5YDR

Structure of DNMT1 RFTS domain in complex with ubiquitin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.003 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural and mechanistic insights into UHRF1-mediated DNMT1 activation in the maintenance DNA methylation.

Li, T.Wang, L.Du, Y.Xie, S.Yang, X.Lian, F.Zhou, Z.Qian, C.

(2018) Nucleic Acids Res. 46: 3218-3231

  • DOI: 10.1093/nar/gky104

  • PubMed Abstract: 
  • UHRF1 plays multiple roles in regulating DNMT1-mediated DNA methylation maintenance during DNA replication. The UHRF1 C-terminal RING finger functions as an ubiquitin E3 ligase to establish histone H3 ubiquitination at Lys18 and/or Lys23, which is su ...

    UHRF1 plays multiple roles in regulating DNMT1-mediated DNA methylation maintenance during DNA replication. The UHRF1 C-terminal RING finger functions as an ubiquitin E3 ligase to establish histone H3 ubiquitination at Lys18 and/or Lys23, which is subsequently recognized by DNMT1 to promote its localization onto replication foci. Here, we present the crystal structure of DNMT1 RFTS domain in complex with ubiquitin and highlight a unique ubiquitin binding mode for the RFTS domain. We provide evidence that UHRF1 N-terminal ubiquitin-like domain (UBL) also binds directly to DNMT1. Despite sharing a high degree of structural similarity, UHRF1 UBL and ubiquitin bind to DNMT1 in a very distinct fashion and exert different impacts on DNMT1 enzymatic activity. We further show that the UHRF1 UBL-mediated interaction between UHRF1 and DNMT1, and the binding of DNMT1 to ubiquitinated histone H3 that is catalyzed by UHRF1 RING domain are critical for the proper subnuclear localization of DNMT1 and maintenance of DNA methylation. Collectively, our study adds another layer of complexity to the regulatory mechanism of DNMT1 activation by UHRF1 and supports that individual domains of UHRF1 participate and act in concert to maintain DNA methylation patterns.


    Organizational Affiliation

    School of Biomedical Sciences, The University of Hong Kong, PokFuLam, Hong Kong.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Polyubiquitin-B
A, D
75Homo sapiensMutation(s): 0 
Gene Names: UBB
Find proteins for P0CG47 (Homo sapiens)
Go to Gene View: UBB
Go to UniProtKB:  P0CG47
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA (cytosine-5)-methyltransferase 1
B
250Homo sapiensMutation(s): 0 
Gene Names: DNMT1 (AIM, CXXC9, DNMT)
EC: 2.1.1.37
Find proteins for P26358 (Homo sapiens)
Go to Gene View: DNMT1
Go to UniProtKB:  P26358
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
ZN
Query on ZN

Download SDF File 
Download CCD File 
B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.003 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.199 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 131.760α = 90.00
b = 131.760β = 90.00
c = 61.025γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PDB_EXTRACTdata extraction
PHENIXphasing
PHENIXrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2017-09-14 
  • Released Date: 2018-02-21 
  • Deposition Author(s): Qian, C.

Funding OrganizationLocationGrant Number
Research Grants Council General Research FundHong Kong17160016

Revision History 

  • Version 1.0: 2018-02-21
    Type: Initial release
  • Version 1.1: 2018-04-18
    Type: Data collection, Database references