1J2O

Structure of FLIN2, a complex containing the N-terminal LIM domain of LMO2 and ldb1-LID


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 1000 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with favorable non-bond energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for the recognition of ldb1 by the N-terminal LIM domains of LMO2 and LMO4

Deane, J.E.Mackay, J.P.Kwan, A.H.Sum, E.Y.Visvader, J.E.Matthews, J.M.

(2003) EMBO J. 22: 2224-2233

  • DOI: 10.1093/emboj/cdg196
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • LMO2 and LMO4 are members of a small family of nuclear transcriptional regulators that are important for both normal development and disease processes. LMO2 is essential for hemopoiesis and angiogenesis, and inappropriate overexpression of this prote ...

    LMO2 and LMO4 are members of a small family of nuclear transcriptional regulators that are important for both normal development and disease processes. LMO2 is essential for hemopoiesis and angiogenesis, and inappropriate overexpression of this protein leads to T-cell leukemias. LMO4 is developmentally regulated in the mammary gland and has been implicated in breast oncogenesis. Both proteins comprise two tandemly repeated LIM domains. LMO2 and LMO4 interact with the ubiquitous nuclear adaptor protein ldb1/NLI/CLIM2, which associates with the LIM domains of LMO and LIM homeodomain proteins via its LIM interaction domain (ldb1-LID). We report the solution structures of two LMO:ldb1 complexes (PDB: 1M3V and 1J2O) and show that ldb1-LID binds to the N-terminal LIM domain (LIM1) of LMO2 and LMO4 in an extended conformation, contributing a third strand to a beta-hairpin in LIM1 domains. These findings constitute the first molecular definition of LIM-mediated protein-protein interactions and suggest a mechanism by which ldb1 can bind a variety of LIM domains that share low sequence homology.


    Related Citations: 
    • Design, production and characterization of FLIN2 and FLIN4: the engineering of intramolecular ldb1:LMO complexes.
      Deane, J.E.,Visvader, J.E.,Mackay, J.P.,Matthews, J.M.
      (2001) PROTEIN ENG. 14: 493


    Organizational Affiliation

    School of Molecular and Microbial Biosciences, University of Sydney, NSW 2006, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fusion of Rhombotin-2 and LIM domain-binding protein 1
A
114Mus musculusMutation(s): 0 
Gene Names: Ldb1 (Nli), Lmo2 (Rbtn-2, Rbtn2, Rhom-2)
Find proteins for P70662 (Mus musculus)
Go to UniProtKB:  P70662
Find proteins for P25801 (Mus musculus)
Go to UniProtKB:  P25801
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 1000 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with favorable non-bond energy 
  • Olderado: 1J2O Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-05-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance