2XU6

MDV1 coiled coil domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.270 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular Architecture of a Dynamin Adaptor: Implications for Assembly of Mitochondrial Fission Complexes

Koirala, S.Bui, H.T.Schubert, H.L.Eckert, D.M.Hill, C.P.Kay, M.S.Shaw, J.M.

(2010) J.Cell Biol. 191: 1127

  • DOI: 10.1083/jcb.201005046

  • PubMed Abstract: 
  • Recruitment and assembly of some dynamin-related guanosine triphosphatases depends on adaptor proteins restricted to distinct cellular membranes. The yeast Mdv1 adaptor localizes to mitochondria by binding to the membrane protein Fis1. Subsequent Mdv ...

    Recruitment and assembly of some dynamin-related guanosine triphosphatases depends on adaptor proteins restricted to distinct cellular membranes. The yeast Mdv1 adaptor localizes to mitochondria by binding to the membrane protein Fis1. Subsequent Mdv1 binding to the mitochondrial dynamin Dnm1 stimulates Dnm1 assembly into spirals, which encircle and divide the mitochondrial compartment. In this study, we report that dimeric Mdv1 is joined at its center by a 92-Å antiparallel coiled coil (CC). Modeling of the Fis1-Mdv1 complex using available crystal structures suggests that the Mdv1 CC lies parallel to the bilayer with N termini at opposite ends bound to Fis1 and C-terminal β-propeller domains (Dnm1-binding sites) extending into the cytoplasm. A CC length of appropriate length and sequence is necessary for optimal Mdv1 interaction with Fis1 and Dnm1 and is important for proper Dnm1 assembly before membrane scission. Our results provide a framework for understanding how adaptors act as scaffolds to orient and stabilize the assembly of dynamins on membranes.


    Organizational Affiliation

    Department of Biochemistry, University of Utah, Salt Lake City, UT 84112, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MDV1 COILED COIL
A, B
72Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 2 
Gene Names: MDV1 (FIS2, GAG3, NET2)
Find proteins for P47025 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P47025
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.270 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 41.380α = 90.00
b = 41.380β = 90.00
c = 227.378γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
SOLVEphasing
REFMACrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-27
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance