Výsledky vyhledávání - "Shin-ichirou Kawabata"

In-Depth Structural Characterization of N-Linked Glycopeptides Using Complete Derivatization for Carboxyl Groups Followed by Positive- and Negative-Ion Tandem Mass Spectrometry

Autor: Shin-ichirou Kawabata, Takashi Nishikaze, Koichi Tanaka

Publikováno v: Analytical Chemistry. 86:5360-5369

Tandem mass spectrometry (MS/MS or MS(n)) is a powerful tool for characterizing N-linked glycopeptide structures. However, it is still difficult to obtain detailed structural information on the glycan moiety directly from glycopeptide ions. Here, we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0addf90431edc6701adbb69d02414c0e
https://doi.org/10.1021/ac500340t

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Alkylated Trihydroxyacetophenone as a MALDI Matrix for Hydrophobic Peptides

Autor: Shin-ichirou Kawabata, Koichi Tanaka, Kenichi Taniguchi, Shunsuke Izumi, Keiko Furuichi, Chihiro Nakajima, Yuko Fukuyama

Publikováno v: Analytical Chemistry. 85:9444-9448

Hydrophobic peptides are difficult to detect in matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS), because of the hydrophilic properties of conventional matrices and the low affinity for hydrophobic peptides. Recently, we repor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51eb3fdc424f13b9392f95d15ea0e887
https://doi.org/10.1021/ac4018378

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Potential of radical scavenging reagents as a matrix additive in the direct detection of S-nitrosylated peptides with UV-MALDI MS

Autor: Ritsuko Tanimura, Makoto Watanabe, Koichi Tanaka, Yuko Fukuyama, Shunsuke Izumi, Shinichi Iwamoto, Rie Yamamoto, Shin-ichirou Kawabata, Taka-Aki Sato

Publikováno v: International Journal of Mass Spectrometry. 333:67-71

Nitric oxide (NO) exerts a ubiquitous influence on cellular signaling, largely through S-nitrosylation/denitrosylation of cysteines in proteins. The ability to analyze S-nitrosylation directly by mass spectrometry (MS) would be highly useful in under

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf9911bea42129e82d3db0ee013bda43
https://doi.org/10.1016/j.ijms.2012.08.028

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An optimized matrix-assisted laser desorption/ionization sample preparation using a liquid matrix, 3-aminoquinoline/α -cyano-4-hydroxycinnamic acid, for phosphopeptides

Autor: Koichi Tanaka, Shin-ichirou Kawabata, Kohei Takeyama, Yuko Fukuyama, Shinichi Iwamoto

Publikováno v: Rapid Communications in Mass Spectrometry. 26:2454-2460

RATIONALE A liquid matrix, 3-aminoquinoline (3-AQ)/α-cyano-4-hydroxycinnamic acid (CHCA), introduced by Kolli et al. in 1996 for matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS), has been reported for peptides and proteins, o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92de1707e20417be3ee3ae4713038640
https://doi.org/10.1002/rcm.6363

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Sensitive Analyses of Neutral N-Glycans using Anion-Doped Liquid Matrix G3CA by Negative-Ion Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry

Autor: Koichi Tanaka, Takashi Nishikaze, Shin-ichirou Kawabata, Yuko Fukuyama

Publikováno v: Analytical Chemistry. 84:6097-6103

Negative-ion fragmentation of N-glycans has been proven to be more informative than that of positive-ion. In particular, it defines structural features such as the specific composition of the two antennae and the location of fucose. However, negative

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc3aff23bf6c3856bf94c25787b5081f
https://doi.org/10.1021/ac3009803

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Alkylated Dihydroxybenzoic Acid as a MALDI Matrix Additive for Hydrophobic Peptide Analysis

Autor: Ritsuko Tanimura, Yuko Fukuyama, Tanaka Koichi, Shunsuke Izumi, Shinichi Iwamoto, Kazuki Maeda, Shin-ichirou Kawabata, Makoto Watanabe

Publikováno v: Analytical Chemistry. 84:4237-4243

Hydrophobic peptides are generally difficult to detect using matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) because the majority of MALDI matrixes are hydrophilic and therefore have a low affinity for hydrophobic peptides. H

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::297e63e5e98bfe23dd7150aefef0690d
https://doi.org/10.1021/ac300540r

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Direct Identification of Various Copper Phthalocyanine Pigments in Automotive Paints and Paint Smears by Laser Desorption Ionization Mass Spectrometry

Autor: B S Seita Nakai, Hiroyuki Nakazumi, Sadao Honda, Tadashi Mukai, Shin-ichirou Kawabata, B S Masaru Kusatani

Publikováno v: Journal of Forensic Sciences. 53:107-115

Direct identification of copper phthalocyanine (CuPc) and chlorinated CuPcs in paints for discrimination between blue automobile paints by means of laser desorption mass spectrometry (LDMS) in the absence of a matrix is reported. The models consisted

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6a6d1531d74daee97932c78e145753c
https://doi.org/10.1111/j.1556-4029.2007.00626.x

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