Mouse HP1 (M31) C terminal (shadow chromo) domain

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 35 
  • Conformers Submitted: 16 
  • Selection Criteria: LEAST NOE VIOLATION ENERGY 

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This is version 1.3 of the entry. See complete history


The Structure of Mouse Hp1 Suggests a Unique Mode of Single Peptide Recognition by the Shadow Chromo Domain Dimer

Brasher, S.V.Smith, B.O.Fogh, R.H.Nietlispach, D.Thiru, A.Nielsen, P.R.Broadhurst, R.W.Ball, L.J.Murzina, N.Laue, E.D.

(2000) EMBO J 19: 1587

  • DOI: https://doi.org/10.1093/emboj/19.7.1587
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The heterochromatin protein 1 (HP1) family of proteins is involved in gene silencing via the formation of heterochromatic structures. They are composed of two related domains: an N-terminal chromo domain and a C-terminal shadow chromo domain. Present results suggest that chromo domains may function as protein interaction motifs, bringing together different proteins in multi-protein complexes and locating them in heterochromatin. We have previously determined the structure of the chromo domain from the mouse HP1beta protein, MOD1. We show here that, in contrast to the chromo domain, the shadow chromo domain is a homodimer. The intact HP1beta protein is also dimeric, where the interaction is mediated by the shadow chromo domain, with the chromo domains moving independently of each other at the end of flexible linkers. Mapping studies, with fragments of the CAF1 and TIF1beta proteins, show that an intact, dimeric, shadow chromo domain structure is required for complex formation.

  • Organizational Affiliation

    Cambridge Centre for Molecular Recognition, Department of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge CB2 1GA, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
70Mus musculusMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P83917 (Mus musculus)
Explore P83917 
Go to UniProtKB:  P83917
IMPC:  MGI:105369
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP83917
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 35 
  • Conformers Submitted: 16 
  • Selection Criteria: LEAST NOE VIOLATION ENERGY 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-04-09
    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: 2018-03-07
    Changes: Source and taxonomy