6CKO

Crystal structure of an AF10 fragment


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural and functional analysis of the DOT1L-AF10 complex reveals mechanistic insights into MLL-AF10-associated leukemogenesis.

Zhang, H.Zhou, B.Qin, S.Xu, J.Harding, R.Tempel, W.Nayak, V.Li, Y.Loppnau, P.Dou, Y.Min, J.

(2018) Genes Dev 32: 341-346

  • DOI: 10.1101/gad.311639.118
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The mixed-lineage leukemia (MLL)-AF10 fusion oncoprotein recruits DOT1L to the homeobox A ( HOXA ) gene cluster through its octapeptide motif leucine zipper (OM-LZ), thereby inducing and maintaining the MLL-AF10-associated leukemogenesis. Howe ...

    The mixed-lineage leukemia (MLL)-AF10 fusion oncoprotein recruits DOT1L to the homeobox A ( HOXA ) gene cluster through its octapeptide motif leucine zipper (OM-LZ), thereby inducing and maintaining the MLL-AF10-associated leukemogenesis. However, the recognition mechanism between DOT1L and MLL-AF10 is unclear. Here, we present the crystal structures of both apo AF10 OM-LZ and its complex with the coiled-coil domain of DOT1L. Disruption of the DOT1L-AF10 interface abrogates MLL-AF10-associated leukemic transformation. We further show that zinc stabilizes the DOT1L-AF10 complex and may be involved in the regulation of the HOXA gene expression. Our studies may also pave the way for the rational design of therapeutic drugs against MLL -rearranged leukemia.


    Organizational Affiliation

    Department of Physiology, University of Toronto, Toronto, Ontario M5G 1L7, Canada.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein AF-10
A, B
77Homo sapiensMutation(s): 0 
Gene Names: MLLT10AF10
Find proteins for P55197 (Homo sapiens)
Go to UniProtKB:  P55197
NIH Common Fund Data Resources
PHAROS  P55197
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Histone-lysine N-methyltransferase, H3 lysine-79 specific
C, D
50Danio rerioMutation(s): 0 
Gene Names: dot1l
EC: 2.1.1.43 (PDB Primary Data), 2.1.1.360 (UniProt)
Find proteins for F1Q4W7 (Danio rerio)
Go to UniProtKB:  F1Q4W7
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download CCD File 
A, B, C, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
UNX
Query on UNX

Download CCD File 
A, B, C, D
UNKNOWN ATOM OR ION
X
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.701α = 90
b = 122.558β = 90
c = 65.404γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
Aimlessdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
SHELXDEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-03-21
    Type: Initial release
  • Version 1.1: 2018-04-18
    Changes: Data collection, Database references