| newsletter 2 / 2018 | 
|
|||
| cell concepts gmbh | ||||
|
Surfactants for
Integral Membrane Proteins |
mundenhofer weg 28 79224 umkirch | |||
| fon +49 7665 980410 | ||||
| fax +49 7665 980421 | ||||
| info@cellconcepts.de | ||||
| www.cellconcepts.de | ||||
| freiburg hrb 4366 | ||||
|
|
Under
G-Biosciences label CELL CONCEPTS GmbH offers specially formulated reagents
(detergents/surfactants) to aid the extraction, stabilization and
crystallization of therapeutic integral membrane protein targets or antigens
(while preserving their native three dimensional structure and function).
• No refolding • No mutagenesis/truncation/fusion • Striking stability improvement • High purity • Maintain functional and structural integrities These reagents can be used to isolate/purify integral membrane proteins with the highest purity levels while keeping their structural and functional integrity (no refolding or mutagenesis). This has a significantly beneficial impact on the quality of the protein and on the success of the proteomics and drug discovery applications. We offer two varieties of innovative and customized surfactants that adapt to the biochemical characteristics of the target during the solubilization, purification/stabilization steps: |
|||
|
Calixarene
surfactants |
||||
| These molecules are designed to structure the membrane domains of proteins through hydrophobic interactions and a network of salt bridges with the basic residues found at the cytosol-membrane interface of membrane proteins. | ||||
|
Fluorinated
poly(tris) and bis-glucose surfactants |
||||
|
Fluorinated
surfactants are unable to extract proteins from membrane, but are useful for
membrane protein stabilization in subsequent purification steps as they do
not strip natural lipids and other co-factors from the proteins. In addition,
the bulky fluorinated tails can not penetrate into the interior and disrupt
structure. Fluorinated surfactants often decrease non-specific aggregation
and are thought to result in improved distribution on cryo-EM grids and
better vitrification for cryo-EM data collection. They are also reported to
increase crystallizability. The bis-glucose compounds have a tetradhedral
chiral carbon with two polar headgroups (the glucose moieties) and a long
hydrophobic fluorinated tail. In this way they resemble the neo-pentyl glycol
detergents, such as LMNG that have seen some recent success in structural
biology. |
||||
| You may place your order either by e-m: info@cellconcepts.de fon: +497665 980410 or fax: +497665 980421 | ||||
| Sincerely yours | ||||
| CELL CONCEPTS GmbH | ||||
| Copyright © CELL CONCEPTS GmbH 1992 - 2018. | ||||
| All rights reserved. Any unauthorized use, reproduction or transfer of this message or its contents, is strictly prohibited | published 15.061.2018 | |||