Corporate Banner
Satellite Banner
Scientific Communities
Become a Member | Sign in
Home>News>This Article

Bio-Rad’s New Image Lab™ Software Automates Total Protein Normalization for More Accurate Western Blotting Analysis

Published: Sunday, November 11, 2012
Last Updated: Sunday, November 11, 2012
Bookmark and Share
Software Provides Alternative to Potentially Misleading Housekeeping Proteins

Bio-Rad Laboratories, Inc. has introduced the new Image Lab 4.1 software for use with the ChemiDoc™ MP imaging system. The new software automates multiplex analysis, providing a faster, more accurate alternative for quantifying protein expression levels via western blotting.

Proving that quantitative differences of a target protein are a result of biological differences and not experimental variability (such as unequal protein loading) is critical when conducting western blotting experiments. Typically, scientists comparing gene expression levels use a housekeeping protein (HKP) as a loading control with the assumption that HKP expression does not change based on treatment type or sample origin. However, both of these conditions can alter HKP expression, undermining its value as a normalization control.

Total protein normalization has been shown to be more stable than HKP normalization regardless of conditions or sample type (ref DOI 10.1002/pmic.200400941). Also total protein normalization saves time by eliminating the need for multiple probing steps or optimizing a multiplex blot, both of which are often required to normalize with housekeeping proteins.

Normalizing total proteins via stain-free detection, a capability provided only by Bio-Rad‘s ChemiDoc MP imaging system, offers advantages including speed, increased linearity, and wider dynamic range, over other total protein detection methods such as SYPRO Ruby and Ponceau S.

Image Lab 4.1 automates total protein normalization of multiplex fluorescent western blots by extracting image data directly from the ChemiDoc MP imager. Traditional image analysis methods require researchers to extract data into a spreadsheet program and manually manipulate data to produce a result. With Image Lab 4.1 software, however, researchers can deliver normalized intensities automatically by selecting detection and normalization channels, then clicking the Normalization button. Normalization is available with chemiluminescent blots as well as multiplex fluorescent blots.

Stain-free total protein normalization is part of Bio-Rad’s new V3 Western Workflow, which speeds the western blotting process and provides researchers with the reassurance that their immunoblotting process is working as expected. Using stain-free detection, scientists can visualize protein separation without staining, verify protein transfer to the membrane, and validate the results by total protein normalization.

Further Information
Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 2,600+ scientific posters on ePosters
  • More Than 3,800+ scientific videos on LabTube
  • 35 community eNewsletters

