3LLL

Crystal structure of mouse pacsin2 F-BAR domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.258 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

A hinge in the distal end of the PACSIN 2 F-BAR domain may contribute to membrane-curvature sensing.

Plomann, M.Wittmann, J.G.Rudolph, M.G.

(2010) J Mol Biol 400: 129-136

  • DOI: 10.1016/j.jmb.2010.05.008
  • Primary Citation of Related Structures:  
    3LLL

  • PubMed Abstract: 
  • The protein kinase C and casein kinase 2 substrates in neurons (PACSINs) represent a subfamily of membrane-binding proteins characterized by an amino-terminal Bin-Amphiphysin-Rvs (F-BAR) domain. PACSINs link membrane trafficking with actin dynamics and regulate the localization of distinct cargo molecules ...

    The protein kinase C and casein kinase 2 substrates in neurons (PACSINs) represent a subfamily of membrane-binding proteins characterized by an amino-terminal Bin-Amphiphysin-Rvs (F-BAR) domain. PACSINs link membrane trafficking with actin dynamics and regulate the localization of distinct cargo molecules. The F-BAR domain forms a dimer essential for lipid binding. We have obtained crystals of authentic murine PACSIN 2 that contain an ordered F-BAR domain, indicating that additional domains are flexibly connected to F-BAR. The structure shares similarity to other BAR domains and exhibits special features unique to PACSINs. These include the uneven distribution of charged residues on the concave molecular surface and a so-called wedge loop that is driven into the membrane upon binding of PACSIN. The murine PACSIN 2 F-BAR domain requires dimerization for sensing of curved membranes, and the present structure also provides a mechanism for higher-order oligomer formation. Importantly, comparison of murine with human and Drosophila PACSIN 2 F-BAR domains reveals stark differences in the orientation of distal helical segments leading to a wider crescent shape of murine PACSIN 2. We define hinge residues for these movements that may help PACSINs sense and concomitantly reinforce membrane curvature.


    Organizational Affiliation

    Institute for Biochemistry II and Center for Molecular Medicine Cologne (CMMC), University of Cologne, D-50931 Cologne, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein kinase C and casein kinase substrate in neurons protein 2A, B287Mus musculusMutation(s): 0 
Gene Names: Pacsin2
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9WVE8 (Mus musculus)
Explore Q9WVE8 
Go to UniProtKB:  Q9WVE8
IMPC:  MGI:1345153
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.297 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.258 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 104.39α = 90
b = 106.4β = 90
c = 125γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
PHASERphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

  • Deposited Date: 2010-01-29 
  • Released Date: 2010-05-26 
  • Deposition Author(s): Rudolph, M.G.

Revision History  (Full details and data files)

  • Version 1.0: 2010-05-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance