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Related Experiment Videos

Modern developments in molecular replacement

J P Turkenburg1, E J Dodson

  • 1Chemistry Department, University of York, Heslington, UK. j.turkenburg@yorvic.york.ac.uk

Current Opinion in Structural Biology
|October 1, 1996
PubMed
Summary
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Molecular replacement is a powerful technique for solving unknown protein structures using known related molecules. Advances in automation and imprecise models are expanding its applications in structural biology.

Area of Science:

  • Structural biology
  • X-ray crystallography

Background:

  • Molecular replacement (MR) is a key method for determining the three-dimensional structure of proteins.
  • The number of protein structures solved using MR has significantly increased.
  • Automated software has simplified the MR process.

Purpose of the Study:

  • To review the advancements and applications of molecular replacement in structural biology.
  • To highlight the impact of automated tools and imprecise models on MR.
  • To discuss the necessity of new rebuilding and refinement strategies.

Main Methods:

  • Utilizing known protein structures as search models for phasing.
  • Employing automated software packages for molecular replacement calculations.
  • Developing new approaches for rebuilding and refinement with imprecise models.

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Main Results:

  • Successful phasing and structure determination for numerous proteins using MR.
  • Increased efficiency and accessibility of MR due to automation.
  • Adaptation of MR techniques for fragmented complexes and models from NMR or homology modeling.

Conclusions:

  • Molecular replacement is a vital and increasingly accessible technique in structural biology.
  • Progress in automation and handling imprecise models continues to drive MR applications.
  • Further development in rebuilding and refinement is crucial for complex structures determined by MR.