3KLT

Crystal structure of a vimentin fragment


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.331 
  • R-Value Work: 0.291 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Atomic structure of vimentin coil 2.

Nicolet, S.Herrmann, H.Aebi, U.Strelkov, S.V.

(2010) J.Struct.Biol. 170: 369-376

  • DOI: 10.1016/j.jsb.2010.02.012

  • PubMed Abstract: 
  • Intermediate filaments (IFs) are essential cytoskeletal components in metazoan cells. They assemble from elementary dimers that are built around the central alpha-helical coiled-coil rod domain representing the IF 'signature'. The rod consists of two ...

    Intermediate filaments (IFs) are essential cytoskeletal components in metazoan cells. They assemble from elementary dimers that are built around the central alpha-helical coiled-coil rod domain representing the IF 'signature'. The rod consists of two similarly-sized parts, coil 1 and coil 2, connected by a non-alpha-helical linker L12. Coil 2 is absolutely conserved in length across all IF types and was initially predicted to consist of a short coiled-coil segment 2A based on a heptad pattern of hydrophobic residues, another linker L2 and a coiled-coil segment 2B. Here we present the crystal structure of human vimentin fragment including residues 261-335 i.e. approximately the first half of coil 2. The N-terminal part of this fragment reveals a parallel alpha-helical bundle characterized by 3.5 consecutive hendecad repeats. It is immediately followed by a regular left-handed coiled coil. The distinct non-helical linker L2 is therefore not observed. Together with the previously determined crystal structure of the major part of segment 2B (Strelkov et al., 2002), we can now build a complete atomic model of the 21nm long vimentin coil 2 dimer being a relatively rigid rod.


    Organizational Affiliation

    Department of Pharmaceutical Sciences, Katholieke Universiteit Leuven, Belgium.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Vimentin
A, B, C, D
72Homo sapiensMutation(s): 0 
Gene Names: VIM
Find proteins for P08670 (Homo sapiens)
Go to Gene View: VIM
Go to UniProtKB:  P08670
Small Molecules
Ligands 7 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SM
Query on SM

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A, B, D
SAMARIUM (III) ION
Sm
DOSGOCSVHPUUIA-UHFFFAOYSA-N
 Ligand Interaction
P33
Query on P33

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A
3,6,9,12,15,18-HEXAOXAICOSANE-1,20-DIOL
HEPTAETHYLENE GLYCOL, PEG330
C14 H30 O8
XPJRQAIZZQMSCM-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

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B, C, D
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
PG4
Query on PG4

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C
TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
P6G
Query on P6G

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B
HEXAETHYLENE GLYCOL
POLYETHYLENE GLYCOL PEG400
C12 H26 O7
IIRDTKBZINWQAW-UHFFFAOYSA-N
 Ligand Interaction
PGE
Query on PGE

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D
TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
1PE
Query on 1PE

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D
PENTAETHYLENE GLYCOL
PEG400
C10 H22 O6
JLFNLZLINWHATN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.331 
  • R-Value Work: 0.291 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 63.200α = 90.00
b = 30.100β = 102.71
c = 82.980γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
SHARPphasing
MAR345dtbdata collection
PHENIXrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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