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Luminescence Resonance Energy Transfer to Study Conformational Changes in Membrane Proteins Expressed in Mammalian Cells

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Published on: September 16, 2014

An ATP-selective, lanthanide complex luminescent probe.

Xiao Liu¹, Jun Xu, Yinyun Lv

¹State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China.

Dalton Transactions (Cambridge, England : 2003)

|May 22, 2013

Summary

This summary is machine-generated.

A novel europium-based luminescent probe can differentiate adenosine-5'-triphosphate (ATP) from its related compounds. This probe offers potential for monitoring biological ATP levels due to its long lifetime and ability to eliminate background fluorescence.

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Area of Science:

Analytical Chemistry
Biochemistry
Materials Science

Background:

Adenosine triphosphate (ATP) is crucial for biological energy transfer.
Distinguishing ATP from ADP and AMP is vital for understanding cellular processes.
Existing detection methods may suffer from background interference.

Purpose of the Study:

To develop a luminescent probe for selective ATP detection.
To differentiate ATP from adenosine diphosphate (ADP) and adenosine monophosphate (AMP).
To enable ATP monitoring in biological systems.

Main Methods:

Synthesis of a europium complex-based luminescent probe.
Testing probe performance in pure water at pH 6.8.
Evaluating the probe's luminescence lifetime and selectivity.

Main Results:

The europium complex probe effectively distinguishes ATP from ADP and AMP.
The probe exhibits a long luminescence lifetime in the millisecond range.
Background fluorescence from other molecules is effectively eliminated.

Conclusions:

A selective luminescent probe for ATP detection has been successfully developed.
The probe's long lifetime and background suppression capabilities are advantageous for biological applications.
This probe shows promise for real-time monitoring of ATP levels in biological systems.