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LifeSensors - Expression Systems

Research

LifeSensors
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LifeSensors

LifeSensors’s Research and Development Team is dedicated to developing technologies for difficult-to-express proteins and the ubiquitin Drug Discovery platform. In addition to the systems marketed on our website, we are constantly improving and developing new expression systems for E.coli, yeast, Pichia pastoris, and insect and mammalian cells. Currently our team is developing novel tags that enhance expression, induce cleavage that generates native structure, and aid in the purification of fusion proteins. Our novel tag is superior to nickel affinity chromatography for protein purification, and yet it is cost effective. Currently, our R&D Team is actively engaged in integrating LifeSensors’s protein expression platform into the production of therapeutic proteins.

Drug Discovery and Research Tools for Ubiquitin and UBL Pathway
LifeSensors has in place a dedicated team of biochemists and medicinal chemists engaged in development of tools to advance the science of ubiquitin and ubiquitin-like proteins (UBL). Its scientists have expressed and purified a number of de-ubiquitylases (DUBs) and ubiquitin ligases. LifeSensors leads the industry in developing the most novel assays for research and drug discovery, including multiplex assays for HTS.

LifeSensors produces the highest quality reagents and kits to assay DUBs and ligases in the industry. Many of these novel assays are proprietary technology developed at LifeSensors or licensed from the patent owners in industry or academia.

Functional DUB Production and Testing
UBs are very difficult to express. Nevertheless, LifeSensors has been able to express many functionally active DUBs using its proprietary technology. Its protocols for producing functional deubiquitinating enzymes for use in drug screening, cell biology, and therapeutic applications are well-known (see DUB Array below). In addition to the DUBs listed in our catalogue, numerous other functional DUBs are currently being generated and tested. Please contact us for additional information.

Antibody Generation
LifeSensors is currently involved in several collaborations to develop the highest quality antibodies for studying ubiquitin-like proteins, SUMO, and deubiquitinating enzymes. We are developing ubiquitin, SUMO, and deubiquitylase antibodies that will soon be available in our product catalogue for online ordering.

Assay Development
Our chemistry department is currently developing novel active protease arrays based on a proprietary chemical platform for use in early diagnosis of cancer and neurodegenerative diseases. Please contact us for additional information and possible collaboration.
LifeSensors News

HEADLINES

LifeSensors News
 
LifeSensors Launches DiUbiquitin Substrate
A Novel Fluorescent Assay for Ubiquitin Isopeptide Bond Cleavage
MALVERN, PA -- June 29, 2010 --LifeSensors, Inc., a biotechnology company, announces the launch of its novel physiologically relevant diubiquitin substrates for measuring isopeptide bond cleavage (patent applied for). This breakthrough technology, for both basic research and drug discovery targeting the ubiquitin proteasome pathway, offers sensitive, rapid, and robust fluorescent readouts of isopeptidase or de-ubquitylase (DUB) activity.
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LifeSensors

LifeSensors' Gender Sorting Technology Discussed
Feb 9th 2010 | From The Economist online
Dr Butt’s new device is an oestrogen sniffer. It relies on the fact that female embryos produce this hormone in quantity and male ones do not. The sensor uses a fine needle to penetrate both the shell and the allantoic sac of an egg. This sac is a fluid-filled membrane that cushions the embryo and helps it trade carbon dioxide for oxygen from the air. (It is also the membrane that can make peeling a hard-boiled egg such a frustrating affair.)
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LifeSensors

LifeSensors Publishes in Journal of Animal Science
2010 Jan 15.
An estrogen sensor for poultry gender sorting.

Tran HT, Ferrell W, Butt TR.

The need for segregation of poultry based on sex is driven by gender-related differences in growth rate, market age, management practices, and nutritional requirements. Each day, global poultry industry staff would ideally like to determine the gender of >150 million newly hatched birds. Currently, this can be done only manually at the hatchery, which is a virtually impossible undertaking. LifeSensors has developed a facile, rapid, and low cost yeast-based assay that distinguishes male from female embryonated eggs before hatching based on the estrogen level of their allantoic fluid.
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