Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 16.15 kDa 
• Atom Count: 1132 
• Modelled Residue Count: 140 
• Deposited Residue Count: 140 
• Unique protein chains: 1

1DZ1

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

• PDB DOI: 10.2210/pdb1DZ1/pdb

• Classification: CHROMATIN STRUCTURE
• Organism(s): Mus musculus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2000-02-11 Released: 2000-04-09 
• Deposition Author(s): 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.

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Experimental Data Snapshot

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

Literature

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

• PubMed: 10747027 
• DOI: 10.1093/emboj/19.7.1587
• Primary Citation of Related Structures:  
  1DZ1


• 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MODIFIER 1 PROTEIN	A, B	70	Mus musculus	Mutation(s): 0  Gene Names: Cbx1, Cbx
UniProt
Find proteins for P83917 (Mus musculus) Explore P83917  Go to UniProtKB:  P83917

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 35 
• Conformers Submitted: 16 
• Selection Criteria: LEAST NOE VIOLATION ENERGY 
• OLDERADO: 1DZ1 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-02-11 
• Released Date: 2000-04-09 
Deposition Author(s): 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.

Revision History  

• 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