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Difference between revisions of "Tetraphenylphosphonium"

From Bioblast
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{{MitoPedia topics|type=Chemicals
{{MitoPedia topics|type=Chemicals
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* [[O2k-TPP%2B_ISE-Module|O2k-TPP+ ISE-Module]]
:::: * [[O2k-TPP%2B_ISE-Module|O2k-TPP+ ISE-Module]]


'''First TPP publication with HRR''' [[Brown 2011 Am J Physiol Regul Integr Comp Physiol]]
:::: '''First TPP publication with HRR''' [[Brown 2011 Am J Physiol Regul Integr Comp Physiol]]


== TPP<sup>+</sup> inhibitory effect ==
== TPP<sup>+</sup> inhibitory effect ==
{{Technical support integrated}}
{{Technical support integrated}}


A major first task in establishing a system for measurement of [[Mitochondrial membrane potential]] using probe molecules is the evaluation of inhibitory concentrations of the probe molecule on the activity of respiration. This important 'side effect' of TPP+ and TPMP+ (and various dyes) is frequently ignored. Accurate knowledge of a threshold concentration is required to evaluate the necessary limit of detection of TPP+, and for restriction of experimental TPP+ concentrations below the inhibitory range [[MiPNet14.05]].
:::: For measurement of [[mitochondrial membrane potential]], the inhibitory concentration of the probe molecule should be evaluated on the activity of respiration [[MiPNet14.05]]. This side effect of TPP+ and TPMP+ (and various dyes) is frequently ignored.

Revision as of 07:02, 6 May 2016


high-resolution terminology - matching measurements at high-resolution


Tetraphenylphosphonium

Description

Tetraphenylphosphonium (TPP+). A molecular probe in conjunction with an ion selective electrode (ISE) for measuring the mitochondrial membrane potential.

See also: External unspecific binding of TPP+ and Internal unspecific binding of TPP+.

Abbreviation: TPP+

Reference: MiPNet14.05




* O2k-TPP+ ISE-Module
First TPP publication with HRR Brown 2011 Am J Physiol Regul Integr Comp Physiol

TPP+ inhibitory effect


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MitoPedia O2k and high-resolution respirometry: O2k-Open Support 



For measurement of mitochondrial membrane potential, the inhibitory concentration of the probe molecule should be evaluated on the activity of respiration MiPNet14.05. This side effect of TPP+ and TPMP+ (and various dyes) is frequently ignored.