Fast Oxidation Of Proteins
Fast Oxidation Of Proteins - Related Videos
09:03
Characterizing Cellular Proteins with In-cell Fast Photochemical Oxidation of Proteins
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Cited by 2 •
2020
Here, we characterize protein structure and interaction sites in living cells using a protein footprinting technique termed in-cell fast photochemical oxidation of proteins (IC-FPOP).
07:38
Enabling Real-Time Compensation in Fast Photochemical Oxidations of Proteins for the Determination of Protein Topography Changes
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Cited by 8 •
2020
Fast photochemical oxidation of proteins is an emerging technique for the structural characterization of proteins. Different solvent additives and ligands have varied hydroxyl radical scavenging properties. To compare the protein structure in different conditions, real-time compensation of hydroxyl radicals generated in the reaction is required to normalize reaction conditions.
08:13
Microwave-driven Synthesis of Iron Oxide Nanoparticles for Fast Detection of Atherosclerosis
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Cited by 2 •
2016
Microwave technology enables extremely fast synthesis of iron oxide nanoparticles for atherosclerosis plaque characterization. The use of an aminobisphosphonate in the external side of the nanoparticle provides a fast accumulation in the atherosclerotic area.
09:49
Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor
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Cited by 1 •
2016
A quick protocol for proteolytic digestion with an in-house built flow-through tryptic microreactor coupled to an electrospray ionization (ESI) mass spectrometer is presented. The fabrication of the microreactor, the experimental setup and the data acquisition process are described.
05:50
Platform Incubator with Movable XY Stage: A New Platform for Implementing In-Cell Fast Photochemical Oxidation of Proteins
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2021
A new static platform is used to characterize protein structure and interaction sites in the native cell environment utilizing a protein footprinting technique called in-cell fast photochemical oxidation of proteins (IC-FPOP).
FAQs
Oxidant reactivity depends partly on which amino acid side chains are exposed and chemically susceptible. Cysteine, methionine, and aromatic residues can undergo distinct modifications, so the same protein may produce different oxidation patterns. These site-specific changes help explain why oxidation can affect particular structural regions or functional features rather than altering every part of the protein equally.
Different oxidizing reactions create different chemical products. Cysteine oxidation can promote disulfide formation, methionine can form sulfoxide, and other susceptible residues can contribute to carbonylation, cross-linking, or peptide-bond cleavage. Because these products alter chemical connectivity or side-chain properties in different ways, they can cause distinct changes in protein structure, activity, and cellular fate.
The speed and overall extent of oxidation provide complementary information about protein damage or regulation. Rapid modification may reveal strong oxidant exposure or highly reactive sites, while greater accumulated oxidation indicates a larger chemical burden. Relating these measurements to folding, enzyme activity, aggregation, or degradation helps biochemists determine how oxidation changes protein behavior.
Oxidation products serve as molecular indicators of how proteins have responded to oxidants. Detecting disulfide formation, carbonylation, sulfoxide formation, cross-linking, or peptide-bond cleavage can show which types of chemical change occurred and how extensively. Comparing these products with protein folding, activity, aggregation, or degradation connects measurable chemistry with functional and cellular consequences.
A useful analysis links three observations: the oxidation rate, the extent of modification, and the resulting protein outcome. Researchers can characterize oxidation products, then assess whether associated changes involve folding, enzyme regulation, aggregation, or degradation. This approach avoids treating oxidation as a single endpoint and instead relates chemical modifications to specific biochemical consequences.
This topic is relevant to studies of oxidative stress, redox signaling, disease mechanisms, and therapeutic protein stability. In oxidative-stress research, oxidation products can indicate chemical damage; in redox signaling, modifications may relate to regulation. Disease studies can connect altered protein fate with pathology, while stability investigations examine how oxidation affects therapeutic proteins during their functional lifetime.