The dynamin superfamily: universal membrane tubulation and fission molecules?

  title={The dynamin superfamily: universal membrane tubulation and fission molecules?},
  author={Gerrit J. K. Praefcke and Harvey T. McMahon},
  journal={Nature Reviews Molecular Cell Biology},
Dynamins are large GTPases that belong to a protein superfamily that, in eukaryotic cells, includes classical dynamins, dynamin-like proteins, OPA1, Mx proteins, mitofusins and guanylate-binding proteins/atlastins. They are involved in many processes including budding of transport vesicles, division of organelles, cytokinesis and pathogen resistance. With sequenced genomes from Homo sapiens, Drosophila melanogaster, Caenorhabditis elegans, yeast species and Arabidopsis thaliana, we now have a… 
Dynamin Superfamily GTPases: Methods and Protocols
This chapter describes the subcloning, purification, and preliminary characterization of the budding yeast mitochondrial dynamin, DNM1, from Saccharomyces cerevisiae, which is the first mitochondrial dynamins isolated from native sources.
Structure and function of bacterial dynamin-like proteins
Current knowledge about bacterial dynamins is summarized and structural and functional properties in comparison to their eukaryotic counterparts are discussed.
Oligomerization of dynamin superfamily proteins in health and disease.
Bacterial dynamin-like proteins reveal mechanism for membrane fusion
The group of Harry Low report now on the structure of a DLP pair from Campylobacter jejuni, allowing detailed insight into the assembly mechanism and membrane tethering activity.
Dynamin architecture--from monomer to polymer.
Regulation of dynamin family proteins by post-translational modifications
Major post-translational modifications along with their roles in the mechanism of dynamin functions and implications in various cellular processes are discussed.
A bacterial dynamin-like protein
Structural and mechanistic insight is provided and compelling similarity is shown between a cyanobacterial and chloroplast DLP that, given the endosymbiotic ancestry of chloroplasts, questions the evolutionary origins of dynamins.
Dynamin-2 Function and Dysfunction Along the Secretory Pathway
The impact of disease-related mutations in the dynamin-2 gene have been associated to two hereditary neuromuscular disorders: Charcot–Marie–Tooth neuropathy and centronuclear myopathy are discussed.
Structural basis for mechanochemical role of Arabidopsis thaliana dynamin-related protein in membrane fission.
The assembling process and working mechanism of dynamin members in plant cell cytokinetic processes are clarified and a 40-kDa AtDRP1A variant containing the GTPase domain and C-terminal segment of GED is engineered.


The Antiviral Dynamin Family Member, MxA, Tubulates Lipids and Localizes to the Smooth Endoplasmic Reticulum*
It is established that human MxA, despite sharing only 30% homology with conventional dynamin, possesses many of these properties, including the propensity to self-assemble, an affinity for lipids, and the ability to tubulate membranes.
GTPase activity of dynamin and resulting conformation change are essential for endocytosis
It is shown that oligomerization and GTP binding alone, by dynamin, are not sufficient for endocytosis in vivo, and efficient GTP hydrolysis and an associated conformational change are also required.
Dynamic recruitment of dynamin for final mitochondrial severance in a primitive red alga
It is reported that the primitive red alga Cyanidioschyzon merolae retains only one dynamin homolog, CmDnm1, belonging to the mitochondrial division subfamily, which is probably not required for early constriction; it forms a ring or spiral when the outer mitochondrial membrane is finally severed.
Oligomerization and kinetic mechanism of the dynamin GTPase
Evidence for the oligomeric state of dynamin at high and low ionic strength conditions is reviewed and the possible mechanism by which assembly of Dynamin leads to an increase in its GTPase activity is discussed.
Dnm1p Gtpase-Mediated Mitochondrial Fission Is a Multi-Step Process Requiring the Novel Integral Membrane Component Fis1p
It is proposed that mitochondrial fission in yeast is a multi-step process, and that membrane-bound Fis1p is required for the proper assembly, membrane distribution, and function of Dnm1p-containing complexes during fission.
Three-dimensional reconstruction of dynamin in the constricted state
The structure suggests that the dense stalk and head regions rearrange when GTP is added, a rearrangement that generates a force on the underlying lipid bilayer and thereby leads to membrane constriction, indicating that dynamin is a force-generating 'contrictase'.
The dynamin A ring complex: molecular organization and nucleotide‐dependent conformational changes
Nucleotide‐dependent changes observed with the unmodified and modified protein support a mechanochemical action of dynamin, in which tightening and stretching of a helix contribute to membrane fission.