3NBI

Crystal structure of human RMI1 N-terminus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structures of RMI1 and RMI2, Two OB-Fold Regulatory Subunits of the BLM Complex.

Wang, F.Yang, Y.Singh, T.R.Busygina, V.Guo, R.Wan, K.Wang, W.Sung, P.Meetei, A.R.Lei, M.

(2010) Structure 18: 1159-1170

  • DOI: 10.1016/j.str.2010.06.008
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Mutations in BLM, a RecQ-like helicase, are linked to the autosomal recessive cancer-prone disorder Bloom's syndrome. BLM associates with topoisomerase (Topo) IIIα, RMI1, and RMI2 to form the BLM complex that is essential for genome stability. The RM ...

    Mutations in BLM, a RecQ-like helicase, are linked to the autosomal recessive cancer-prone disorder Bloom's syndrome. BLM associates with topoisomerase (Topo) IIIα, RMI1, and RMI2 to form the BLM complex that is essential for genome stability. The RMI1-RMI2 heterodimer stimulates the dissolution of double Holliday junction into non-crossover recombinants mediated by BLM-Topo IIIα and is essential for stabilizing the BLM complex. However, the molecular basis of these functions of RMI1 and RMI2 remains unclear. Here we report the crystal structures of multiple domains of RMI1-RMI2, providing direct confirmation of the existence of three oligonucleotide/oligosaccharide binding (OB)-folds in RMI1-RMI2. Our structural and biochemical analyses revealed an unexpected insertion motif in RMI1N-OB, which is important for stimulating the dHJ dissolution. We also revealed the structural basis of the interaction between RMI1C-OB and RMI2-OB and demonstrated the functional importance of the RMI1-RMI2 interaction in genome stability maintenance.


    Organizational Affiliation

    Howard Hughes Medical Institute, University of Michigan Medical School, Ann Arbor, MI 48109, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RecQ-mediated genome instability protein 1
A
216Homo sapiensMutation(s): 0 
Gene Names: RMI1 (C9orf76)
Find proteins for Q9H9A7 (Homo sapiens)
Go to Gene View: RMI1
Go to UniProtKB:  Q9H9A7
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.222 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 57.896α = 90.00
b = 57.896β = 90.00
c = 117.475γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
SHARPphasing
HKL-2000data reduction
HKL-2000data scaling
MAR345data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-09-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-08
    Type: Refinement description