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Related Experiment Video

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Real-time In Vivo Recording of Arabidopsis Calcium Signals During Insect Feeding Using a Fluorescent Biosensor

Real-time In Vivo Recording of Arabidopsis Calcium Signals During Insect Feeding Using a Fluorescent Biosensor

Published on: August 15, 2017

New fluorescent reagents specific for Ca(2+)-binding proteins.

Danya Ben-Hail¹, Daniela Lemelson, Adrian Israelson

¹Department of Life Sciences and the NIBN, Ben-Gurion University, Beer-Sheva 84105, Israel.

Biochemical and Biophysical Research Communications

|August 29, 2012

Summary

Researchers developed novel fluorescent ruthenium reagents (FITC-Ru, EITC-Ru) that specifically inhibit calcium-dependent activities. These new tools aid in understanding calcium

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Area of Science:

Biochemistry
Cell Biology
Chemical Biology

Background:

Calcium ions (Ca2+) are crucial signaling molecules regulating vital cellular processes, including cell life and death.
Understanding Ca2+ interactions with proteins is essential for deciphering cellular regulation.

Purpose of the Study:

To synthesize and characterize novel fluorescent ruthenium-based reagents as analogs for Ca2+.
To evaluate the specificity and inhibitory effects of these new reagents on Ca2+-dependent activities.

Main Methods:

Synthesis and purification of fluorescent ruthenium-based reagents (FITC-Ru, EITC-Ru).
Characterization of the synthesized reagents.
Assessment of reagent interaction with and inhibition of Ca2+-dependent and Ca2+-independent reactions.

Main Results:

Successfully synthesized and characterized FITC-Ru and EITC-Ru, novel fluorescent divalent cation analogs.
These reagents specifically interact with and inhibit Ca2+-dependent activities.
The reagents do not affect Ca2+-independent reactions, demonstrating high specificity.

Conclusions:

FITC-Ru and EITC-Ru are the first characterized fluorescent divalent cation analogs that inhibit Ca2+-binding protein activity.
These reagents represent valuable tools for studying Ca2+-binding proteins and the role of Ca2+ in biological regulation.