Location and magnetic relaxation properties of the stable tyrosine radical in photosystem II.
Location and magnetic relaxation properties of the stable tyrosine radical in photosystem II.
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光系统II中稳定酪氨酸自由基的位置和磁弛豫特性。
DOI:
10.1021/bi00429a028
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发表时间:
1989
期刊:
影响因子:
2.9
通讯作者:
Brudvig,GW
中科院分区:
文献类型:
--
作者:
Innes,JB;Brudvig,GW
Materials and MethodsSpinach thylakoids were prepared from dark-adapted market spinach by the method of Yocum et al.(1981), ending in a pH 6.0, 30%(v/v) ethylene glycol, 20 mM MES, 15 mM NaCl, 1 mM EDTA buffer with 1 mg/mL bovine serum albumin. PSII membranes were obtained by the procedure of Berthold et al.(1981) with the modifications described by Beck et al.(1985). 02 evolution was measured with a Clark-type 02 electrode, and rates between 450 and 600^ mol of 02/(mg of chl-h) were obtained with 250/uM added 2, 5-dichloro-p-benzoquinone as an electron acceptor. All spinach samples were pelleted and resuspended in pH 6.0, 30% ethylene glycol, 20 mM MES, 15 mM NaCl, 0.05% Triton TX-100 buffer for use in the EPR experiments. All steps were per-formed in dim green light.Tris-washed PSII membranes were prepared by incubation of PSII membranes in pH 8.0, 0.8 M Tris-HCl buffer at 0.5 mg of chl/mL for 30 min on ice, in room light. Membranes were pelleted, then resuspended again with the Tris buffer, and then repeatedly pelleted and resuspended in pH 6.0, 30% ethylene glycol, MES-NaOH, NaCl buffer containing 1
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DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
L. Staehelin;M. Dewit;M. Seibert
通讯作者:
M. Seibert
DOI:
--
发表时间:
1978
期刊:
影响因子:
--
作者:
J. Hyde;K. Rao
通讯作者:
K. Rao
DOI:
--
发表时间:
1953
期刊:
影响因子:
--
作者:
C. Kittel;E. Abrahams
通讯作者:
E. Abrahams
DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
S. Styring;A. Rutherford
通讯作者:
A. Rutherford
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
R. Prince
通讯作者:
R. Prince