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Related Concept Videos

Molecular Chaperones and Protein Folding03:00

Molecular Chaperones and Protein Folding

The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
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Bacterial protein maturation is a tightly regulated process that ensures newly synthesized polypeptides achieve correct functional conformations. This maturation involves a series of modifications, folding events, and quality control steps, often assisted by specialized chaperone proteins.N-Terminal ModificationsThe maturation of bacterial polypeptides begins cotranslationally as the polypeptide exits the ribosome. The first amino acid, N-formylmethionine (fMet), is typically modified at the...
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Related Experiment Video

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From Constructs to Crystals – Towards Structure Determination of β-barrel Outer Membrane Proteins
09:55

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

Published on: July 4, 2016

Crystallization chaperone strategies for membrane proteins.

Raquel L Lieberman1, Jeffrey A Culver, Kevin C Entzminger

  • 1School of Chemistry and Biochemistry, Institute for Bioscience and Bioengineering, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, GA 30332, USA. raquel.lieberman@chemistry.gatech.edu

Methods (San Diego, Calif.)
|August 23, 2011
PubMed
Summary

Determining membrane protein structures is crucial for drug discovery. This review highlights the success of crystallization chaperones and novel engineering approaches to overcome structural determination challenges.

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Crystallization of Membrane Proteins in Lipidic Mesophases

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Last Updated: May 30, 2026

From Constructs to Crystals – Towards Structure Determination of β-barrel Outer Membrane Proteins
09:55

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

Published on: July 4, 2016

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
22:00

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases

Published on: November 21, 2010

Crystallization of Membrane Proteins in Lipidic Mesophases
11:53

Crystallization of Membrane Proteins in Lipidic Mesophases

Published on: March 28, 2011

Area of Science:

  • Biochemistry
  • Structural Biology
  • Drug Discovery

Background:

  • Membrane proteins are key drug targets, but their 3D structures are difficult to determine.
  • Existing methods for membrane protein structure determination are often inefficient and labor-intensive.

Purpose of the Study:

  • To review the successes of crystallization chaperones in membrane protein structure determination.
  • To discuss recent advancements in engineering these chaperones for improved crystallizability.
  • To introduce a novel generic approach for targeting any membrane protein of interest.

Main Methods:

  • Review of existing literature on crystallization chaperones for membrane proteins.
  • Discussion of molecular display techniques for enhancing chaperone crystallizability.
  • Overview of a new generic approach for chaperone-mediated structure determination.

Main Results:

  • Crystallization chaperones have proven successful in determining the structures of various membrane proteins.
  • Engineering efforts, including molecular display, have significantly improved chaperone crystallizability.
  • A novel generic approach shows promise for broad applicability in membrane protein structure determination.

Conclusions:

  • Crystallization chaperones are vital tools for advancing membrane protein structure-based drug discovery.
  • Ongoing engineering and development of novel approaches will further enhance the ability to solve challenging membrane protein structures.
  • These advancements are expected to accelerate the identification and development of new therapeutics targeting membrane proteins.