proteindiffraction

proteindiffraction provides access to high-resolution X-ray crystallography diffraction images and linked Protein Data Bank (PDB) coordinates and structure factors to support determination and analysis of protein structures, including enzyme mechanism and antibiotic-target studies.


Key Features:

  • Access to high-resolution diffraction images: Direct access to X-ray crystallography diffraction images for diverse protein structures to enable independent analyses and validation of structural data.
  • Integration with structural databases: Linked to the Protein Data Bank (PDB) to retrieve coordinates and structure factors associated with specific PDB accession numbers.
  • BaPDH complex datasets: Provides ternary and binary complex structures of Bacillus anthracis prephenate dehydrogenase (BaPDH) with NAD+ and tyrosine and isolated ACT domain dimer structures.
  • Metadata and provenance: Supplies associated metadata such as DOIs for diffraction images and datasets.
  • Source experimental data: Hosts raw diffraction images obtained from X-ray crystallography experiments for atomic structure determination.

Scientific Applications:

  • Enzyme mechanism elucidation: Enables study of the unique allosteric inhibition of BaPDH by tyrosine via the ACT domain, contrasting with competitive inhibition in other prephenate dehydrogenases.
  • Structural analysis and drug design: Supports rational inhibitor design by providing structural data on BaPDH complexes with NAD+ and tyrosine and isolated ACT domain dimers.
  • Pathogen-specific enzyme inhibition studies: Facilitates investigation of inhibition strategies for enzymes from antibiotic-resistant pathogens listed by the World Health Organization.

Methodology:

Uses diffraction images obtained from X-ray crystallography experiments for atomic structure determination and provides associated metadata such as DOIs.

Topics

Details

Added:
1/14/2020
Last Updated:
1/13/2021

Operations

Publications

Shabalin IG, Gritsunov A, Hou J, Sławek J, Miks CD, Cooper DR, Minor W, Christendat D. Structural and biochemical analysis of <i>Bacillus anthracis</i> prephenate dehydrogenase reveals an unusual mode of inhibition by tyrosine via the ACT domain. The FEBS Journal. 2019;287(11):2235-2255. doi:10.1111/febs.15150. PMID:31750992. PMCID:PMC7239764.

PMID: 31750992
Funding: - Natural Sciences and Engineering Research Council of Canada: NSERC‐DG RGPIN‐2015‐06747 - National Institute of General Medical Sciences: GM117325, GM118619 - National Institute of Allergy and Infectious Diseases: HHSN272201200026C, HHSN272201700060C