Calcium Signaling
Calcium Signaling — An intracellular signaling mechanism using calcium ions as second messengers, triggered by numerous peptide receptors and measured by fluorescent indicators.
What Is Calcium Signaling?
Calcium signaling uses changes in intracellular Ca²⁺ concentration as a universal second messenger to control cell functions including secretion, contraction, gene expression, and apoptosis. Many peptide receptors (Gq-coupled) signal through the PLC/IP3/calcium pathway, and calcium flux assays are a primary readout for peptide pharmacology screening.
Calcium Assays for Peptide Screening
- FLIPR: High-throughput fluorescent calcium indicator plate reader for Gq-coupled receptor screening
- Fura-2/Fluo-4: Ratiometric calcium indicators for single-cell imaging
- Aequorin: Bioluminescent calcium reporter for ultra-sensitive detection
Frequently Asked Questions
What is Calcium Signaling?
An intracellular signaling mechanism using calcium ions as second messengers, triggered by numerous peptide receptors and measured by fluorescent indicators.
Why is Calcium Signaling important in peptide research?
Calcium Signaling is a fundamental concept in biology as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.
Authority Sources
- Calcium Signaling on Wikipedia
- Search Calcium Signaling on PubChem (NIH)
- Research articles on ScienceDirect