeled derivatives each showed two lines, assigned to the coexis
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::751f8e68629ca7b698f8e16f9c5e85e7
https://doi.org/10.1021/bi00307a019
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4
Raman microscope and quantum yield studies on the primary photochemistry of A2-visual pigments
Autor: Richard A. Mathies, B. Barry, Johan Lugtenburg, J. A. Pardoen
Publikováno v: Biophysical Journal. 52(4):603-610
The 77-K resonance Raman vibrational spectrum of intact goldfish rod photoreceptors containing 3,4-dehydro (A2) retinal is dominated by scattering from the 9-cis component of the steady state at all excitation wavelengths. Intact goldfish photorecept
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee31d2760bf14c3af75134089721fc46
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6
Vibrational analysis of the all-trans retinal protonated Schiff base
Autor: C. Winkel, J. A. Pardoen, Anne B. Myers, Steven O. Smith, E. M. M. Van Den Berg, Johan Lugtenburg, Richard A. Mathies
Publikováno v: Biophysical Journal. 47(5):653-664
We have obtained Raman spectra of a series of all-trans retinal protonated Schiff-base isotopic derivatives. 13C-substitutions were made at the 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 positions while deuteration was performed at position 15. Based
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8137fb547243ee6e353c32512d0483e9
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7
Pyrromethene-BF2 complexes (4,4′-difluoro-4-bora-3a,4a-diaza-s -indacenes). Synthesis and luminescence properties
Autor: J. A. Pardoen, Johan Lugtenburg, J. A. van Koeveringe, E. Vos de Wael
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 96:306-309
BF2 complexes of alkylated pyrromethenes were prepared by reacting the corresponding pyrromethenes with BF3·OEt2 under basic conditions. A striking aspect of these complexes is a pronounced fluorescence in organic solvents, even at room temperature,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c95ad4144b5e42b70ba620065a95066
https://doi.org/10.1002/recl.19770961205
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8
Vibrational analysis of 13-cis-retinal
Autor: Albert Broek, Bo Curry, J. A. Pardoen, Patrick P. J. Mulder, Johan Lugtenburg, Richard A. Mathies, I. Palings
Publikováno v: The Journal of Physical Chemistry. 88:688-702
Spectre de preresonance Raman, et spectre IR, du cis-retinal-13 a l'etat normal et deuterie, et de ses derives; explication des principales differences entre les isomeres cis-13 et tout-trans
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::067c9fc7a9e979250814ebb4de0ecbed
https://doi.org/10.1021/j150648a015
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9
Fourier transform infrared evidence for Schiff base alteration in the first step of the bacteriorhodopsin photocycle
Autor: J. A. Pardoen, Johan Lugtenburg, Kenneth J. Rothschild, Paul D. Roepe
Publikováno v: ResearcherID
The first step of the bacteriorhodopsin (bR) photocycle involves the formation of a red-shifted product, K. Fourier transform infrared difference spectra of the bR570 to K630 transition at 81 K has been measured for bR containing different isotopic s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88ddeb896e01903118903a30849ee3fd
https://doi.org/10.1021/bi00320a031
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10
Synthesis of retinals isotopically labelled at positions 11, 12, 14 and 20
Autor: C. Winkel, E. M. M. van den Berg, J. A. Pardoen, Johan Lugtenburg
Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 105:92-98
Five retinals, having different combinations of 2H, with one having 2H and 13C labels at positions 11, 12, 14 and 20, were obtained with a chemical purity of above 98%, a level of 2H enrichment greater than 95% and with 13C enrichment of 99%. The ret
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62e046044d39f72a974418fc32228ec1
https://doi.org/10.1002/recl.19861050304
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