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Detergent Purification of Membrane Proteins01:18

Detergent Purification of Membrane Proteins

Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...

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Related Experiment Video

Updated: Jul 3, 2026

Isolation and Characterization Of Chimeric Human Fc-expressing Proteins Using Protein A Membrane Adsorbers And A Streamlined Workflow
10:33

Isolation and Characterization Of Chimeric Human Fc-expressing Proteins Using Protein A Membrane Adsorbers And A Streamlined Workflow

Published on: January 8, 2014

Fast and efficient protein purification using membrane adsorber systems.

Kirstin Suck1, Johanna Walter, Frauke Menzel

  • 1Institut für Technische Chemie der Universität Hannover, Callinstrasse 3, D-30167 Hannover, Germany.

Journal of Biotechnology
|September 15, 2005
PubMed
Summary
This summary is machine-generated.

This study introduces a new, rapid protein purification method using membrane adsorbers, significantly reducing time and cost compared to traditional chromatography for proteomic research.

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Area of Science:

  • Biochemistry
  • Proteomics
  • Biotechnology

Background:

  • Protein purification is crucial for proteomic research.
  • Traditional chromatography is time-consuming and expensive.
  • Membrane adsorbers offer a faster, gentler alternative.

Purpose of the Study:

  • To present a novel method for protein purification from cell extracts using membrane adsorber devices.
  • To demonstrate the efficiency and speed of this new technique.

Main Methods:

  • Utilized membrane adsorber devices with favorable pore structures for high flow rates and low back pressure.
  • Employed convective mass transfer for rapid separation.
  • Applied cation and anion exchange membrane adsorbers.

Main Results:

  • Successfully separated model proteins like human serum albumin (HSA) and immunoglobulin G (IgG).
  • Isolated human growth hormone (hGH) from Chinese Hamster Ovary (CHO) cell culture supernatant.
  • Purified penicillin acylase from Escherichia coli supernatant in a single step with high purity.

Conclusions:

  • Membrane adsorber devices provide a fast, effective, and gentle method for protein purification.
  • This technology is suitable for various complex cell culture samples.
  • Offers a significant improvement over conventional chromatographic techniques.