Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Lydie Grajcar"'
Autor:
Lydie Grajcar, Marie-Hélène Baron
Publikováno v:
Journal of Raman Spectroscopy. 32:912-918
This work validated a SERS probe able to compare adenyl reactivity in DNA and RNA. A Creighton silver colloid including adenine (A) [or 2′-deoxyadenosine 5′-phosphate (pdA)] from 2 × 10−3 to 2 × 10−8M is stabilized in the absence or presenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3a8d6e79e7e6ee80ff2ac110d2bb495
https://doi.org/10.1002/jrs.760
https://doi.org/10.1002/jrs.760
Publikováno v:
Journal of Raman Spectroscopy. 32:1037-1045
Surface-enhanced Raman spectroscopy (SERS) with an (Ag)n+ substrate detects picomoles of adenyl residues (Ayl) in a mildly salted aqueous medium (10−2M NaCl). Chloride binding to Ayl enhances the Ayl affinity for silver. The SER spectral profile pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52158290639372e257150b15b62c3f43
https://doi.org/10.1002/jrs.796
https://doi.org/10.1002/jrs.796
Autor:
Régis Calvayrac, Francine Bruston, Marie-Hélène Baron, Bruno Drahi, Jacques Vergne, Marie-Christine Maurel, Lydie Grajcar
Publikováno v:
Biochemical and Biophysical Research Communications. 263:672-677
In solutions of CuCl2 and adenine copper can be bound to adenine. Two Cu(adenine)(2) complexes [Cu(C(5)H(5)N(5))(2)]2+/Cu(C(5)H(4)N(5))(2)] are in equilibrium with free adenine. Copper-adenine complexes present a catalytic activity (e.g., H(2)O(2) di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ed364f4da8407087e9a7c904bd310bb
https://doi.org/10.1006/bbrc.1999.1416
https://doi.org/10.1006/bbrc.1999.1416
Publikováno v:
Chemical Physics. 228:279-291
A spectroscopic study of N-acetylcysteine (RSH) and N-acetylcystine (RSSR) has been performed using infrared absorption and Raman scattering in order to pinpoint the sites of complexation of these two species with H 2 O 2 . Molecules of RSH and RSSR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f594625bf0a73d9a0bf4a289899ccb1
https://doi.org/10.1016/s0301-0104(97)00337-6
https://doi.org/10.1016/s0301-0104(97)00337-6
Autor:
Mariel-Hélène Baron, Valérie Huteau, Richard Mandel, Chahrazade El Amri, Serge Fermandjian, Mahmoud Ghomi, Sophie Lecomte, Lydie Grajcar
Publikováno v:
Biopolymers / Biopolymers (Biospectroscopy); Biopolymers (Pept Sci ); Biopolymers (Peptide Sci ); Biopolymers (Pept Sci); Biopolymers
Biopolymers / Biopolymers (Biospectroscopy); Biopolymers (Pept Sci ); Biopolymers (Peptide Sci ); Biopolymers (Pept Sci); Biopolymers, 2006, 82 (1), pp.6-28. ⟨10.1002/bip.20455⟩
Biopolymers / Biopolymers (Biospectroscopy); Biopolymers (Pept Sci ); Biopolymers (Peptide Sci ); Biopolymers (Pept Sci); Biopolymers, 2006, 82 (1), pp.6-28. ⟨10.1002/bip.20455⟩
International audience; We rank the reactivity of the adenyl residues (A) of model DNA and RNA molecules with electropositive subnano size [Ag]n+ sites as a function of nucleic acid primary sequences and secondary structures and in the presence of bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17130c861b1fc0d817d51b454c748ce2
https://hal.archives-ouvertes.fr/hal-00284717
https://hal.archives-ouvertes.fr/hal-00284717
Autor:
Marie-Hélène Baron, Francine Bruston, Régis Calvayrac, Emile Petit, Evelyne Duval, Lydie Grajcar
Publikováno v:
Biochemical and biophysical research communications. 274(3)
We are attempting to supply a new insight on interaction between Na(+)/K(+)-ATPase and H(2)O(2). We demonstrate that in vitro the Na(+)/K(+)-ATPase, a non heme-protein, is able to disproportionate H(2)O(2) catalatically into dioxygen and water, as we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c96e35fe111d96e94149cca7b79669d8
https://pubmed.ncbi.nlm.nih.gov/10924349
https://pubmed.ncbi.nlm.nih.gov/10924349
Publikováno v:
Biospectroscopy. 5(6)
A spectroscopic study of glutathione (GSH) and glutathione disulfide (GSSG) has been performed using Fourier-transformed infrared absorption and Raman scattering in order to pinpoint the sites of complexation of these two species with water and parti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13f110084699a386020d93a80ca3d1a1
https://pubmed.ncbi.nlm.nih.gov/10604285
https://pubmed.ncbi.nlm.nih.gov/10604285
Autor:
Jozef Ulicny, Nicolas Leulliot, Lydie Grajcar, Marie-Hélène Baron, Hervé Jobic, Mahmoud Ghomi
Publikováno v:
AIP Conference Proceedings.
Geometry optimization as well as harmonic force field calculations at HF and DFT levels of theory have been performed in order to elucidate the ground state properties of anthrone and emodin, two polycyclic conjugated molecules considered as hyperici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fdafcb64c3e34ba1085b4dbe7b27e57
https://doi.org/10.1063/1.59465
https://doi.org/10.1063/1.59465
Publikováno v:
Molecular microbiology. 9(5)
Summary A weak Ca2+-binding site (Ka= 0.8× 103 M−1, at pH7) was identified in the mature part of levansucrase. An amino acid substitution (Thr-236 lle) in this site alters simultaneously the affinity for calcium, the folding transition and the eff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6baa0373d0fd1a8a72734c2b83a0ed6b
https://pubmed.ncbi.nlm.nih.gov/7934915
https://pubmed.ncbi.nlm.nih.gov/7934915
Publikováno v:
Theoretica Chimica Acta. 71:299-304
To understand connections between electronic transitions of dyes having related conjugated systems, topological arguments from graph theory are often helpful. Using the Chebyshev expansion of the characteristic polynomials of cyanines, it is shown th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6182fbf51b59fdffbd3f422549445f8
https://doi.org/10.1007/bf00529101
https://doi.org/10.1007/bf00529101