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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
Gene Expression - Molecular Biology

Stable Cas9-expressing cell lines

21/06/2017 by Dimitri Szymczak, PhD No Comments

Shen et al (Nature Methods, 2017) explore and identify synthetic interactions among 73 cancer-associated genes. To perform their loss of function screen they combined CAS9-expressing cell lines with a sgRNA library of high titer lentiviral particles. Most of these gene interactions were subsequently validated by drug treatment.

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ADME-Tox

New range of Pig P450s Bactosomes

19/06/2017 by Isabelle Nobiron, PhD No Comments

If you are looking for enzymatic in vitro tools for drug metabolism, reaction phenotyping, metabolite generation, using pig as model, you may find these newly released Pig Bactosomes from Cypex of interest.

Bactosomes are recombinant enzymes expressed in E. coli with a patented expression system that enables expression of drug metabolising enzymes without the need for large modifications to be made to the proteins. They demonstrate excellent batch-to-batch consistency and robust activity levels. Each batch is characterized for linearity with time and CYP concentration, Km and Vmax.

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Supplying Discovery Tools

Metabolite production made fast and easy – BMO Kits

13/06/2017 by Isabelle Nobiron, PhD No Comments

Metabolite characterization can be a lengthy process making your in vitro drug testing time consuming and expensive. Whether you are working on phase I or phase II metabolic enzymatic reactions, take a look at these BMO kits which can help you speed up this characterisation process.

The Phase I BMO metabolism kits take you through 3 simple steps:

  1. Perform the primary screen and select the desired metabolite wells (XTHCK1001-01)
  2. Perform the optimization and identify the best production conditions
  3. Scale-up and isolate the metabolite

 

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Biomarkers

Single-domain antibodies: Novel Llama immunoreagents

09/06/2017 by Isabelle Nobiron, PhD No Comments

A single-domain antibody (sdAb, also called Nanobody) is an antibody fragment consisting of a single monomeric variable antibody domain. Like a whole antibody, it is able to bind selectively to a specific antigen. With a molecular weight of only 12–15 kDA, single-domain antibodies are much smaller than common antibodies (150–160 kDa). They have been shown to be just as specific as a regular antibody and in some cases more robust. They are being researched for multiple pharmaceutical applications in in vivo imaging and targeted therapy. eg. the fusion of a fluorescent protein to a single-domain antibody can be used to trace targets in different compartments of living cells. They can therefore increase the possibilities of live cell microscopy and will enable novel functional studies.

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