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对8-苯胺基萘-1-磺酸盐与亚线粒体颗粒相互作用时荧光变化的动力学分析。

A kinetic analysis of the changes in fluorescence on the interaction of 8-anilinonaphthalene-1-sulphonate with submitochondrial particles.

作者信息

Gains N, Dawson A P

出版信息

Biochem J. 1976 Aug 15;158(2):295-305. doi: 10.1042/bj1580295.

DOI:10.1042/bj1580295
PMID:985430
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1163971/
Abstract

A comparison of the fluorescence change on the addition of 8-anilinonaphthalene-1-sulphonate to succinate-energized submitochondrial particles with that on the addition of succinate to submitochondrial particles incubated with 8-anilinonaphthalene-1-sulphonate shows that these changes in fluorescence may be explained solely in terms of 8-anilinonaphthalene-1-sulphonate binding. This comparison does not support the proposal of an 8-anilinonaphthalene-1-sulphonate-monitored change in the conformation of submitochondrial-particle membranes [Brocklehurst, Freedman, Hancock & Radda (1970) Biochem. J.116, 721-731]. The biphasic nature of the decrease in fluorescence, which was found to follow the addition of uncoupler to submitochondrial particles incubated with ATP or succinate, or of antimycin A to submitochondrial particles incubated with succinate, does not support the existence of 'aplectic' and 'symplectic' states of the mitochondrial membrane [Barrett-Bee & Radda (1972) Biochim, Biophys. Acta 267, 211-215].

摘要

将8-苯胺基萘-1-磺酸盐添加到琥珀酸激活的亚线粒体颗粒中时荧光的变化，与将琥珀酸添加到用8-苯胺基萘-1-磺酸盐孵育的亚线粒体颗粒中时荧光的变化进行比较，结果表明，这些荧光变化仅可用8-苯胺基萘-1-磺酸盐的结合来解释。这种比较不支持关于8-苯胺基萘-1-磺酸盐监测亚线粒体颗粒膜构象变化的提议[布罗克赫斯特、弗里德曼、汉考克和拉达（1970年）《生物化学杂志》116, 721 - 731]。在用ATP或琥珀酸孵育的亚线粒体颗粒中加入解偶联剂，或在用琥珀酸孵育的亚线粒体颗粒中加入抗霉素A后，荧光下降呈现双相性质，这并不支持线粒体膜存在“中风样”和“共济失调样”状态的观点[巴雷特 - 比和拉达（1972年）《生物化学与生物物理学报》267, 211 - 215]。

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An analysis of the binding of 8-anilino-1-naphthalene-sulphonate to sub-mitochondrial particles.
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