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Related Concept Videos

Redox Reactions01:27

Redox Reactions

Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...
Redox Reactions01:24

Redox Reactions

Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
Redox Equilibria: Overview01:23

Redox Equilibria: Overview

A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
Redox Titration: Other Oxidizing and Reducing Agents01:26

Redox Titration: Other Oxidizing and Reducing Agents

Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
Balancing Redox Equations02:58

Balancing Redox Equations

Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
Redox Titration: Overview01:21

Redox Titration: Overview

Redox titration is a chemical analysis technique used to determine the concentration of an unknown substance by measuring the electron transfer in a redox (reduction-oxidation) reaction. The process involves gradually adding a titrant with a known concentration of an oxidizing or reducing agent, to the analyte, the solution with an unknown concentration, until reaching the endpoint, which indicates the completion of the reaction between the two substances. Ensuring the analyte is in a single...

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Related Experiment Video

Updated: Jun 13, 2026

Cellular Redox Profiling Using High-content Microscopy
11:37

Cellular Redox Profiling Using High-content Microscopy

Published on: May 14, 2017

Src redox regulation: again in the front line.

Elisa Giannoni1, Maria Letizia Taddei, Paola Chiarugi

  • 1Department of Biochemical Sciences, Tuscany Tumor Institute, and Center for Research, Transfer, and High Education DenoTHE, University of Florence, 50134 Florence, Italy.

Free Radical Biology & Medicine
|May 4, 2010
PubMed
Summary
This summary is machine-generated.

Src-family kinases regulate cell functions, with activity controlled by phosphorylation and cysteine oxidation. Redox signaling impacts Src kinase, influencing cell motility and invasion.

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Defining Hsp33's Redox-regulated Chaperone Activity and Mapping Conformational Changes on Hsp33 Using Hydrogen-deuterium Exchange Mass Spectrometry
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Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Oncology

Background:

  • Src-family kinases (SFKs) are crucial regulators of cytoskeleton organization, cell proliferation, and signaling.
  • SFK activity is modulated by inhibitory phosphorylation and, more recently, by cysteine oxidation.
  • Redox regulation of SFKs is implicated in various cellular processes, including cancer progression.

Purpose of the Study:

  • To explore the role of redox regulation in Src kinase activity.
  • To understand how Src kinase interacts with oxidative signaling pathways.
  • To elucidate Src kinase's involvement in cell motility and invasion.

Main Methods:

  • Review of existing literature on Src kinase regulation and redox signaling.
  • Analysis of studies investigating Src kinase's role in cell adhesion, motility, and invasion.
  • Examination of the interplay between Src kinase and reactive oxygen species (ROS) production.

Main Results:

  • Src kinase activity is fine-tuned by both phosphorylation and cysteine oxidation.
  • Redox regulation of Src kinase is a significant factor in growth factor signaling, cell adhesion, and motility.
  • Src kinase influences ROS production at invadopodia and podosomes, impacting extracellular matrix degradation.

Conclusions:

  • Src kinase is a key mediator between oxidative signaling and cytoskeleton dynamics.
  • Redox control of Src kinase activity is vital for cellular processes like motility and invasion.
  • Understanding this interplay is critical for comprehending tumor progression and metastasis.