Download MendeleyThe Crystal Structure of Dynamin
Ford, M.G.J., Jenni, S., Nunnari, J.(2011) Nature 477: 561
- PubMed: 21927001
- DOI: https://doi.org/10.1038/nature10441
- Primary Citation of Related Structures:
3ZVR - PubMed 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.
Organizational Affiliation:
Department of Molecular and Cellular Biology, University of California, Davis, Davis, California 95616, USA.
