The crystal structure of dynamin

Marijn G J Ford, Simon Jenni, Jodi Nunnari

Research output: Contribution to journalArticle

180 Scopus citations

Abstract

Dynamin-related proteins (DRPs) are multi-domain GTPases that function via oligomerization and GTP-dependent conformational changes to play central roles in regulating membrane structure across phylogenetic kingdoms. How DRPs harness self-assembly and GTP-dependent conformational changes to remodel membranes is not understood. Here we present the crystal structure of an assembly-deficient mammalian endocytic DRP, dynamin 1, lacking the proline-rich domain, in its nucleotide-free state. The dynamin 1 monomer is an extended structure with the GTPase domain and bundle signalling element positioned on top of a long helical stalk with the pleckstrin homology domain flexibly attached on its opposing end. Dynamin 1 dimer and higher order dimer multimers form via interfaces located in the stalk. Analysis of these interfaces provides insight into DRP family member specificity and regulation and provides a framework for understanding the biogenesis of higher order DRP structures and the mechanism of DRP-mediated membrane scission events.

Original languageEnglish (US)
Pages (from-to)561-566
Number of pages6
JournalNature
Volume477
Issue number7366
DOIs
StatePublished - Sep 29 2011

ASJC Scopus subject areas

  • General

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    Ford, M. G. J., Jenni, S., & Nunnari, J. (2011). The crystal structure of dynamin. Nature, 477(7366), 561-566. https://doi.org/10.1038/nature10441