OxyICC™ Oxidized Protein Detection Kit

Key Applications	Detection Methods
IF, ICC	Fluorescent

Key Applications

Detection Methods

IF, ICC

Fluorescent

Description
Catalogue Number	S7350
Trade Name	OxyICC
Description	OxyICC™ Oxidized Protein Detection Kit
Overview	The OxyICC™ kit provides reagents for immunodetection of protein carbonyls by fluorescent immunocytochemistry. The assay procedure is simple and the results obtained are highly sensitive and quantitative.
Background Information	Oxidative stress has been found to play a key role in a number of pathological disorders. These affects appear to be mediated by reactive oxygen species (ROS) which cause modifications to proteins, lipids, and DNA. In the case of proteins the ROS primarily cause carbonyl derivatives on amino acid sidechains affecting their enzymatic and biochemical functionality. Not surprisingly, carbonyl formation has become an important biomarker for oxidative stress. Reactive oxygen species (ROS) have been implicated in pathological processes including cancer, apoptosis, aging, neurodegenerative diseases, chronic inflammatory diseases, pulmonary diseases, and cardiovascular diseases (for reviews, see ref. 1-4). Living organisms are continually exposed to potentially harmful oxygen free radicals that are generated thru normal cellular functions as well as from environmental factors (1, 5-7). Yet, these reactive molecules are mitigated by the presence of antioxidants and therefore organisms exist with a delicate balance between oxidants and antioxidants (7-9). During times of oxidative stress there is an imbalance in favor of the oxidants. The end result of which is that free radicals are able to attack and modify subcellular components including nucleic acids, lipids and proteins (7, 10-12). In some cases, cells respond to the oxidative stimuli and allow the organism to adapt to the oxidative stress (13-15). Proteins are one of the major targets of oxygen free radicals and other reactive species. Oxidation of proteins modifies the side chains of methionine, histidine, and tyrosine and forms cysteine disulfide bonds (16-19). Metal catalyzed oxidation of proteins introduces carbonyl groups (aldehydes and ketones) at lysine, arginine, proline or threonine residues in a site-specific manner (16, 20-22). The oxidative modification of proteins can modulate biochemical characteristics of proteins such as enzymatic activity (21-23), DNA binding activities of transcription factors (24-26), and the susceptibility to proteolytic degradation (12, 25-28). While a relationship between protein oxidation and aging has been suggested (29-31), little is known about the importance of oxidative modification of individual proteins in the pathophysiology of free radical mediated processes. Not surprisingly, carbonyl modification of proteins has become a key biomarker for the identification of oxidative stress. To assist in these research efforts Millipore now offers the OxyICC kit which contains the chemical and immunological reagents necessary to detect the carbonyl groups using fluorescent immunocytochemistry. The test method involves chemical derivatization of protein carbonyl groups with 2,4-dinitrophenylhydrazine (DNPH). This chemical reaction results in proteins being covalently coupled to DNP at their carbonyl sites. The DNP-derivatized proteins are then detected using biotinylated antibodies that are specifically reactive for the DNP moiety. Subsequent incubation with fluorescently conjugated streptavidin enables detection using fluorescence microscopy. The amount of fluorescence detected is correlated to the extent of oxidative stress that the cell was subjected to.

Description

Catalogue Number

S7350

Trade Name

OxyICC

Description

OxyICC™ Oxidized Protein Detection Kit

Overview

The OxyICC™ kit provides reagents for immunodetection of protein carbonyls by fluorescent immunocytochemistry. The assay procedure is simple and the results obtained are highly sensitive and quantitative.

Background Information

Oxidative stress has been found to play a key role in a number of pathological disorders. These affects appear to be mediated by reactive oxygen species (ROS) which cause modifications to proteins, lipids, and DNA. In the case of proteins the ROS primarily cause carbonyl derivatives on amino acid sidechains affecting their enzymatic and biochemical functionality. Not surprisingly, carbonyl formation has become an important biomarker for oxidative stress.

Reactive oxygen species (ROS) have been implicated in pathological processes including cancer, apoptosis, aging, neurodegenerative diseases, chronic inflammatory diseases, pulmonary diseases, and cardiovascular diseases (for reviews, see ref. 1-4).

Living organisms are continually exposed to potentially harmful oxygen free radicals that are generated thru normal cellular functions as well as from environmental factors (1, 5-7). Yet, these reactive molecules are mitigated by the presence of antioxidants and therefore organisms exist with a delicate balance between oxidants and antioxidants (7-9). During times of oxidative stress there is an imbalance in favor of the oxidants. The end result of which is that free radicals are able to attack and modify subcellular components including nucleic acids, lipids and proteins (7, 10-12). In some cases, cells respond to the oxidative stimuli and allow the organism to adapt to the oxidative stress (13-15).