Sign In

Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Presentations at the AACR Annual Meeting to Highlight Advances in Cancer Research Made Possible by Bio-Rad’s Droplet Digital™ PCR Technology
Tailoring Treatments and Tracking Mutations with Liquid Biopsies possible with ddPCR™ technology
Wednesday, April 22, 2015
Bio-Rad Reports Fourth-Quarter and Full-Year 2014 Financial Results
Company has introduced its S3e™ Cell Sorter during the quarter.
Saturday, March 07, 2015
Accurate Determination of Copy Number States for Multiallelic Copy Number Variations
Researchers use next-generation sequencing (NGS) and Bio-Rad’s Droplet Digital PCR (ddPCR™) technology to solve the technical challenge.
Tuesday, March 03, 2015
Awards for Bio-Rad's Protein Expression Products and Genomic Workflow Solutions
BioInformatics LLC has recognized Bio-Rad with two prestigious Life Science Industry Awards for “Best Protein Expression & Analysis Products” and “Best Workflow Solutions — Genomics.”
Monday, January 19, 2015
Quantitative Western Blotting Using Stain-Free Technology
Bio-Rad hosted two seminars at the EB 2014 in which KOLs discussed approaches to improve the accuracy of western blotting quantitation using Bio-Rad’s stain-free technology.
Friday, September 05, 2014
Bio-Rad Acquires Sequencing Technology Company GnuBIO
GnuBIO is a privately-held life sciences company that has developed a droplet-based DNA sequencing technology.
Friday, April 11, 2014
Royal Canadian Mounted Police to Use Bio-Rad’s KnowItAll® Spectroscopy Software for Analysis of Automobile Crime Scene Samples
Using the KnowItAll software to search multiple automobile paint layers found at a crime scene against the PDQ database, forensic scientists can determine the make, model, year, and manufacturing origin of the samples.
Sunday, March 30, 2014
Bio-Rad Partners with the U.S. Pharmacopeial Convention
Company announces the availability of a beta version of the USP Spectral Library™ for raw material identification in the food and drug industries.
Thursday, March 06, 2014
Droplet Digital PCR Enables Measurement of Potential Cancer Survival Biomarker
Study paves the way for further research into the role of TIL quantification in immunotherapy and as a cancer survival predictor.
Tuesday, December 10, 2013
A Brief RT-qPCR “Field Guide” for MIQE Adherence
Bio-Rad’s Sean Taylor and Eli Mrkusich have published a practical guide for MIQE compliance.
Monday, December 09, 2013
Accurate Detection of Extremely Rare Mitochondrial DNA Deletions Associated with Aging
The study published in Aging Cell identifies a new tool to accurately analyze extremely rare mitochondrial DNA deletions associated with a range of diseases and disorders as well as aging.
Thursday, September 05, 2013
Researchers Develop Rapid, Cost-Effective Early Detection Method for Organ Transplant Injury
Chronix Biomedical and transplant expert Prof. Oellerich use Droplet Digital™ PCR to quantify early rejection biomarker.
Thursday, August 29, 2013
Accurate Quantification of NGS Libraries
A study has found that Droplet Digital PCR (ddPCR™) can be used as an accurate and precise method for quality control of NGS libraries.
Tuesday, August 20, 2013
New Biomarker Could Reveal Alzheimer's Disease Years Before Onset
A new study has reported the identification of what may be the earliest known biomarker associated with the risk of developing Alzheimer's disease (AD).
Wednesday, August 14, 2013
Producing Reliable Quantitative Western Blot Data
The reporting of fold changes in protein expression from western blots is often viewed with skepticism due to questions about the validity of the technique as a quantitative method.
Monday, June 17, 2013
Scientific News
Genetic Defences of Bacteria Don’t Aid Antibiotic Resistance
Genetic responses to the stresses caused by antibiotics don’t help bacteria to evolve a resistance to the medications, according to a new study by Oxford University researchers.
Detecting HIV Diagnostic Antibodies with DNA Nanomachines
New research may revolutionize the slow, cumbersome and expensive process of detecting the antibodies that can help with the diagnosis of infectious and auto-immune diseases such as rheumatoid arthritis and HIV.
Snapshot Turns T Cell Immunology on its Head
New research may have implications for 1 diabetes sufferers.
Tolerant Immune System Increases Cancer Risk
Researchers have found that individuals with high immunoCRIT ratios may have an increased risk of developing certain cancers.
Developing a Gel that Mimics Human Breast for Cancer Research
Scientists at the Universities of Manchester and Nottingham have been funded to develop a gel that will match many of the biological structures of human breast tissue, to advance cancer research and reduce animal testing.
Cell's Waste Disposal System Regulates Body Clock Proteins
New way to identify interacting proteins could identify potential drug targets.
New Approach to Treating Heparin-induced Blood Disorder
A potential treatment for a serious clotting condition that can strike patients who receive heparin to treat or prevent blood clots may lie within reach by elucidating the structure of the protein complex at its root.
Horse Illness Shares Signs of Human Disease
Horses with a rare nerve condition have similar signs of disease as people with conditions such as Alzheimer’s, a study has found.
How a Molecular Motor Untangles Protein
Diseases such as Alzheimer’s, Parkinson’s and prion diseases, all involve “tangled” proteins.
Compound Doubles Up On Cancer Detection
Researchers have found that tagging a pair of markers found almost exclusively on a common brain cancer yields a cancer signal that is both more obvious and more specific to cancer.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
2,600+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
3,800+ scientific videos