ON THE REACTION OF SUPEROXIDE WITH DMPO/.OOH

被引：66

作者：

BUETTNER, GR

机构：

[1] ESR Center EMRB 58, The University of Iowa, Iowa City

来源：

FREE RADICAL RESEARCH COMMUNICATIONS | 1990年 / 10卷 / 1-2期

关键词：

5.5-dimethylpyrroline-N-oxide; Free radical; Spin trapping; Superoxide;

D O I：

10.3109/10715769009145928

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A kinetic model has been used to estimate the rate constant for the reaction of superoxide (O2/OOH) with the superoxide spin adduct of 5.5-dimethylpyrroline-N-oxide. DMPO/OOH. This rate constant is estimated to be 4.9 (± 2.2) × 106 M-1 s-1, pH 7.4 and 25°C. © 1990 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.

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页码：11 / 15

页数：5

相关论文

共 11 条

[1] REACTIVITY OF HO2/O-2 RADICALS IN AQUEOUS-SOLUTION [J].

BIELSKI, BHJ ;

CABELLI, DE ;

ARUDI, RL ;

ROSS, AB .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1985, 14 (04) :1041-1100

[2] CONSIDERATIONS IN SPIN TRAPPING OF SUPEROXIDE AND HYDROXYL RADICAL IN AQUEOUS SYSTEMS USING 5,5-DIMETHYL-1-PYRROLINE-1-OXIDE [J].

BUETTNER, GR ;

OBERLEY, LW .

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, 1978, 83 (01) :69-74

[3] IN THE ABSENCE OF CATALYTIC METALS ASCORBATE DOES NOT AUTOXIDIZE AT PH-7 - ASCORBATE AS A TEST FOR CATALYTIC METALS [J].

BUETTNER, GR .

JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS, 1988, 16 (01) :27-40

[4]

Eaton S.S., 1980, B MAGN RESON, V1, P130

[5] SPIN TRAPPING - KINETICS OF THE REACTION OF SUPEROXIDE AND HYDROXYL RADICALS WITH NITRONES [J].

FINKELSTEIN, E ;

ROSEN, GM ;

RAUCKMAN, EJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1980, 102 (15) :4994-4999

[6]

Fridovich I, 1985, HDB METHODS OXYGEN R, P121

[7] SIMULATION OF ISOTROPIC ELECTRON-SPIN RESONANCE-SPECTRA - A TRANSPORTABLE BASIC PROGRAM [J].

OEHLER, UM ;

JANZEN, EG .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1982, 60 (12) :1542-1548

[8]

SAMUNI A, 1988, J BIOL CHEM, V263, P17921

[9]

SAMUNI A, 1988, J BIOL CHEM, V263, P13797

[10] SUPEROXIDE REACTION WITH NITROXIDE SPIN-ADDUCTS [J].

SAMUNI, A ;

KRISHNA, CM ;

RIESZ, P ;

FINKELSTEIN, E ;

RUSSO, A .

FREE RADICAL BIOLOGY AND MEDICINE, 1989, 6 (02) :141-148