Proteins are one of the major targets of oxygen free radicals and other reactive species. Oxidation of proteins modifies the side chains of methionine, histidine, and tyrosine and forms cysteine disulfide bonds (16-19). Metal catalyzed oxidation of proteins introduces carbonyl groups (aldehydes and ketones) at lysine, arginine, proline or threonine residues in a site-specific manner (16, 20-22). The oxidative modification of proteins can modulate biochemical characteristics of proteins such as enzymatic activity (21-23), DNA binding activities of transcription factors (24-26), and the susceptibility to proteolytic degradation (12, 25-28). While a relationship between protein oxidation and aging has been suggested (29-31), little is known about the importance of oxidative modification of individual proteins in the pathophysiology of free radical mediated processes.

Not surprisingly, carbonyl modification of proteins has become a key biomarker for the identification of oxidative stress. To assist in these research efforts Millipore now offers the OxyICC kit which contains the chemical and immunological reagents necessary to detect the carbonyl groups using fluorescent immunocytochemistry. The test method involves chemical derivatization of protein carbonyl groups with 2,4-dinitrophenylhydrazine (DNPH). This chemical reaction results in proteins being covalently coupled to DNP at their carbonyl sites. The DNP-derivatized proteins are then detected using biotinylated antibodies that are specifically reactive for the DNP moiety. Subsequent incubation with fluorescently conjugated streptavidin enables detection using fluorescence microscopy. The amount of fluorescence detected is correlated to the extent of oxidative stress that the cell was subjected to.

Product Information
Components	S7350-1 (Store at 2-8ºC) Streptavidin-Cy3: (Part No. CS203022) 15µL solution. 2,4-Dinitrophenylhydrazine Solution: (Part No. CS201876) One vial with 1.1mL. 10x PBS Wash Buffer: (Part No. CS201873) One 130mL bottle. 5x Blocking Buffer: (Part No. CS203024) One 10mL bottle. MILLEX® GP Filter Units (0.22µm): (Part No. SLGP033RB) 3 filters. S7350-2 (Store at - 20ºC) Anti-DNP, Biotinylated (mouse monoclonal) Antibody: (Part No. CS203021) 15µL of a 1mg/mL solution. DAPI: (Part No. CS202687) 10 L of 1mg/mL solution.
Detection method	Fluorescent

Product Information

Components

S7350-1 (Store at 2-8ºC)
Streptavidin-Cy3: (Part No. CS203022) 15µL solution.
2,4-Dinitrophenylhydrazine Solution: (Part No. CS201876) One vial with 1.1mL.
10x PBS Wash Buffer: (Part No. CS201873) One 130mL bottle.
5x Blocking Buffer: (Part No. CS203024) One 10mL bottle.
MILLEX® GP Filter Units (0.22µm): (Part No. SLGP033RB) 3 filters.

S7350-2 (Store at - 20ºC)
Anti-DNP, Biotinylated (mouse monoclonal) Antibody: (Part No. CS203021) 15µL of a 1mg/mL solution.
DAPI: (Part No. CS202687) 10 L of 1mg/mL solution.

Detection method

Fluorescent

Applications
Application	The OxyICC kit provides reagents for immunodetection of protein carbonyls by fluorescent ICC.
Key Applications	Immunofluorescence Immunocytochemistry
Application Notes	Peroxide stressed cell protocol: - Plate cells normal density (typically add ~30k per well of an 8 well chamber slide). - Incubate overnight - Remove media - Add fresh media containing H₂O₂ (500uM treatment for 30 minutes or 50uM treatment overnight) - After appropriate incubation wash cells gently 2X with PBS - Fix cells with ice cold methanol - Continue with the OxyICC protocol.

Applications

Application

The OxyICC kit provides reagents for immunodetection of protein carbonyls by fluorescent ICC.

Key Applications

Immunofluorescence
Immunocytochemistry

Application Notes

Peroxide stressed cell protocol:
- Plate cells normal density (typically add ~30k per well of an 8 well chamber slide).
- Incubate overnight
- Remove media
- Add fresh media containing H₂O₂ (500uM treatment for 30 minutes or 50uM treatment overnight)
- After appropriate incubation wash cells gently 2X with PBS
- Fix cells with ice cold methanol
- Continue with the OxyICC protocol.

Product Usage Statements
Usage Statement	Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Product Usage Statements

Usage Statement

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage and Shipping Information
Storage Conditions	Dual Temperature Storage (See Manual for details) Store for up to 6 months after date of receipt.

Storage and Shipping Information

Storage Conditions

Dual Temperature Storage (See Manual for details) Store for up to 6 months after date of receipt.

Packaging Information
Material Size	40 Reactions in an 8 Chamber Slide

Packaging Information

Material Size

40 Reactions in an 8 Chamber Slide

实验耗材

分子生物学试剂

蛋白与免疫学

生化试剂

细胞及检测试剂

色谱及层析

仪器设备

实验服务

办公用品

OxyICC™ Oxidized Protein Detection Kit

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