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: 23.25 kDa 
• Atom Count: 1622 
• Modelled Residue Count: 196 
• Deposited Residue Count: 196 
• Unique protein chains: 1

1Y7Q

Mammalian SCAN domain dimer is a domain-swapped homologue of the HIV capsid C-terminal domain

• PDB DOI: 10.2210/pdb1Y7Q/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2004-12-09 Released: 2005-01-18 
• Deposition Author(s): Ivanov, D., Stone, J.R., Maki, J.L., Collins, T., Wagner, G.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with favorable non-bond energy 

Literature

Mammalian SCAN Domain Dimer Is a Domain-Swapped Homolog of the HIV Capsid C-Terminal Domain

Ivanov, D., Stone, J.R., Maki, J.L., Collins, T., Wagner, G.

(2005) Mol Cell 17: 137-143

• PubMed: 15629724 
• DOI: 10.1016/j.molcel.2004.12.015
• Primary Citation of Related Structures:  
  1Y7Q


• PubMed Abstract: 
  

Retroviral assembly is driven by multiple interactions mediated by the Gag polyprotein, the main structural component of the forming viral shell. Critical determinants of Gag oligomerization are contained within the C-terminal domain (CTD) of the capsid protein, which also harbors a conserved sequence motif, the major homology region (MHR), in the otherwise highly variable Gag. An unexpected clue about the MHR function in retroviral assembly emerges from the structure of the zinc finger-associated SCAN domain we describe here. The SCAN dimer adopts a fold almost identical to that of the retroviral capsid CTD but uses an entirely different dimerization interface caused by swapping the MHR-like element between the monomers. Mutations in retroviral capsid proteins and functional data suggest that a SCAN-like MHR-swapped CTD dimer forms during immature particle assembly. In the SCAN-like dimer, the MHR contributes the major part of the large intertwined dimer interface explaining its functional significance.

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Organizational Affiliation: 

Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Zinc finger protein 174	A, B	98	Homo sapiens	Mutation(s): 2  Gene Names: ZNF174, ZSCAN8
UniProt & NIH Common Fund Data Resources
Find proteins for Q15697 (Homo sapiens) Explore Q15697  Go to UniProtKB:  Q15697
PHAROS:  Q15697

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with favorable non-bond energy 
• OLDERADO: 1Y7Q Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2004-12-09 
• Released Date: 2005-01-18 
Deposition Author(s): Ivanov, D., Stone, J.R., Maki, J.L., Collins, T., Wagner, G.

Revision History  

• Version 1.0: 2005-01-18
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-10-20
  Changes: Database references, Derived calculations