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Related Experiment Video

Updated: Jun 17, 2026

From Constructs to Crystals – Towards Structure Determination of β-barrel Outer Membrane Proteins

From Constructs to Crystals – Towards Structure Determination of β-barrel Outer Membrane Proteins

Published on: July 4, 2016

Self-interaction chromatography as a tool for optimizing conditions for membrane protein crystallization.

Mads Gabrielsen¹, Lisa A Nagy, Lawrence J DeLucas

¹Division of Molecular and Cellular Biology, Faculty of Biological Life Sciences, University of Glasgow, Scotland.

Acta Crystallographica. Section D, Biological Crystallography

|January 9, 2010

Summary

Self-interaction chromatography determines protein self-interaction (B value) to optimize crystallization. This method successfully crystallized a membrane protein, enabling rapid screening of additives for improved crystal formation.

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Last Updated: Jun 17, 2026

From Constructs to Crystals – Towards Structure Determination of β-barrel Outer Membrane Proteins

From Constructs to Crystals – Towards Structure Determination of β-barrel Outer Membrane Proteins

Published on: July 4, 2016

Crystallization of Membrane Proteins in Lipidic Mesophases

Crystallization of Membrane Proteins in Lipidic Mesophases

Published on: March 28, 2011

High-throughput Crystallization of Membrane Proteins Using the Lipidic Bicelle Method

High-throughput Crystallization of Membrane Proteins Using the Lipidic Bicelle Method

Published on: January 9, 2012

Area of Science:

Biochemistry
Structural Biology
Membrane Protein Crystallization

Background:

Protein self-interaction influences solubility and crystallization.
The second virial coefficient (B value) quantifies these interactions.
A specific B value range, the 'crystallization slot,' promotes crystallization.

Purpose of the Study:

To demonstrate the utility of self-interaction chromatography for optimizing membrane protein crystallization.
To screen crystallization additives efficiently using this method.

Main Methods:

Utilizing self-interaction chromatography to determine the B value of the light-harvesting complex 1-reaction centre core complex.
Iterative cycles of chromatography and crystallization.
Screening of small molecules and detergents as crystallization additives.

Main Results:

Single straight-edged crystals of the target protein were obtained.
Self-interaction chromatography facilitated rapid screening of additives.
Improved crystallization conditions were identified for the membrane protein.

Conclusions:

Self-interaction chromatography is an effective method for determining protein B values.
This technique accelerates the optimization of membrane protein crystallization conditions.
The study successfully crystallized a challenging membrane protein complex.