2KDD

Solution structure of the conserved C-terminal dimerization domain of Borealin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Phosphorylation of a borealin dimerization domain is required for proper chromosome segregation.

Bourhis, E.Lingel, A.Phung, Q.Fairbrother, W.J.Cochran, A.G.

(2009) Biochemistry 48: 6783-6793

  • DOI: 10.1021/bi900530v
  • Primary Citation of Related Structures:  
    2KDD

  • PubMed Abstract: 
  • The chromosomal passenger complex (CPC) has been identified as a master regulator of mitosis. In particular, proper chromosome segregation and cytokinesis depend on the correct localization and function of the CPC. Within the complex, the kinase Aurora B associates with Incenp, Survivin, and Borealin ...

    The chromosomal passenger complex (CPC) has been identified as a master regulator of mitosis. In particular, proper chromosome segregation and cytokinesis depend on the correct localization and function of the CPC. Within the complex, the kinase Aurora B associates with Incenp, Survivin, and Borealin. The stoichiometry of the complex as well as a complete understanding of how these four components interact with each other remains to be elucidated. Here, we identify a new domain of Borealin. We determined its structure using NMR spectroscopy and discovered a novel dimerization motif. Interestingly, we found that substitutions at Borealin T230, recently identified as an Mps1 phosphorylation site, can modulate the dimerization state of Borealin. Mutation of this single residue to alanine or valine impairs Aurora B activity during mitosis and causes chromosome segregation defects. This study reveals that Mps1 regulates the CPC through a novel Borealin domain.


    Organizational Affiliation

    Department of Protein Engineering, Genentech, Inc., 1 DNA Way, South San Francisco,California 94080, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BorealinA, B76Homo sapiensMutation(s): 0 
Gene Names: CDCA8PESCRG3
UniProt & NIH Common Fund Data Resources
Find proteins for Q53HL2 (Homo sapiens)
Explore Q53HL2 
Go to UniProtKB:  Q53HL2
PHAROS:  Q53HL2
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2KDD Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-06-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2020-02-19
    Changes: Data collection, Database references, Derived calculations, Other