2RRD

Structure of HRDC domain from human Bloom syndrome protein, BLM


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Solution structure of the HRDC domain of human Bloom syndrome protein BLM

Sato, A.Mishima, M.Nagai, A.Kim, S.Y.Ito, Y.Hakoshima, T.Jee, J.G.Kitano, K.

(2010) J Biochem 148: 517-525

  • DOI: 10.1093/jb/mvq097
  • Primary Citation of Related Structures:  
    2RRD

  • PubMed Abstract: 
  • Bloom syndrome is a rare genetic disorder characterized by severe growth retardation and cancer predisposition. The disease is caused by a loss of function of the Bloom syndrome protein (BLM), a member of the RecQ family of DNA helicases. Here we rep ...

    Bloom syndrome is a rare genetic disorder characterized by severe growth retardation and cancer predisposition. The disease is caused by a loss of function of the Bloom syndrome protein (BLM), a member of the RecQ family of DNA helicases. Here we report on the first 3D structure of a BLM fragment, a solution structure of the C-terminal helicase-and-ribonuclease D-C-terminal (HRDC) domain from human BLM. The structure reveals unique features of BLM HRDC that are distinct from the HRDC domain of Werner syndrome protein. In particular, BLM HRDC retains many acidic residues exposed to the solvent, which makes the domain surface extensively electronegative. Consistent with this, fluorescence polarization assays showed an inability of isolated BLM HRDC to interact with DNA substrates. Analyses employing ultracentrifugation, gel-filtration, CD spectroscopy and dynamic light scattering showed that the BLM HRDC domain exists as a stable monomer in solution. The results show that BLM HRDC is a compact, robust and acidic motif which may play a distinct role apart from DNA binding.


    Organizational Affiliation

    Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, Japan.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HRDC domain from Bloom syndrome proteinA101Homo sapiensMutation(s): 0 
Gene Names: BLMRECQ2RECQL3
EC: 3.6.4.12
Find proteins for P54132 (Homo sapiens)
Explore P54132 
Go to UniProtKB:  P54132
NIH Common Fund Data Resources
PHAROS  P54132
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2RRD Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-09-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance