Protein Phosphorylation
Protein Phosphorylation - Related Videos
04:14
Single-Molecule Pull-Down Assay for Protein Phosphorylation Analysis: A High Throughput Technique to Quantify Protein Phosphorylation in Cell Lysate
0 Views •
2025
This video demonstrates a sensitive quantification technique of protein phosphorylation using a single-molecule pull-down assay. The functionalization of polyethylene glycol-biotin and the use of labeled antibodies increases the detection of phosphorylated tyrosine with specificity.
01:02
Phosphorylation
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2019
The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins. During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
04:47
Nuclear Magnetic Resonance Spectroscopy to Identify Multiple Phosphorylations in Proteins
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2025
This video demonstrates the use of nuclear magnetic resonance spectroscopy (NMR) techniques to identify multiple phosphorylations in a protein. The phosphorylation of a protein at specific amino acid causes the deshielding of the neighboring amide hydrogen, which generates the spectral difference.
05:13
Time-Resolved Forster Resonance Energy Transfer for Monitoring Protein Phosphorylation in Cells
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2025
This video describes the time-resolved Förster resonance energy transfer or TR-FRET assay to determine endogenous protein phosphorylation with the help of donor and acceptor fluorophores tagged on antibodies specific to a test protein. This technique is designed to measure the phosphorylation of test proteins in cell lysates.
12:55
Assay for Phosphorylation and Microtubule Binding Along with Localization of Tau Protein in Colorectal Cancer Cells
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Cited by 11 •
2017
This manuscript describes standard protocols for measuring tau hyperphosphorylation, measuring tau binding to microtubules, and localization of intracellular tau following drug treatments. These protocols can be used repetitively for screening drugs or other compounds that target tau hyperphosphorylation or microtubule binding.
FAQs
Neuronal signaling depends on the balance between kinase-driven phosphate addition and phosphatase-driven removal. Because these activities act in opposite directions, cells can adjust a protein’s regulatory state rather than leaving it permanently changed. This reversibility supports rapid responses to neural signals and permits signaling pathways to be tuned as cellular conditions change.
The modified amino acid and the protein’s resulting state determine what phosphorylation changes accomplish. A phosphate group can alter activity, stability, interactions, or cellular distribution, so this modification provides several ways to regulate protein behavior. In neural cells, those effects create multiple control points for coordinating signaling proteins with changing neuronal demands.
Phosphorylation can regulate ion channel function and therefore influence how neurons handle signals. It also participates in synaptic transmission, where communication between neurons must respond to cellular activity. Examining these effects helps connect molecular changes in proteins with changes in neuronal signaling, rather than treating ion channels and synapses as fixed components.
Changes in neural activity can be linked to phosphorylation-dependent regulation of proteins involved in neuronal signaling. By altering protein activity, location, stability, or interactions, phosphorylation can help neurons adjust their responses as circuit activity changes. This provides a molecular basis for studying how cellular signaling contributes to adaptable neural circuit behavior.
Phosphorylation is relevant to neuronal development because it regulates proteins whose activity, location, stability, or interactions can change during cellular signaling. Investigating these modifications helps researchers connect molecular regulation with developmental processes in neurons. It also places developmental signaling within the broader framework of kinase and phosphatase activity.
Disrupted kinase or phosphatase activity can disturb the regulation of neuronal proteins and their signaling roles. Studying phosphorylation therefore helps researchers investigate molecular mechanisms associated with neurological disease. Because kinases and phosphatases control reversible regulatory changes, they may also provide potential therapeutic targets for correcting abnormal signaling.