Endotoxin contamination of protein solutions was reduced by a phase separation technique using the detergent, Triton X-114. Protein solutions containing endotoxin were treated with Triton X-114 on ice. The solution was then warmed to 37ยฐC, whereupon two phases formed. The Triton X-114 phase, contain
Removal of endotoxin from protein solutions by phase separation using triton X-114
โ Scribed by Yoshitomi Aida; Michael J. Pabst
- Book ID
- 118011418
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 359 KB
- Volume
- 132
- Category
- Article
- ISSN
- 0022-1759
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Rat intestinal microvillus membrane contains at least 24 polypeptides, of which 18 can be solubilized using Triton X-114 at 4 degrees C. Upon phase separation at 32 degrees C, 11 proteins separated nearly completely into the detergent-rich phase, while 9 proteins were found exclusively in the aqueou
Triton X-114 solutions separate above 22 degrees C into two immiscible aqueous phases. The more dense phase is enriched in detergent, and the less dense phase is depleted of detergent, relative to the original single phase. This phenomenon has been used to partition proteins according to hydrophobic