Výsledky vyhledávání - "NENAD M. KOSTIC"

Akademický článek

Steric effects on the rate of hydrolysis by palladium(II) complexes of the C-terminal amide bond in a series of methionine-containing dipeptides AcMet-Aa

Autor: NENAD M. KOSTIC, T. WADE JOHNSON

Publikováno v: Journal of the Serbian Chemical Society, Vol 69, Iss 11, Pp 887-899 (2004)

A series of N-acetylated, methionine-containing dipeptides designated AcMet-Aa containing various C-terminal amino acids designated Aa are hydrolyzed in aqueous solution at 50 ºC and 0.95 < pD < 1.10 in the presence of three cis-[Pd(L)(H2O)2]2+ comp

Externí odkaz: https://doaj.org/article/d77ab6c6c183475fb1029051767c6e65

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Akademický článek

Effects of pH on kinetics of the structural rearrangement that gates the electron-transfer reaction between zinc cytochrome c and plastocyanin. Analysis of protonation states in a diprotein complex

Autor: NENAD M. KOSTIC, MILAN M. CRNOGORAC

Publikováno v: Journal of the Serbian Chemical Society, Vol 68, Iss 4-5, Pp 327-337 (2003)

Electron transfer from zinc cytochrome c to copper(II)plastocyanin in the electrostatically-stabilized complex [Crnogorac MM, Shen C, Young S, Hansson O, Kosti} NM (1996) Biochemistry 35, 1646574]. We study this rearrangement in four complexes Zncyt/

Externí odkaz: https://doaj.org/article/d1d1f2e819ed4adf88757d036634f304

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New Regioselectivity in the Cleavage of Histidine-Containing Peptides by Palladium(II) Complexes Studied by Kinetic Experiments and Molecular Dynamics Simulations

Autor: Nenad M. Kostic, and G. Matthias Ullmann, Tatjana N. Parac

Publikováno v: Journal of the American Chemical Society. 121:3127-3135

Palladium(II) complexes promote hydrolytic cleavage of amide bonds in N-acetylhistidylglycine (AcHis−Gly), N-acetylhistidine (AcHis), and their derivatives methylated at the N-1 or N-3 atom of imidazole. Methylation controls coordination of imidazo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::993dc5698f90a3b8e9857ebdbc9b76fe
https://doi.org/10.1021/ja982369i

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Interplay between the palladium(II) ion, unidentate ligands and hydroxyl groups from a bidentate ligand in a new complex that catalyses hydration and alcoholysis of nitrile and urea ‡

Autor: Ilia A. Guzei, Nenad M. Kostic, Natalia V. Kaminskaia

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :3879-3886

Palladium(II) complexes containing the bidentate ligand 3,6-dithiaoctane-1,8-diol (dtod) and chloride anions (1) or solvent molecules (2) as two unidentate ligands were synthesized and characterized by 1H and 13C NMR spectroscopy. The complex 1, whic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::036d101f1f84e15bf8bafea1e04243b7
https://doi.org/10.1039/a805139i

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Dependence of hydrolytic cleavage of histidine-containing peptides by palladium(II) aqua complexes on the co-ordination modes of the peptides

Autor: Snežana U. Milinković, Miloš I. Djuran, Nenad M. Kostic, Tatjana N. Parac

Publikováno v: Journal of the Chemical Society, Dalton Transactions. :2771-2776

Reactions of palladium(II) complexes cis-[PdCl 2 (en)] and cis-[PdCl 2 (L-HMet-S,N) ], in which en is ethane-1,2-diamine and methionine is an S,N-bidentate ligand, and their aqua analogs with dipeptides glycyl-L-histidine (Gly-His), L-histidylglycine

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1b75ee6a222919f668e2e3f8c4b1fe3
https://doi.org/10.1039/a701491k

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Computational Simulation and Analysis of Dynamic Association between Plastocyanin and Cytochromef. Consequences for the Electron-Transfer Reaction

Autor: Nenad M. Kostic, † and Ernst-Walter Knapp, G. Matthias Ullmann

Publikováno v: Journal of the American Chemical Society. 119:42-52

This work is a theoretical analysis in four stages of association between the blue copper protein plastocyanin and the heme protein cytochrome f, which are physiological partners in the photosynthetic electron-transfer chain. In the first stage, 32 0

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86e67596cdb633b9a7286ec3bdac3a46
https://doi.org/10.1021/ja962237u

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Site-Specific Hydrolytic Cleavage of Cytochrome c and of Its Heme Undecapeptide, Promoted by Coordination Complexes of Palladium(II)

Autor: Ling Qin, Tatjana N. Parac, Nenad M. Kostic, Longgen Zhu

Publikováno v: Journal of the American Chemical Society. 116:5218-5224

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::542b35ff6678223cb9fd3731210ab2ea
https://doi.org/10.1021/ja00091a028

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Photoinduced Electron-Transfer Reactions of Plastocyanin with the Triplet State of Zinc Myoglobin and with the Zinc Myoglobin Cation Radical. Protein-Protein Orientation in the Absence of Strong Electrostatic Interactions

Autor: Jun Cheng, Jian S. Zhou, Nenad M. Kostic

Publikováno v: Inorganic Chemistry. 33:1600-1606

Various redox properties and electron-transfer reactions of myoglobin have been studied, but very few of these studies have dealt with reactions between myoglobin and other redox proteins. We report kinetics of two such photoinduced bimolecular react

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9826e4836165c43f787d6f859afbcc25
https://doi.org/10.1021/ic00086a008

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Gating of photoinduced electron transfer from zinc cytochrome c and tin cytochrome c to plastocyanin. Effects of solution viscosity on rearrangement of the metalloprotein complex

Autor: Jian S. Zhou, Nenad M. Kostic

Publikováno v: Journal of the American Chemical Society. 115:10796-10804

Oxidative quenching by pc(II) of the triplet excited states 3 Zn(cyt) and 3 Sn(cyt) is studied by laser flash photolysis. The quenching is biphasic at low ionic strength. The faster component corresponds to the unimolecular electron-transfer reaction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4bb6702e0ff48ce348a2df0b2f36d1a1
https://doi.org/10.1021/ja00076a042

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Selective hydrolysis of peptides, promoted by palladium aqua complexes: kinetic effects of the leaving group, pH, and inhibitors

Autor: Nenad M. Kostic, Longgen Zhu

Publikováno v: Journal of the American Chemical Society. 115:4566-4570

This study is a step toward a method for selective internal cleavage of peptides and proteins by coordination complexes as artifiicial metallopeptidases. Palladium(II) aqua complexes attached to the sulfur atom of methionine in peptides promote, unde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ff367405ee288c611e6b61f376db809
https://doi.org/10.1021/ja00064a019

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