3CFS

Structural basis of the interaction of RbAp46/RbAp48 with histone H4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Basis for the Recognition of Histone H4 by the Histone-Chaperone RbAp46.

Murzina, N.V.Pei, X.Y.Zhang, W.Sparkes, M.Vicente-Garcia, J.Pratap, J.V.McLaughlin, S.H.Ben-Shahar, T.R.Verreault, A.Luisi, B.F.Laue, E.D.

(2008) Structure 16: 1077-1085

  • DOI: 10.1016/j.str.2008.05.006
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • RbAp46 and RbAp48 (pRB-associated proteins p46 and p48, also known as RBBP7 and RBBP4, respectively) are highly homologous histone chaperones that play key roles in establishing and maintaining chromatin structure. We report here the crystal structur ...

    RbAp46 and RbAp48 (pRB-associated proteins p46 and p48, also known as RBBP7 and RBBP4, respectively) are highly homologous histone chaperones that play key roles in establishing and maintaining chromatin structure. We report here the crystal structure of human RbAp46 bound to histone H4. RbAp46 folds into a seven-bladed beta propeller structure and binds histone H4 in a groove formed between an N-terminal alpha helix and an extended loop inserted into blade six. Surprisingly, histone H4 adopts a different conformation when interacting with RbAp46 than it does in either the nucleosome or in the complex with ASF1, another histone chaperone. Our structural and biochemical results suggest that when a histone H3/H4 dimer (or tetramer) binds to RbAp46 or RbAp48, helix 1 of histone H4 unfolds to interact with the histone chaperone. We discuss the implications of our findings for the assembly and function of RbAp46 and RbAp48 complexes.


    Organizational Affiliation

    Department of Biochemistry, 80 Tennis Court Road, Cambridge CB2 1GA, UK. nm@mole.bio.cam.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Histone-binding protein RBBP7
B
414Homo sapiensMutation(s): 0 
Gene Names: RBBP7 (RBAP46)
Find proteins for Q16576 (Homo sapiens)
Go to Gene View: RBBP7
Go to UniProtKB:  Q16576
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Histone H4
E
15Homo sapiensMutation(s): 0 
Gene Names: HIST1H4A, HIST1H4B, HIST1H4C, HIST1H4D, HIST1H4E, HIST1H4F, HIST1H4H, HIST1H4I, HIST1H4J, HIST1H4K, HIST1H4L, HIST2H4A, HIST2H4B, HIST4H4 (H4/A, H4FA, H4/I, H4FI, H4/G, H4FG, H4/B, H4FB, H4/J, H4FJ, H4/C, H4FC, H4/H, H4FH, H4/M, H4FM, H4/E, H4FE, H4/D, H4FD, H4/K, H4FK, H4/N, H4F2, H4FN, HIST2H4, H4/O, H4FO)
Find proteins for P62805 (Homo sapiens)
Go to UniProtKB:  P62805
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ARS
Query on ARS

Download SDF File 
Download CCD File 
B
ARSENIC
As
RBFQJDQYXXHULB-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.184 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 44.665α = 90.00
b = 85.725β = 90.00
c = 117.723γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
REFMACrefinement
DENZOdata reduction
PHASESphasing
ADSCdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-06-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2018-01-24
    Type: Structure summary