4WNG

Crystal structure of the TPR domain of LGN in complex with Frmpd4/Preso1 at 2.1 Angstrom resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structural basis for the recognition of the scaffold protein Frmpd4/Preso1 by the TPR domain of the adaptor protein LGN

Takayanagi, H.Yuzawa, S.Sumimoto, H.

(2015) Acta Crystallogr.,Sect.F 71: 175-183

  • DOI: 10.1107/S2053230X14028143
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The adaptor protein LGN interacts via the N-terminal domain comprising eight tetratricopeptide-repeat (TPR) motifs with its partner proteins mInsc, NuMA, Frmpd1 and Frmpd4 in a mutually exclusive manner. Here, the crystal structure of the LGN TPR dom ...

    The adaptor protein LGN interacts via the N-terminal domain comprising eight tetratricopeptide-repeat (TPR) motifs with its partner proteins mInsc, NuMA, Frmpd1 and Frmpd4 in a mutually exclusive manner. Here, the crystal structure of the LGN TPR domain in complex with human Frmpd4 is described at 1.5 Å resolution. In the complex, the LGN-binding region of Frmpd4 (amino-acid residues 990-1011) adopts an extended structure that runs antiparallel to LGN along the concave surface of the superhelix formed by the TPR motifs. Comparison with the previously determined structures of the LGN-Frmpd1, LGN-mInsc and LGN-NuMA complexes reveals that these partner proteins interact with LGN TPR1-6 via a common core binding region with consensus sequence (E/Q)XEX4-5(E/D/Q)X1-2(K/R)X0-1(V/I). In contrast to Frmpd1, Frmpd4 makes additional contacts with LGN via regions N- and C-terminal to the core sequence. The N-terminal extension is replaced by a specific α-helix in mInsc, which drastically increases the direct contacts with LGN TPR7/8, consistent with the higher affinity of mInsc for LGN. A crystal structure of Frmpd4-bound LGN in an oxidized form is also reported, although oxidation does not appear to strongly affect the interaction with Frmpd4.


    Organizational Affiliation

    Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
G-protein-signaling modulator 2
A
407Homo sapiensMutation(s): 0 
Gene Names: GPSM2 (LGN)
Find proteins for P81274 (Homo sapiens)
Go to Gene View: GPSM2
Go to UniProtKB:  P81274
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
FERM and PDZ domain-containing protein 4
B
60Homo sapiensMutation(s): 0 
Gene Names: FRMPD4 (KIAA0316, PDZD10, PDZK10)
Find proteins for Q14CM0 (Homo sapiens)
Go to Gene View: FRMPD4
Go to UniProtKB:  Q14CM0
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.224 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 90.527α = 90.00
b = 90.527β = 90.00
c = 177.067γ = 120.00
Software Package:
Software NamePurpose
Cootmodel building
PDB_EXTRACTdata extraction
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-09-16
    Type: Initial release