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Author: vytautas reipa

Displaying records 11 to 20 of 47 records.
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11. Structural Analysis of the Telomerase RNA Pseudoknot Domain by Raman Spectroscopy
Published: 3/1/2006
Authors: Donald H Atha, G Niaura, Vytautas Reipa
Abstract: We have measured the Raman band intensities and frequencies of two 30-mer ribonucleotides that represent the wild type (WT) and dyskeratosis mutant GC (107-108) AG structures of the pseudoknot hairpin region of human telomerase RNA. We have used the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830502

12. Direct spectroeletrochemical titration of glutathione.
Published: 7/1/2005
Author: Vytautas Reipa
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903190

13. Infrared and Raman Spectroscopy Characterization of Biological Products
Published: 1/1/2005
Author: Vytautas Reipa
Abstract: Both infrared and Raman are increasingly applied in biomolecular structure characterization, thus getting acceptance alongside traditional bioanalytical techniques. Physical principles and biological sampling requirements are reviewed. Advanced appli ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830440

14. Direct Spectroelectrochemical Titration of Glutathione
Published: 12/1/2004
Author: Vytautas Reipa
Abstract: Spectroelectrochemistry measurements are used to determine the formal potential E of glutathione. Nernst titration was performed by monitoring disulfide absorption at 258 nm in a thin layer cell. Use of nanocrystalline highly doped tin oxide elect ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830439

15. Substrate binding and the presence of ferredoxin affect the redox properties of the soluble plant Delta(9)-18:0-acyl carrier protein desaturase
Published: 9/23/2004
Authors: Vytautas Reipa, J Shanklin, V L. Vilker
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903192

16. Structural Changes that Accompany the Temperature Dependence of the Formal Potential of Putidaredoxin
Published: 6/1/2004
Authors: Vytautas Reipa, Marcia J Holden, M P. Mayhew, V L. Vilker
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903189

17. Temperature-Induced Structural Changes in Putidaredoxin: A Circular Dichroism and UV-VIS Absorption Study
Published: 6/1/2004
Authors: Vytautas Reipa, Marcia J Holden, M P. Mayhew, V L. Vilker
Abstract: Putidaredoxin (Pdx) is an 11,400 Da iron-sulfur protein that sequentially transfers two electrons to the cytochrome P450cam during the enzymatic cycle of the stereo specific camphor hydroxylation. We report two transitions in the Pdx UV-VIS absorpt ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830425

18. Temperature-induced structural changes in putidaredoxin: a circular dichroism and UV-VIS absorption study
Published: 6/1/2004
Authors: Vytautas Reipa, Marcia J Holden, M P. Mayhew, V L. Vilker
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903187

19. Structural Alterations of the Heme Environment of Cytochrome P450cam and the Y96F Mutant as Deduced by Resonance Raman Spectroscopy
Published: 1/1/2003
Authors: G Niaura, Vytautas Reipa, M P. Mayhew, Marcia J Holden, V L. Vilker
Abstract: Resonance Raman spectroscopy at 2.5 cm-1 resolution was used to probe differences in wild type and Y96F mutant P450cam (CYP101), both with and without bound camphor or styrene substrates. In the substrate-free state, the spin state equilibrium is sh ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830245

20. New Degenerate Metal-Oxide Electrodes for Nearly Reversible Direct Electron Transfer to the Redox Proteins
Published: 4/1/2002
Authors: Gintaras Valincius, Vytautas Reipa, M P. Mayhew, V L. Vilker
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903477