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Related Experiment Videos

Crystallization experiments with 2-enoyl-CoA hydratase, using an automated 'fast-screening' crystallization protocol.

J P Zeelen1, J K Hiltunen, T A Ceska

  • 1European Molecular Biology Laboratory, Heidelberg, Germany.

Acta Crystallographica. Section D, Biological Crystallography
|July 1, 1994
PubMed
Summary

An automated fast-screen protocol simplifies screening crystallization conditions for proteins like enoyl-CoA hydratase. This method, utilizing a crystallization robot, successfully yielded different crystal forms for the enzyme.

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Area of Science:

  • Biochemistry
  • Structural Biology
  • Crystallography

Background:

  • Enoyl-CoA hydratase (E.C. 4.2.1.17) is a key enzyme in fatty acid metabolism.
  • It catalyzes the hydration of enoyl-CoA to hydroxy-acyl-CoA.
  • Purified from rat-liver mitochondria, its structural characterization is important.

Purpose of the Study:

  • To implement and test an automated fast-screen protocol for protein crystallization.
  • To determine optimal crystallization conditions for enoyl-CoA hydratase.
  • To obtain diffraction-quality crystals for structural analysis.

Main Methods:

  • Utilized an automated fast-screen protocol for initial crystallization screening.
  • Employed a crystallization robot for preparing screening and optimization solutions.

Related Experiment Videos

  • Tested the protocol on purified enoyl-CoA hydratase from rat-liver mitochondria.

    • Main Results:

    • Successfully identified conditions for enoyl-CoA hydratase crystallization.
    • Obtained different crystal forms of the enzyme.
    • Achieved crystal diffraction to 3.0 Å resolution.

    Conclusions:

    • The automated fast-screen protocol is a convenient and effective method for protein crystallization screening.
    • This approach facilitates the structural determination of enzymes like enoyl-CoA hydratase.
    • The obtained crystal forms provide a basis for further structural studies of fatty acid metabolism enzymes.