5GK9

Crystal structure of human HBO1 in complex with BRPF2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural and mechanistic insights into regulation of HBO1 histone acetyltransferase activity by BRPF2.

Tao, Y.Zhong, C.Zhu, J.Xu, S.Ding, J.

(2017) Nucleic Acids Res. 45: 5707-5719

  • DOI: 10.1093/nar/gkx142

  • PubMed Abstract: 
  • HBO1, a member of the MYST family of histone acetyltransferases (HATs), is required for global acetylation of histone H3K14 and embryonic development. It functions as a catalytic subunit in multisubunit complexes comprising a BRPF1/2/3 or JADE1/2/3 s ...

    HBO1, a member of the MYST family of histone acetyltransferases (HATs), is required for global acetylation of histone H3K14 and embryonic development. It functions as a catalytic subunit in multisubunit complexes comprising a BRPF1/2/3 or JADE1/2/3 scaffold protein, and two accessory proteins. BRPF2 has been shown to be important for the HAT activity of HBO1 toward H3K14. Here we demonstrated that BRPF2 can regulate the HAT activity of HBO1 toward free H3 and H4, and nucleosomal H3. Particularly, a short N-terminal region of BRPF2 is sufficient for binding to HBO1 and can potentiate its activity toward H3K14. The crystal structure of the HBO1 MYST domain in complex with this segment of BRPF2 together with the biochemical and cell biological data revealed the key residues responsible for the HBO1-BRPF2 interaction. Our structural and functional data together indicate that the N-terminal region of BRPF2 plays an important role in the binding of HBO1 and a minor role in the binding of nucleosomes, which provide new mechanistic insights into the regulation of the HAT activity of HBO1 by BRPF2.


    Organizational Affiliation

    Collaborative Innovation Center for Genetics and Development, Fudan University, 2005 Songhu Road, Shanghai 200438, China.,Shanghai Science Research Center, Chinese Academy of Sciences, 333 Haike Road, Shanghai 201210, China.,School of Life Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China.,National Center for Protein Science Shanghai, State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, and University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Histone acetyltransferase KAT7
A
276Homo sapiensMutation(s): 0 
Gene Names: KAT7 (HBO1, HBOa, MYST2)
EC: 2.3.1.48
Find proteins for O95251 (Homo sapiens)
Go to Gene View: KAT7
Go to UniProtKB:  O95251
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BRD1 protein
B
50Homo sapiensMutation(s): 0 
Gene Names: BRD1 (BRL, BRPF2)
Find proteins for O95696 (Homo sapiens)
Go to Gene View: BRD1
Go to UniProtKB:  O95696
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
ACO
Query on ACO

Download SDF File 
Download CCD File 
A
ACETYL COENZYME *A
C23 H38 N7 O17 P3 S
ZSLZBFCDCINBPY-ZSJPKINUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.233 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 126.470α = 90.00
b = 39.321β = 122.10
c = 87.666γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
REFMACrefinement
HKL-2000data collection
PDB_EXTRACTdata extraction
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-03-29
    Type: Initial release
  • Version 1.1: 2017-12-06
    Type: Database references