2XQN

Complex of the 2nd and 3rd LIM domains of TES with the EVH1 DOMAIN of MENA and the N-Terminal domain of actin-like protein Arp7A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.62 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Molecular recognition of the Tes LIM2-3 domains by the actin-related protein Arp7A.

Boeda, B.Knowles, P.P.Briggs, D.C.Murray-Rust, J.Soriano, E.Garvalov, B.K.McDonald, N.Q.Way, M.

(2011) J. Biol. Chem. 286: 11543-11554

  • DOI: 10.1074/jbc.M110.171264

  • PubMed Abstract: 
  • Actin-related proteins (Arps) are a highly conserved family of proteins that have extensive sequence and structural similarity to actin. All characterized Arps are components of large multimeric complexes associated with chromatin or the cytoskeleton ...

    Actin-related proteins (Arps) are a highly conserved family of proteins that have extensive sequence and structural similarity to actin. All characterized Arps are components of large multimeric complexes associated with chromatin or the cytoskeleton. In addition, the human genome encodes five conserved but largely uncharacterized "orphan" Arps, which appear to be mostly testis-specific. Here we show that Arp7A, which has 43% sequence identity with β-actin, forms a complex with the cytoskeletal proteins Tes and Mena in the subacrosomal layer of round spermatids. The N-terminal 65-residue extension to the actin-like fold of Arp7A interacts directly with Tes. The crystal structure of the 1-65(Arp7A)·LIM2-3(Tes)·EVH1(Mena) complex reveals that residues 28-49 of Arp7A contact the LIM2-3 domains of Tes. Two alanine residues from Arp7A that occupy equivalent apolar pockets in both LIM domains as well as an intervening GPAK linker that binds the LIM2-3 junction are critical for the Arp7A-Tes interaction. Equivalent occupied apolar pockets are also seen in the tandem LIM domain structures of LMO4 and Lhx3 bound to unrelated ligands. Our results indicate that apolar pocket interactions are a common feature of tandem LIM domain interactions, but ligand specificity is principally determined by the linker sequence.


    Organizational Affiliation

    Cell Motility Laboratory, Cancer Research UK, London Research Institute, London, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ACTIN-LIKE PROTEIN 7A
A
65Homo sapiensMutation(s): 0 
Gene Names: ACTL7A
Find proteins for Q9Y615 (Homo sapiens)
Go to Gene View: ACTL7A
Go to UniProtKB:  Q9Y615
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ENABLED HOMOLOG
M
119Homo sapiensMutation(s): 0 
Gene Names: ENAH (MENA)
Find proteins for Q8N8S7 (Homo sapiens)
Go to Gene View: ENAH
Go to UniProtKB:  Q8N8S7
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
TESTIN
T
126Homo sapiensMutation(s): 0 
Gene Names: TES
Find proteins for Q9UGI8 (Homo sapiens)
Go to Gene View: TES
Go to UniProtKB:  Q9UGI8
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
T
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.62 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.215 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 37.829α = 90.00
b = 86.791β = 90.00
c = 115.266γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
REFMACrefinement
MOLREPphasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-01-26
    Type: Initial release
  • Version 1.1: 2011-08-24
    Type: Database references, Other, Structure summary, Version format compliance
  • Version 1.2: 2017-06-28
    Type: Data collection
  • Version 1.3: 2018-02-28
    Type: Database references, Structure summary