Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 generated by PISA (software)

Biological Assembly 2  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 19.12 kDa 
• Atom Count: 1210 
• Residue Count: 141 
• Unique protein chains: 2

3ZVY

PHD finger of human UHRF1 in complex with unmodified histone H3 N- terminal tail

• DOI: 10.2210/pdb3ZVY/pdb

• Classification: LIGASE/PEPTIDE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2011-07-28 Released: 2011-12-07 
• Deposition Author(s): Lallous, N., Birck, C., Mc Ewen, A.G., Legrand, P., Samama, J.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.227 
• R-Value Work: 0.181 
• R-Value Observed: 0.184 

Literature

The Phd Finger of Human Uhrf1 Reveals a New Subgroup of Unmethylated Histone H3 Tail Readers.

Lallous, N., Legrand, P., Mcewen, A.G., Ramon-Maiques, S., Samama, J.P., Birck, C.

(2011) PLoS One 6: 27599

• PubMed: 22096602 
• DOI: 10.1371/journal.pone.0027599
• Primary Citation of Related Structures:  
  3ZVY, 3ZVZ


• PubMed Abstract: 
  

The human UHRF1 protein (ubiquitin-like containing PHD and RING finger domains 1) has emerged as a potential cancer target due to its implication in cell cycle regulation, maintenance of DNA methylation after replication and heterochromatin formation. UHRF1 functions as an adaptor protein that binds to histones and recruits histone modifying enzymes, like HDAC1 or G9a, which exert their action on chromatin. In this work, we show the binding specificity of the PHD finger of human UHRF1 (huUHRF1-PHD) towards unmodified histone H3 N-terminal tail using native gel electrophoresis and isothermal titration calorimetry. We report the molecular basis of this interaction by determining the crystal structure of huUHRF1-PHD in complex with the histone H3 N-terminal tail. The structure reveals a new mode of histone recognition involving an extra conserved zinc finger preceding the conventional PHD finger region. This additional zinc finger forms part of a large surface cavity that accommodates the side chain of the histone H3 lysine K4 (H3K4) regardless of its methylation state. Mutation of Q330, which specifically interacts with H3K4, to alanine has no effect on the binding, suggesting a loose interaction between huUHRF1-PHD and H3K4. On the other hand, the recognition appears to rely on histone H3R2, which fits snugly into a groove on the protein and makes tight interactions with the conserved aspartates D334 and D337. Indeed, a mutation of the former aspartate disrupts the formation of the complex, while mutating the latter decreases the binding affinity nine-fold.

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Organizational Affiliation: 

Institut National de Santé et de Recherche Médicale U964/Centre National de Recherche Scientifique UMR 7104/Université de Strasbourg, Illkirch, France. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
E3 UBIQUITIN-PROTEIN LIGASE UHRF1	A, B	72	Homo sapiens	Mutation(s): 0  Gene Names: UHRF1, ICBP90, NP95, RNF106 EC: 6.3.2 (PDB Primary Data), 2.3.2.27 (UniProt)
Find proteins for Q96T88 (Homo sapiens) Explore Q96T88  Go to UniProtKB:  Q96T88
NIH Common Fund Data Resources
PHAROS  Q96T88 GTEx  ENSG00000276043

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
HISTONE H3.1	C, D	8	Homo sapiens	Mutation(s): 0  Gene Names:  H3C1, H3FA, HIST1H3A, H3C2, H3FL, HIST1H3B, H3C3, H3FC HIST1H3C, H3C4, H3FB, HIST1H3D, H3C6, H3FD, HIST1H3E, H3C7, H3FI, HIST1H3F, H3C8, H3FH, HIST1H3G, H3C10, H3FK, HIST1H3H, H3C11, H3FF, HIST1H3I, H3C12, H3FJ, HIST1H3J
Find proteins for P68431 (Homo sapiens) Explore P68431  Go to UniProtKB:  P68431
NIH Common Fund Data Resources
PHAROS  P68431 GTEx  ENSG00000197409GTEx  ENSG00000197153GTEx  ENSG00000278828GTEx  ENSG00000275714GTEx  ENSG00000273983GTEx  ENSG00000274750GTEx  ENSG00000275379GTEx  ENSG00000277775

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TRS	A, B	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O
ZN	A, B	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
CL	B	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.227 
• R-Value Work: 0.181 
• R-Value Observed: 0.184 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.3	α = 90
b = 42.3	β = 90
c = 182.7	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-07-28 
• Released Date: 2011-12-07 
Deposition Author(s): Lallous, N., Birck, C., Mc Ewen, A.G., Legrand, P., Samama, J.P.

Revision History 

• Version 1.0: 2011-12-07
  Type: Initial release
  
• Version 1.1: 2019-03-06
  Changes: Data collection, Experimental preparation, Other
• Version 1.2: 2019-05-08
  Changes: Data collection, Experimental preparation