3KV4

Structure of PHF8 in complex with histone H3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.19 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Enzymatic and structural insights for substrate specificity of a family of jumonji histone lysine demethylases.

Horton, J.R.Upadhyay, A.K.Qi, H.H.Zhang, X.Shi, Y.Cheng, X.

(2010) Nat.Struct.Mol.Biol. 17: 38-43

  • DOI: 10.1038/nsmb.1753
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Combinatorial readout of multiple covalent histone modifications is poorly understood. We provide insights into how an activating histone mark, in combination with linked repressive marks, is differentially 'read' by two related human demethylases, P ...

    Combinatorial readout of multiple covalent histone modifications is poorly understood. We provide insights into how an activating histone mark, in combination with linked repressive marks, is differentially 'read' by two related human demethylases, PHF8 and KIAA1718 (also known as JHDM1D). Both enzymes harbor a plant homeodomain (PHD) that binds Lys4-trimethylated histone 3 (H3K4me3) and a jumonji domain that demethylates either H3K9me2 or H3K27me2. The presence of H3K4me3 on the same peptide as H3K9me2 makes the doubly methylated peptide a markedly better substrate of PHF8, whereas the presence of H3K4me3 has the opposite effect, diminishing the H3K9me2 demethylase activity of KIAA1718 without adversely affecting its H3K27me2 activity. The difference in substrate specificity between the two is explained by PHF8 adopting a bent conformation, allowing each of its domains to engage its respective target, whereas KIAA1718 adopts an extended conformation, which prevents its access to H3K9me2 by its jumonji domain when its PHD engages H3K4me3.


    Organizational Affiliation

    Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PHD finger protein 8
A
447Homo sapiensMutation(s): 0 
Gene Names: PHF8 (KIAA1111, ZNF422)
EC: 1.14.11.27
Find proteins for Q9UPP1 (Homo sapiens)
Go to Gene View: PHF8
Go to UniProtKB:  Q9UPP1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Histone H3-like
B
24Homo sapiensMutation(s): 0 
Gene Names: H3F3C
Find proteins for Q6NXT2 (Homo sapiens)
Go to Gene View: H3F3C
Go to UniProtKB:  Q6NXT2
Small Molecules
Ligands 5 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
EDO
Query on EDO

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Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
FE2
Query on FE2

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Download CCD File 
A
FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
 Ligand Interaction
OGA
Query on OGA

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Download CCD File 
A
N-OXALYLGLYCINE
C4 H5 N O5
BIMZLRFONYSTPT-UHFFFAOYSA-N
 Ligand Interaction
NI
Query on NI

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Download CCD File 
A
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
M3L
Query on M3L
B
L-PEPTIDE LINKINGC9 H21 N2 O2LYS
MLY
Query on MLY
B
L-PEPTIDE LINKINGC8 H18 N2 O2LYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.19 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.217 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 73.500α = 90.00
b = 73.500β = 90.00
c = 210.800γ = 90.00
Software Package:
Software NamePurpose
HKL-3000data collection
HKL-2000data reduction
PHASERphasing
CNSrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-12-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance