1A7I

AMINO-TERMINAL LIM DOMAIN FROM QUAIL CYSTEINE AND GLYCINE-RICH PROTEIN, NMR, MINIMIZED AVERAGE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 15 
  • Conformers Submitted: 
  • Selection Criteria: LEAST RESTRAINT VIOLATION, MINIMUM ENERGY 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and intramodular dynamics of the amino-terminal LIM domain from quail cysteine- and glycine-rich protein CRP2.

Kontaxis, G.Konrat, R.Krautler, B.Weiskirchen, R.Bister, K.

(1998) Biochemistry 37: 7127-7134

  • DOI: 10.1021/bi973055v

  • PubMed Abstract: 
  • Members of the cysteine and glycine-rich protein (CRP) family (CRP1, CRP2, and CRP3) contain two zinc-binding LIM domains, LIM1 and LIM2, and are implicated in diverse cellular processes linked to differentiation, growth control and pathogenesis. The ...

    Members of the cysteine and glycine-rich protein (CRP) family (CRP1, CRP2, and CRP3) contain two zinc-binding LIM domains, LIM1 and LIM2, and are implicated in diverse cellular processes linked to differentiation, growth control and pathogenesis. The solution structure of an 81-amino acid recombinant peptide encompassing the amino-terminal LIM1 domain of quail CRP2 has been determined by 2D and 3D homo- and heteronuclear NMR spectroscopy. The LIM1 domain consists of two zinc binding sites of the CCHC and the CCCC type, respectively, which both contain two orthogonally arranged antiparallel beta-sheets and which are packed together by a hydrophobic core composed of residues from the zinc finger loop regions. The CCCC zinc finger is followed by a short alpha-helical stretch. The structural analysis revealed that the global fold of LIM1 closely resembles the recently determined solution structures of the carboxyl-terminal LIM2 domains of quail CRP2 and chicken CRP1, and that LIM1 and LIM2 are independently folded structural and presumably functional domains of CRP proteins. To explore the dynamical properties of CRP proteins, we have used 15N relaxation values (T1, T2, and nuclear Overhauser effect (NOE) to describe the dynamical behavior of a LIM domain. A model-free analysis revealed local variations in mobility along the backbone of the quail CRP2 LIM1 motif. Slow motions are evident in turn regions located between the various antiparallel beta-sheets or between their strands. By use of an extended motional model, fast backbone motions were detected for backbone amide NH groups of hydrophobic residues located in the core region of the LIM1 domain. These findings point to a flexible hydrophobic core in the LIM1 domain allowing residual relative mobility of the two zinc fingers, which might be important to optimize the LIM1 interface for interaction with its physiological target molecule(s) and to compensate enthalpically for the entropy loss upon binding.


    Related Citations: 
    • Suppression in Transformed Avian Fibroblasts of a Gene (Crp) Encoding a Cysteine-Rich Protein Containing Lim Domains
      Weiskirchen, R.,Bister, K.
      (1993) Gene 8: 2317


    Organizational Affiliation

    Institutes of Organic Chemistry and Biochemistry, University of Innsbruck, Austria.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
QCRP2 (LIM1)
A
81Coturnix coturnix japonicaGene Names: CSRP2
Find proteins for Q05158 (Coturnix coturnix japonica)
Go to Gene View: CSRP2
Go to UniProtKB:  Q05158
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: 15 
  • Conformers Submitted: 
  • Selection Criteria: LEAST RESTRAINT VIOLATION, MINIMUM ENERGY 
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-05-27
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance