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Introduction to molecular replacement: a time perspective.

Eleanor Dodson1

  • 1Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom.

Acta Crystallographica. Section D, Structural Biology
|July 1, 2021
PubMed
Summary
This summary is machine-generated.

Molecular replacement is a crystal phasing technique. This article reviews software, discusses future developments, and details examples to illustrate potential problems in molecular replacement.

Keywords:
crystal phasingcrystallographic equationscrystallographic theoryhistorymolecular replacementscoring functionstest cases

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Area of Science:

  • Crystallography
  • Structural Biology
  • Biophysics

Background:

  • Molecular replacement is a key technique for determining the three-dimensional structure of biological macromolecules.
  • Accurate phase information is crucial for solving crystal structures, and molecular replacement offers a viable solution when direct methods are challenging.

Purpose of the Study:

  • To provide a comprehensive introduction to the molecular replacement technique in crystallography.
  • To review current software tools and discuss future advancements in molecular replacement.
  • To illustrate practical challenges and solutions through detailed examples.

Main Methods:

  • The article introduces the fundamental principles and crystallographic equations underlying molecular replacement.
  • It reviews and compares various software packages available for performing molecular replacement.
  • Case studies are presented to demonstrate the application and troubleshooting of the technique.

Main Results:

  • An overview of the current state of molecular replacement software and methodologies.
  • Identification of common issues encountered during molecular replacement and strategies to overcome them.
  • Insights into the historical progress and future trajectory of crystal structure determination using molecular replacement.

Conclusions:

  • Molecular replacement remains an indispensable tool in structural biology for solving crystal structures.
  • Continued development of algorithms and software will further enhance the efficiency and applicability of molecular replacement.
  • Understanding potential pitfalls and employing appropriate strategies are essential for successful structure determination.