Výsledky vyhledávání

Release of free nucleobases from oligomers by copper(II)–peroxide adduct

Autor: Satoshi Nishino, Tadashi Tokii, Mami Kunita, Yuzo Nishida, Teruyuki Kobayashi, Hisahiko Einaga, Hideki Masuda, Hideaki Matsushima

Publikováno v: Polyhedron. 19:2639-2648

The release of nucleobases from oligonucleotides (12-mer, d(5′-CGCTTTAAAGCG)2, 8-mer, d(5′-AAACGTTT)2, 7-mer, d(TCGCGCG)2, and 6-mer, d(CGCGCG)2) by copper(II) complex and hydrogen peroxide systems was investigated in terms of HPLC. The [Cu(bdpg)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba621f95880f545cb5960448e751c4f5
https://doi.org/10.1016/s0277-5387(00)00576-3

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Cleavage of the C–N bond of a peptide group by a copper(II)-peroxide adduct with an η1-coordination mode

Autor: Satoshi Nishino, Hideaki Matsushima, Mami Kunita, Yoshiyuki Kani, Yuzo Nishida, Tadashi Tokii, Shigeru Ohba

Publikováno v: Inorganic Chemistry Communications. 3:145-148

We have obtained clear evidence that a copper(II)-peroxide adduct with an η1-coordination mode can cleave the C–N bond of a peptide group and hydroxylate the alkyl group nearby; this may provide helpful information for elucidation of the reaction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::601f20a1734e972b76cc32c3ed6eb683
https://doi.org/10.1016/s1387-7003(00)00023-x

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Interaction between the Peroxide Adduct of Binuclear Iron(III) Complex with (HPTP) Anion and the Sugar Moiety of Nucleosides

Autor: Teruyuki Kobayashi, Hideaki Matsushima, Satoshi Nishino, Yuzo Nishida, Mami Kunita, Tadashi Tokii

Publikováno v: Zeitschrift für Naturforschung B. 54:1272-1276

We have in this study obtained the experimental evidence to suggest that the peroxide adduct of binuclear iron(III) complex with H(HPTP) directly reacts with the sugar moiety of the DNA chain, to cleave it; H(HPTP) denotes N,N,N′,N′-tetrakis(2-py

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a34f70db56e856f0987af200a12ae8ad
https://doi.org/10.1515/znb-1999-1009

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DNA degradation by the copper(II) complex with tripodal-ligands containing peptide group

Autor: Mami Kunita, Takashi Okuno, Toshio Suzuki, Shigeru Ohba, Yuzo Nishida, Teruyuki Kobayashi

Publikováno v: Polyhedron. 17:1553-1559

Copper-based transition metal complexes which perform single-strand scission of DNA in a site-specific manner have been designed. The complexes Cu(dpg)+ and Cu(dpgt)Cl+ (H(dpg) and (dpgt) represent bis(2-pyridylmethyl) derivatives of glycylglycine an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ab29e482fc994844920111286a9230a
https://doi.org/10.1016/s0277-5387(97)00368-9

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DNA promotes the activation of oxygen molecules by binuclear cobalt(II) compounds

Autor: Li Li Guo, Tadashi Tokii, Satoshi Nishino, Yuzo Nishida, Mami Kunita, Hideaki Matsushima

Publikováno v: Inorganic Chemistry Communications. 2:609-611

We have observed that binuclear cobalt(II) compounds with H(HPTP), Co2(HPTP)(CH3COO)(ClO4)2 and Co2(HPTP)Cl(ClO4)2, react with oxygen molecules when DNA is present in the solution, cleaving the DNA (H(HPTP) denotes N,N,N′,N′-tetrakis(2-pyridylmet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f41ee798c025eb89929c29ec1a02f32
https://doi.org/10.1016/s1387-7003(99)00165-3

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Chloro[N',N'-diethyl-N,N-bis(2-pyridylmethyl)ethylenediamine-kappa(4)N]copper(II) perchlorate

Autor: Yoshiyuki Kani, Mami Kunita, Shigeru Ohba, Yuzo Nishida

Publikováno v: Acta crystallographica. Section C, Crystal structure communications. 56(Pt 5)

The title mononuclear copper(II) complex, [CuCl(C(18)H(26)N(4))]ClO(4), shows a square-pyramidal coordination with the diethylamino N atom at the apical position. Large anisotropies in the displacement parameters of the non-H atoms of the ligand seem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::731187c7f1c76a1d4e61706b42232cdf
https://pubmed.ncbi.nlm.nih.gov/15263148

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[1,6-Bis(2-pyridylmethyl)-2,5-diazahexane-kappa(4)N]chlorocopper(II) perchlorate

Autor: Yuzo Nishida, Shigeru Ohba, Yoshiyuki Kani, Mami Kunita

Publikováno v: Acta crystallographica. Section C, Crystal structure communications. 56(Pt 5)

The title mononuclear copper(II) compound, [CuCl(C(16)H(22)N(4))]ClO(4), shows a slightly tetrahedrally distorted square-pyramidal coordination with the chlorine ligand at the apical position. The directions of the two N-Me bond axes are syn to the C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d29b2bf587502669e62803c298800730
https://pubmed.ncbi.nlm.nih.gov/15263147

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Mechanism of DNA cleavage due to green cobalt(III)-bleomycin hydroperoxide irradiated by visible light

Autor: Yuzo Nishida, Satoshi Nishino, Mami Kunita

Publikováno v: Inorganic Chemistry Communications. 2:156-157

The origin of the DNA cleavage reaction due to green cobalt(III)-bleomycin hydroperoxide irradiated by light (366 nm) was developed; the importance of the activation of the peroxide ion by transferring an electron from the occupied orbital to the σ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::91b6b669ef102ed2d7a4bfb4e315e437
https://doi.org/10.1016/s1387-7003(99)00036-2

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