3F6Q

Crystal structure of integrin-linked kinase ankyrin repeat domain in complex with PINCH1 LIM1 domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The structural basis of integrin-linked kinase-PINCH interactions.

Chiswell, B.P.Zhang, R.Murphy, J.W.Boggon, T.J.Calderwood, D.A.

(2008) Proc Natl Acad Sci U S A 105: 20677-20682

  • DOI: https://doi.org/10.1073/pnas.0811415106
  • Primary Citation of Related Structures:  
    3F6Q

  • PubMed Abstract: 

    The heterotrimeric complex between integrin-linked kinase (ILK), PINCH, and parvin is an essential signaling platform, serving as a convergence point for integrin and growth-factor signaling and regulating cell adhesion, spreading, and migration. We report a 1.6-A crystal structure of the ILK ankyrin repeat domain bound to the PINCH1 LIM1 domain, revealing the molecular basis of ILK-PINCH interactions and providing a structural description of this region of ILK. This structure identifies 5 ankyrin repeats in ILK, explains previous deletion mutagenesis data, permits identification of ILK and PINCH1 point mutations that disrupt the interaction, shows how zincs are coordinated by PINCH1 LIM1, and suggests that conformational flexibility and twisting between the 2 zinc fingers within the LIM1 domain may be important for ILK binding. These data provide an atomic-resolution description of a key interaction in the ILK-PINCH-parvin scaffolding complex.


  • Organizational Affiliation

    Department of Pharmacology, Yale Cancer Center and Interdepartmental Program in Vascular Biology and Transplantation, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Integrin-linked protein kinase179Homo sapiensMutation(s): 0 
Gene Names: ILKILK1ILK2
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q13418 (Homo sapiens)
Explore Q13418 
Go to UniProtKB:  Q13418
PHAROS:  Q13418
GTEx:  ENSG00000166333 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ13418
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
LIM and senescent cell antigen-like-containing domain protein 172Homo sapiensMutation(s): 0 
Gene Names: LIMS1PINCHPINCH1
UniProt & NIH Common Fund Data Resources
Find proteins for P48059 (Homo sapiens)
Explore P48059 
Go to UniProtKB:  P48059
PHAROS:  P48059
GTEx:  ENSG00000169756 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP48059
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
IOD
Query on IOD

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
F [auth A]
G [auth A]
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
O [auth A],
P [auth A],
Q [auth A],
R [auth A],
S [auth A],
W [auth B]
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
PO4
Query on PO4

Download Ideal Coordinates CCD File 
T [auth A]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
ZN
Query on ZN

Download Ideal Coordinates CCD File 
U [auth B],
V [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.004α = 78.01
b = 41.5β = 68.98
c = 46.469γ = 85.91
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
CrystalCleardata collection
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
ARP/wARPmodel building

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-12-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2023-09-06
    Changes: Data collection, Database references, Derived calculations, Refinement description