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Tebubio's blog - Acting and reacting in life sciences and biotechnologies
  • Home
  • Research areas
    • ADME-Tox
    • Biomarkers
    • Cell Biology and Signalling
    • Cell Sourcing – Cell Culture Technologies
    • Drug Discovery
    • Gene Expression – Molecular Biology
    • Stem Cells
    • Supplying Discovery Tools
  • Contact us
  • Meet the authors
Supplying Discovery Tools

Antibody Purification: Tips and Tricks

09/09/2019 by Isabelle Topin, PhD No Comments

For all species, classes or size (FL vs. fragments)

Whatever the type of antibody production (hybridoma or recombinant protein production in bacteria or in mammalian cells), you need to isolate your antibody of interest from other proteins present in the sample (sera, ascites fluid, medium, cell lysate…).

In order to isolate the antibody of interest, you need to select the right strategy depending on the nature of the antibody (species, class, tagged or not), the purity required and the intrinsic antibody physico-chemistry.

Since 2000, tebu-bio provides antibody services from production to purification, we can help you further determine the most appropriate strategy by considering all parameters, including intrinsic antibody characteristics and following experimental requirements.

This article is your first guide to prepare the best angle of attack to put into action!

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Supplying Discovery Tools

Monoclonal antibodies – all you need to know about antibody generation

13/11/2018 by Isabelle Topin, PhD 4 Comments
Antibodies - by Isabelle Topin - tebu-bio

Antibody generation raises a number of questions… what is the difference between their classes, forms and types? And how do recombinant monoclonal antibodies (rAbs) overcome the drawbacks of classical monoclonal antibodies (mAbs)?

Monoclonal antibodies are ubiquitous in biomedical research and medicine. They are used to fight, diagnose and research disease and to develop and test new drugs. The antibodies are divided in 5 classes or isotypes, several subtypes and forms and can be generated in vivo or in vitro.

In this short article, my aim is to define what an antibody is, to highlight the differences between a hybridoma monoclonal antibody and a recombinant monoclonal antibody and to point out how rAbs bring solutions to the classical drawbacks of mAbs.

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Supplying Discovery Tools

Tips and Tricks: how to increase unstable protein expression in E. Coli

28/06/2018 by Isabelle Topin, PhD No Comments

Recombinant protein expression and purification for therapeutic development or for in vitro studies can sometimes be a real challenge. It requires huge investments in both time and cost in order to obtain high yields of pure and active recombinant proteins. My aim in writing this post, is to give you a simple guide to easily establish optimal conditions for recombinant protein expression and production in E. Coli, of problematic unstable proteins of interest.

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Drug Discovery

Tips and Tricks – Protein purification and production for LC-MS characterization

26/01/2018 by Isabelle Topin, PhD No Comments

Mass spectrometry is a technology which is widely used in most scientific disciplines that require accurate and precise measurement of elemental and molecular components. Its use in the pharmaceutical sector is often associated with the Drug Discovery and Development process. The primordial step to analyze a sample is to perform a sample treatment to enable its study. It really requires know-how to obtain good quality results. The following tips and tricks can help you to rapidly select a protein purification strategy and to anticipate some possible problems.

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