Výsledky vyhledávání - "Akira Hanaki"

Transport of Cu(II) from an albumin mimic peptide, GlyGlyHisGly, to histidine and penicillamine

Autor: Akira Hanaki, Akira Odani

Publikováno v: Journal of Inorganic Biochemistry. 101:1428-1437

医薬保健研究域薬学系
Cu in blood has been believed to transport into cell via albumin and some amino acids. To shed light on the Cu transport process we studied the reaction of the Cu(II)-peptide with the amino acid by absorption and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ae5776e8cc9f53588ad22385da833bd
https://doi.org/10.1016/j.jinorgbio.2007.05.014

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Stability of the Cu(II) Complexes of Tripeptides, Cu(H−2L), in Dynamic Aspects; L = Tripeptides Composed of Various Combinations of α-, β-, and γ-Amino-Acid Residues. Stopped-Flow Kinetic Studies on the Reaction of Cu(H−2L) with Cysteine

Autor: Akira Hanaki, Jun-ichi Ueda, Nobuo Ikota

Publikováno v: Bulletin of the Chemical Society of Japan. 77:1639-1645

The stability of the fused chelate-ring structures of Cu(H - 2 L) concerning dynamic aspects was evaluated based on the rate constant (k 1 + ) for the formation of ternary complexes, Cu(H - 1 L)(Cys - ), from Cu(H - 2 L) and cysteine (Cys), where L d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::93b54da80116f37764973fc5b28e4f22
https://doi.org/10.1246/bcsj.77.1639

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Comparative Studies on the Stability of a Chelate-Ring Unit in Dynamic Aspects. Chelate-Rings of the Cu(II) Complexes Composed of [N-(Glycyl)], [N-(β-Alanyl)], and [N-(2-Aminoethyl)] Moieties

Autor: Akira Hanaki, Akira Odani, Yasuhiro Funahashi, Toshihiko Ozawa

Publikováno v: Bulletin of the Chemical Society of Japan. 77:699-707

The kinetic stability of a chelate-ring unit in Cu(H - 1 GlyGly), Cu(H - 1 β-AlaGly), and Cu(EDMA) complexes has been inspected by stopped-flow spectroscopy. Those three Cu(II) complexes reacted with cysteine (CysH) or penicillamine (PesH) to form p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::635b2a97db8cd1986c910768583cb6ba
https://doi.org/10.1246/bcsj.77.699

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Transport of the Cu(II) Bound with Histidine-Containing Tripeptides to Cysteine. Coordination Mode and Exchangeability of Cu(II) in the Complexes

Autor: Akira Odani, Akira Hanaki, Nobuo Ikota, Toshihiko Ozawa, Jun-ichi Ueda

Publikováno v: Bulletin of the Chemical Society of Japan. 76:2143-2150

The transport of Cu(II) complexed with histidine-containing tripeptides (Cu(H−iL), L = HisGlyGly (i = 2), GlyHisGly (i = 1), and GlyGlyHis (i = 2)) to cysteine was examined by a stopped-flow spectrophotometric method. The S → Cu(II) charge transf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::132666895900487e95e2ae750814812d
https://doi.org/10.1246/bcsj.76.2143

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Stopped-Flow Spectroscopic Studies on the Ligand-Exchange Reaction of Cu–(Glycine-Peptide) Complexes, Cu(H−iL), with Cysteine. Cu(II) Transport and Characterization of the Intermediate Ternary Complexes Cu(H−1L)(Cys−); L = Glycylglycine (i= 1), Triglycine (i= 2), Tetraglycine (i= 2 or 3), and Pentaglycine (i= 2 or 3)

Autor: Manabu Hiraoka, Toshikazu Abe, Akira Hanaki, Akira Odani, Yasuhiro Funahashi

Publikováno v: Bulletin of the Chemical Society of Japan. 76:1747-1755

Cu(II) complexes of glycine-peptides, abbreviated as Cu(H−iL): L = glycylglycine, triglycine, tetraglycine, and pentaglycine (i = 1–3), react with cysteine to form ternary complexes, Cu(H−1L)(Cys−), as first intermediates. The spectral parame

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c58559293bb6da4604dce35f5a6b670c
https://doi.org/10.1246/bcsj.76.1747

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Kinetic Studies on the Autoxidation of Cysteine Catalyzed by Copper Complexes: Catecholamines Stimulate the Autoxidation

Autor: Tomoyuki Kinoshita, Akira Hanaki, Toshihiko Ozawa

Publikováno v: Bulletin of the Chemical Society of Japan. 73(1):73-80

Catecholamines including epinephrine, norepinephrine, dopamine, and dihydroxyphenylalanine accelerated copper-catalyzed oxidation of cysteine under aerobic conditions, while they had no effect under anaerobic conditions. The efficiency of the catecho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc8a462350cf8aa5140b2ba8353f50dd
https://repo.qst.go.jp/records/43078

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Copper(II)–tripeptide complexes in aqueous solution. Effects of the C-terminal chelate ring size on the coordination structure of doubly deprotonated complex species

Autor: Osamu Yamauchi, Takashi Konishi, Takuya Kawashima, Akira Hanaki, Diasuke Mabuchi, Taiji Takano, Akira Odani

Publikováno v: Journal of Inorganic Biochemistry. 77:147-155

Stabilities and coordination modes of the Cu(II) complexes of tripeptides, glycylglycyl–X (GlyGly–X), where X denotes Gly, β-alaninate, γ-aminobutyrate, δ-aminovalerate, e-aminocaproate, and sarcosinate, have been studied by pH-titration and e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7298af5733bade20f73e5de979ce313e
https://doi.org/10.1016/s0162-0134(99)00184-1

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Report about TEST Results of Terrestrial DATA Broadcasting System MPXed on TV Audio Band

Autor: Kouji Sasano, Akira Hanaki

Publikováno v: The Journal of the Institute of Image Information and Television Engineers. 51:410-413

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::380d8fe73ff317dd826d758c2d31ceba
https://doi.org/10.3169/itej.51.410

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Proton Nuclear Magnetic Resonance Studies of the Complexation of Zn(II) with Histidine-Containing Peptides, L-histidyl-L-histidylglycylglycine and L-histidylglycyl-L-histidylglycine

Autor: Terumi Nakajima, Jun-ichi Ueda, Akira Hanaki, Naoko Yoshida

Publikováno v: Chemical and Pharmaceutical Bulletin. 45:1108-1113

The complexation of Zn(II) with L-histidyl-L-histidylglycylglycine (HisHisGlyGly) and L-histidylglycyl-L-histidylglycine (HisGlyHisGly) was studied by proton nuclear magnetic resonance spectroscopy over the pH range from 3 to 11 at room temperature.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2393eace0ecd7dba878dd2da42ffd0c4
https://doi.org/10.1248/cpb.45.1108

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Glycylsarcosyl-L-histidylglycine, a peptide with a 'breakpoint' in complex formation: Hydrolysis of the complex [CuH−1L]

Autor: Yoshikazu Matsushima, Michiko Miyazaki, Jun-ichi Ueda, Akira Hanaki

Publikováno v: Journal of Inorganic Biochemistry. 63:29-39

Coordination of Cu(II) with glycylsarcosyl-L-histidylglycine to form the series of [CuL] and [CuH −1 L] was studied potentiometrically and spectroscopically. [CuL] includes the Cu(N 2 O)O chromophore, in which Cu(II) coordinates with nitrogens from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b87e0dd72f94eaaefc8779968f1fcf03
https://doi.org/10.1016/0162-0134(95)00165-4

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