Post-translational modifications in the Protein Data Bank

Lucy C Schofield, Jordan S Dialpuri, Garib N Murshudov, Jon Agirre

Research output: Contribution to journalArticlepeer-review

Abstract

Proteins frequently undergo covalent modification at the post-translational level, which involves the covalent attachment of chemical groups onto amino acids. This can entail the singular or multiple addition of small groups, such as phosphorylation; long-chain modifications, such as glycosylation; small proteins, such as ubiquitination; as well as the interconversion of chemical groups, such as the formation of pyroglutamic acid. These post-translational modifications (PTMs) are essential for the normal functioning of cells, as they can alter the physicochemical properties of amino acids and therefore influence enzymatic activity, protein localization, protein-protein interactions and protein stability. Despite their inherent importance, accurately depicting PTMs in experimental studies of protein structures often poses a challenge. This review highlights the role of PTMs in protein structures, as well as the prevalence of PTMs in the Protein Data Bank, directing the reader to accurately built examples suitable for use as a modelling reference.

Original languageEnglish
Article numberD80
Pages (from-to)647-660
Number of pages14
JournalActa crystallographica. Section D, Structural biology
Volume80
Issue numberPt 9
Early online date1 Sept 2024
DOIs
Publication statusPublished - 1 Sept 2024

Bibliographical note

Publisher Copyright:
© 2024 International Union of Crystallography. All rights reserved.

Keywords

  • acetylation
  • glycosylation
  • phosphorylation
  • post-translational modifications
  • Protein Data Bank

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