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X-ray Crystallography02:18

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The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
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Crystallographic point groups represent the various symmetry operations that can occur within crystals. They are unique in that at least one point will always remain unchanged during these actions. For instance, consider the triclinic system. This system, devoid of any axis or plane of symmetry, aligns with the C1 and Ci point groups.where Cᵢ is characterized solely by a center of inversion.Contrastingly, the monoclinic system introduces an element of symmetry. This system with one plane...
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X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
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In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...
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Microcrystallography of Protein Crystals and In Cellulo Diffraction
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Archiving raw crystallographic data.

Thomas C Terwilliger1

  • 1Bioscience Division, Los Alamos National Laboratory, Mail Stop M888, Los Alamos, NM 87507, USA.

Acta Crystallographica. Section D, Biological Crystallography
|October 8, 2014
PubMed
Summary
This summary is machine-generated.

The International Union of Crystallography (IUCr) Diffraction Data Deposition Working Group is advancing the archiving of diffraction images. This collection highlights efforts in preserving valuable crystallographic data.

Keywords:
DDDWGdata deposition

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Area of Science:

  • Crystallography
  • Data Science
  • Scientific Archiving

Background:

  • Crystallographic data is crucial for scientific advancement.
  • Effective archiving ensures data accessibility and reproducibility.
  • The International Union of Crystallography (IUCr) plays a key role in data standards.

Purpose of the Study:

  • To outline the activities of the IUCr Diffraction Data Deposition Working Group.
  • To introduce a series of articles focused on the archiving of diffraction images.
  • To promote best practices in scientific data management.

Main Methods:

  • Review of IUCr Diffraction Data Deposition Working Group initiatives.
  • Compilation and introduction of related research articles.
  • Discussion of challenges and solutions in image data archiving.

Main Results:

  • The article details the ongoing work of the IUCr group.
  • A collection of articles on diffraction image archiving is presented.
  • Key considerations for long-term data preservation are highlighted.

Conclusions:

  • The IUCr is actively working towards robust diffraction data archiving.
  • Effective archiving strategies are essential for the future of crystallography.
  • Continued collaboration is needed to ensure the integrity of scientific records.