Related Experiment Video
Updated: Jan 5, 2026
09:25
ROS Live Cell Imaging During Neuronal Development
Published on: February 9, 2021
4.8K
Peroxiredoxin Proteins as Building Blocks for Nanotechnology
Frankie Conroy1, N Amy Yewdall2
1School of Biological Sciences, University of Auckland, Auckland, New Zealand.
Methods in Molecular Biology (Clifton, N.J.)
|October 16, 2019
Summary
Peroxiredoxins are versatile antioxidant proteins that can be manipulated into nanoscale structures for nanotechnology applications. Understanding their structural dynamics is key to harnessing their potential in advanced material design.
Area of Science:
- Biochemistry
- Nanotechnology
- Materials Science
Background:
- Peroxiredoxins are antioxidant proteins known for diverse quaternary structures.
- These structures are influenced by solution environment and protein sequence.
- This structural plasticity makes them suitable for nanoscale architecture construction.
Purpose of the Study:
- To provide knowledge on producing and manipulating peroxiredoxin proteins into desired structures.
- To detail methods for characterizing these protein structures.
- To establish a foundation for using peroxiredoxins in nanotechnology.
Main Methods:
- Dynamic light scattering (DLS)
- Analytical ultracentrifugation (AUC)
- Negative stain transmission electron microscopy (NS-TEM)
Main Results:
- The study outlines methods to control and characterize peroxiredoxin structures.
- It demonstrates the influence of environmental factors on protein assembly.
- Characterization techniques confirm structural diversity and arrangement.
Conclusions:
- Peroxiredoxins can be engineered into specific nanoscale architectures.
- The presented methods enable precise control over protein self-assembly.
- This work paves the way for novel nanotechnology applications using peroxiredoxins.
Keywords:
Analytical ultracentrifugationDynamic light scatteringNanotechnologyNegative stainPeroxiredoxinProteinProtein engineeringPrx3Self-assemblyTransmission electron microscopyMore Related Videos
09:33Imaging Approaches to Assessments of Toxicological Oxidative Stress Using Genetically-encoded Fluorogenic Sensors
Published on: February 7, 2018
7.8K
10:24Defining Hsp33's Redox-regulated Chaperone Activity and Mapping Conformational Changes on Hsp33 Using Hydrogen-deuterium Exchange Mass Spectrometry
Published on: June 7, 2018
9.1K
Related Concept Videos
01:24Peroxisomes
19.9K
Peroxisomes are specialized organelles present in fungi, plant, and animal cells. It can vary in number, size, morphology, and activity depending on the type of tissue and the nutritional state of the cell. For example, cells with active lipid metabolism, such as adipocytes, neurons, and hepatocytes, have more peroxisomes than other cells in the body. Besides their primary role in breaking down complex organic molecules, peroxisomes can also synthesize specific macromolecules and participate in...
19.9K
01:27Redox Reactions
816
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...
816
01:24Redox Reactions
58.1K
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...
58.1K
01:41The Supercomplexes in the Crista Membrane
2.9K
The mitochondrial cristae membrane is the primary site for the oxidative phosphorylation (OXPHOS) process of energy conversion mediated through respiratory complexes I to V. These complexes have been widely studied for decades, and it has been proven that they form supramolecular structures called respiratory supercomplexes (SC). These higher-order complexes may be crucial in maintaining the biochemical structure and improving the physiological activity of the individual complexes while...
2.9K
01:27Protein Import into the Peroxisomes
5.1K
Cells contain membrane-bound organelles called peroxisomes that oxidize organic molecules by transferring hydrogen atoms to oxygen, producing hydrogen peroxide. Peroxisomes enzymatically convert the released hydrogen peroxide into water and oxygen.
Peroxisomal Protein Import:
Peroxisomes lack the genetic machinery required to code for their own proteins. Hence, most peroxisomal membrane, lumenal and transmembrane proteins are synthesized in the cytoplasm or ER and transported to the peroxisome...
Peroxisomal Protein Import:
Peroxisomes lack the genetic machinery required to code for their own proteins. Hence, most peroxisomal membrane, lumenal and transmembrane proteins are synthesized in the cytoplasm or ER and transported to the peroxisome...
5.1K
01:17Oxidation of Phenols to Quinones
4.4K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
4.4K