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IHMCIF: An Extension of the PDBx/mmCIF Data Standard for Integrative Structure Determination Methods.

Authors
  • Vallat, Brinda
  • Webb, Benjamin
  • Westbrook, John
  • Goddard, Thomas
  • Hanke, Christian
  • Graziadei, Andrea
  • Peisach, Ezra
  • Zalevsky, Arthur
  • Sagendorf, Jared
  • Tangmunarunkit, Hongsuda
  • Voinea, Serban
  • Sekharan, Monica
  • Yu, Jian
  • Bonvin, Alexander
  • DiMaio, Frank
  • Hummer, Gerhard
  • Meiler, Jens
  • Tajkhorshid, Emad
  • Ferrin, Thomas
  • Lawson, Catherine
  • And 15 more
Publication Date
Sep 01, 2024
Source
eScholarship - University of California
Keywords
License
Unknown
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Abstract

IHMCIF (github.com/ihmwg/IHMCIF) is a data information framework that supports archiving and disseminating macromolecular structures determined by integrative or hybrid modeling (IHM), and making them Findable, Accessible, Interoperable, and Reusable (FAIR). IHMCIF is an extension of the Protein Data Bank Exchange/macromolecular Crystallographic Information Framework (PDBx/mmCIF) that serves as the framework for the Protein Data Bank (PDB) to archive experimentally determined atomic structures of biological macromolecules and their complexes with one another and small molecule ligands (e.g., enzyme cofactors and drugs). IHMCIF serves as the foundational data standard for the PDB-Dev prototype system, developed for archiving and disseminating integrative structures. It utilizes a flexible data representation to describe integrative structures that span multiple spatiotemporal scales and structural states with definitions for restraints from a variety of experimental methods contributing to integrative structural biology. The IHMCIF extension was created with the benefit of considerable community input and recommendations gathered by the Worldwide Protein Data Bank (wwPDB) Task Force for Integrative or Hybrid Methods (wwpdb.org/task/hybrid). Herein, we describe the development of IHMCIF to support evolving methodologies and ongoing advancements in integrative structural biology. Ultimately, IHMCIF will facilitate the unification of PDB-Dev data and tools with the PDB archive so that integrative structures can be archived and disseminated through PDB.

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