1HLV

CRYSTAL STRUCTURE OF CENP-B(1-129) COMPLEXED WITH THE CENP-B BOX DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the CENP-B protein-DNA complex: the DNA-binding domains of CENP-B induce kinks in the CENP-B box DNA.

Tanaka, Y.Nureki, O.Kurumizaka, H.Fukai, S.Kawaguchi, S.Ikuta, M.Iwahara, J.Okazaki, T.Yokoyama, S.

(2001) EMBO J. 20: 6612-6618

  • DOI: 10.1093/emboj/20.23.6612

  • PubMed Abstract: 
  • The human centromere protein B (CENP-B), one of the centromere components, specifically binds a 17 bp sequence (the CENP-B box), which appears in every other alpha-satellite repeat. In the present study, the crystal structure of the complex of the DN ...

    The human centromere protein B (CENP-B), one of the centromere components, specifically binds a 17 bp sequence (the CENP-B box), which appears in every other alpha-satellite repeat. In the present study, the crystal structure of the complex of the DNA-binding region (129 residues) of CENP-B and the CENP-B box DNA has been determined at 2.5 A resolution. The DNA-binding region forms two helix-turn-helix domains, which are bound to adjacent major grooves of the DNA. The DNA is kinked at the two recognition helix contact sites, and the DNA region between the kinks is straight. Among the major groove protein-bound DNAs, this 'kink-straight-kink' bend contrasts with ordinary 'round bends' (gradual bending between two protein contact sites). The larger kink (43 degrees ) is induced by a novel mechanism, 'phosphate bridging by an arginine-rich helix': the recognition helix with an arginine cluster is inserted perpendicularly into the major groove and bridges the groove through direct interactions with the phosphate groups. The overall bending angle is 59 degrees, which may be important for the centromere-specific chromatin structure.


    Organizational Affiliation

    RIKEN Genomic Sciences Center, 1-7-22 Suehiro-cho, Tsurumi, Yokohama 230-0045, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
MAJOR CENTROMERE AUTOANTIGEN B
A
131Homo sapiensMutation(s): 0 
Gene Names: CENPB
Find proteins for P07199 (Homo sapiens)
Go to Gene View: CENPB
Go to UniProtKB:  P07199
Entity ID: 1
MoleculeChainsLengthOrganism
CENP-B BOX DNAB21N/A
Entity ID: 2
MoleculeChainsLengthOrganism
CENP-B BOX DNAC21N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.222 
  • Space Group: P 31 1 2
Unit Cell:
Length (Å)Angle (°)
a = 83.374α = 90.00
b = 83.374β = 90.00
c = 139.021γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
DENZOdata reduction
MLPHAREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-01-11
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance