5DAG

Crystal structure of PZP domain of human AF10 protein

  • Classification: PEPTIDE BINDING PROTEIN
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli

  • Deposited: 2015-08-19 Released: 2015-10-21 
  • Deposition Author(s): Chen, S., Patel, D.J.
  • Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences; National Institutes of Health/National Cancer Institute; STARR Foundation; Leukemia & Lymphoma Society; National Institutes of Health/National Institute Of Allergy and Infectious Diseases 

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The PZP Domain of AF10 Senses Unmodified H3K27 to Regulate DOT1L-Mediated Methylation of H3K79.

Chen, S.Yang, Z.Wilkinson, A.W.Deshpande, A.J.Sidoli, S.Krajewski, K.Strahl, B.D.Garcia, B.A.Armstrong, S.A.Patel, D.J.Gozani, O.

(2015) Mol.Cell 60: 319-327

  • DOI: 10.1016/j.molcel.2015.08.019
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • AF10, a DOT1L cofactor, is required for H3K79 methylation and cooperates with DOT1L in leukemogenesis. However, the molecular mechanism by which AF10 regulates DOT1L-mediated H3K79 methylation is not clear. Here we report that AF10 contains a "reader ...

    AF10, a DOT1L cofactor, is required for H3K79 methylation and cooperates with DOT1L in leukemogenesis. However, the molecular mechanism by which AF10 regulates DOT1L-mediated H3K79 methylation is not clear. Here we report that AF10 contains a "reader" domain that couples unmodified H3K27 recognition to H3K79 methylation. An AF10 region consisting of a PHD finger-Zn knuckle-PHD finger (PZP) folds into a single module that recognizes amino acids 22-27 of H3, and this interaction is abrogated by H3K27 modification. Structural studies reveal that H3 binding triggers rearrangement of the PZP module to form an H3(22-27)-accommodating channel and that the unmodified H3K27 side chain is encased in a compact hydrogen-bond acceptor-lined cage. In cells, PZP recognition of H3 is required for H3K79 dimethylation, expression of DOT1L-target genes, and proliferation of DOT1L-addicted leukemic cells. Together, our results uncover a pivotal role for H3K27-via readout by the AF10 PZP domain-in regulating the cancer-associated enzyme DOT1L.


    Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein AF-10
A
208Homo sapiensMutation(s): 0 
Gene Names: MLLT10 (AF10)
Find proteins for P55197 (Homo sapiens)
Go to Gene View: MLLT10
Go to UniProtKB:  P55197
Small Molecules
Ligands 1 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
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.190 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 51.907α = 90.00
b = 51.907β = 90.00
c = 147.727γ = 90.00
Software Package:
Software NamePurpose
Cootmodel building
PHENIXrefinement
HKL-2000data scaling
PHENIXphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2015-08-19 
  • Released Date: 2015-10-21 
  • Deposition Author(s): Chen, S., Patel, D.J.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01 GM079641
National Institutes of Health/National Cancer InstituteUnited StatesCA66996
National Institutes of Health/National Cancer InstituteUnited StatesCA176745
STARR FoundationUnited StatesI5-A554
Leukemia & Lymphoma SocietyUnited StatesLLS-SCOR 7132-08
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM110174
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesAI118891
National Institutes of Health/National Institute of General Medical SciencesUnited StatesT32 GM007276

Revision History 

  • Version 1.0: 2015-10-21
    Type: Initial release
  • Version 1.1: 2015-11-11
    Type: Database references
  • Version 1.2: 2017-09-20
    Type: Author supporting evidence, Database references, Derived calculations
  • Version 1.3: 2017-09-27
    Type: Author supporting evidence