1QFH

DIMERIZATION OF GELATION FACTOR FROM DICTYOSTELIUM DISCOIDEUM: CRYSTAL STRUCTURE OF ROD DOMAINS 5 AND 6


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for dimerization of the Dictyostelium gelation factor (ABP120) rod.

McCoy, A.J.Fucini, P.Noegel, A.A.Stewart, M.

(1999) Nat.Struct.Mol.Biol. 6: 836-841

  • DOI: 10.1038/12296

  • PubMed Abstract: 
  • Gelation factor (ABP120) is one of the principal actin-cross-linking proteins of Dictyostelium discoideum. The extended molecule has an N-terminal 250-residue actin-binding domain and a rod constructed from six 100-residue repeats that have an Ig fol ...

    Gelation factor (ABP120) is one of the principal actin-cross-linking proteins of Dictyostelium discoideum. The extended molecule has an N-terminal 250-residue actin-binding domain and a rod constructed from six 100-residue repeats that have an Ig fold. The ability to dimerize is crucial to the actin cross-linking function of gelation factor and is mediated by the rod in which the two chains are arranged in an antiparallel fashion. We report the 2.2 A resolution crystal structure of rod domains 5 and 6, which shows that dimerization is mediated primarily by rod domain 6 and is the result of a double edge-to-edge extension of beta-sheets. Thus, contrary to earlier proposals, the chains of the dimeric gelation factor molecule overlap only within domain 6, and domains 1-5 do not pair with domains from the other chain. This information allows construction of a model of the gelation factor molecule and suggests how the chains in the related molecule filamin (ABP280) may interact.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Diffraction Characterization of a Dimerizing Fragment of the Rod Domain of the Dictyostelium Gelation Factor (ABP-120)
      Fucini, P.,McCoy, A.J.,Gomez-Ortiz, M.,Schleicher, M.,Noegel, A.A.,Stewart, M.
      (1997) J.Struct.Biol. 120: 192


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Hills Rd, Cambridge CB2 2QH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (GELATION FACTOR)
A, B
212Dictyostelium discoideumMutation(s): 0 
Gene Names: abpC
Find proteins for P13466 (Dictyostelium discoideum)
Go to UniProtKB:  P13466
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 43.448α = 90.00
b = 103.150β = 90.00
c = 124.361γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
CCP4data scaling
MOSFLMdata reduction
SHARPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-04-16
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance