Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: LOWER ENERGY 

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This is version 1.4 of the entry. See complete history


Structural Characterization of the Lem Motif Common to Three Human Inner Nuclear Membrane Proteins

Laguri, C.Gilquin, B.Wolff, N.Romi-Lebrun, R.Courchay, K.Callebaut, I.Worman, H.J.Zinn-Justin, S.

(2001) Structure 9: 503

  • DOI: https://doi.org/10.1016/s0969-2126(01)00611-6
  • Primary Citation of Related Structures:  
    1H9E, 1H9F

  • PubMed Abstract: 

    Integral membrane proteins of the inner nuclear membrane are involved in chromatin organization and postmitotic reassembly of the nucleus. The discovery that mutations in the gene encoding emerin causes X-linked Emery-Dreifuss muscular dystrophy has enhanced interest in such proteins. A common structural domain of 50 residues, called the LEM domain, has been identified in emerin MAN1, and lamina-associated polypeptide (LAP) 2. In particular, all LAP2 isoforms share an N-terminal segment composed of such a LEM domain that is connected to a highly divergent LEM-like domain by a linker that is probably unstructured. We have determined the three-dimensional structures of the LEM and LEM-like domains of LAP2 using nuclear magnetic resonance and molecular modeling. Both domains adopt the same fold, mainly composed of two large parallel alpha helices. The structural LEM motif is found in human inner nuclear membrane proteins and in protein-protein interaction domains from bacterial multienzyme complexes. This suggests that LEM and LEM-like domains are protein-protein interaction domains. A region conserved in all LEM domains, at the surface of helix 2, could mediate interaction between LEM domains and a common protein partner.

  • Organizational Affiliation

    Département d'Ingénierie et d'Etudes des Protéines, CEA Saclay, 91191, Gif-sur-Yvette, France.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
LAMINA-ASSOCIATED POLYPEPTIDE 256Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P42166 (Homo sapiens)
Explore P42166 
Go to UniProtKB:  P42166
PHAROS:  P42166
GTEx:  ENSG00000120802 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP42166
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: LOWER ENERGY 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-06-17
    Type: Initial release
  • Version 1.1: 2011-05-07
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-06-14
    Changes: Structure summary
  • Version 1.4: 2024-05-15
    Changes: Data collection, Database references, Other