5ZNP

Crystal structure of PtSHL in complex with an H3K4me3 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.252 

Starting Models: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Dual recognition of H3K4me3 and H3K27me3 by a plant histone reader SHL.

Qian, S.Lv, X.Scheid, R.N.Lu, L.Yang, Z.Chen, W.Liu, R.Boersma, M.D.Denu, J.M.Zhong, X.Du, J.

(2018) Nat Commun 9: 2425-2425

  • DOI: https://doi.org/10.1038/s41467-018-04836-y
  • Primary Citation of Related Structures:  
    5ZNP, 5ZNR

  • PubMed Abstract: 

    The ability of a cell to dynamically switch its chromatin between different functional states constitutes a key mechanism regulating gene expression. Histone mark "readers" display distinct binding specificity to different histone modifications and play critical roles in regulating chromatin states. Here, we show a plant-specific histone reader SHORT LIFE (SHL) capable of recognizing both H3K27me3 and H3K4me3 via its bromo-adjacent homology (BAH) and plant homeodomain (PHD) domains, respectively. Detailed biochemical and structural studies suggest a binding mechanism that is mutually exclusive for either H3K4me3 or H3K27me3. Furthermore, we show a genome-wide co-localization of SHL with H3K27me3 and H3K4me3, and that BAH-H3K27me3 and PHD-H3K4me3 interactions are important for SHL-mediated floral repression. Together, our study establishes BAH-PHD cassette as a dual histone methyl-lysine binding module that is distinct from others in recognizing both active and repressive histone marks.


  • Organizational Affiliation

    Laboratory of Genetics, University of Wisconsin-Madison, Madison, WI, 53706, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
SHORT LIFE family protein
A, B
216Populus trichocarpaMutation(s): 0 
Gene Names: POPTR_0004s16700gPOPTR_004G159900v3
UniProt
Find proteins for B9H0V2 (Populus trichocarpa)
Explore B9H0V2 
Go to UniProtKB:  B9H0V2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB9H0V2
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
15-mer peptide from Histone H3.2C [auth P],
D [auth Q]
15Arabidopsis thalianaMutation(s): 0 
UniProt
Find proteins for P59226 (Arabidopsis thaliana)
Explore P59226 
Go to UniProtKB:  P59226
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP59226
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.252 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.34α = 90
b = 91.909β = 90
c = 114.37γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data

  • Released Date: 2018-07-18 
  • Deposition Author(s): Lv, X., Du, J.

Funding OrganizationLocationGrant Number
Ministry of Science and Technology (China)China2016YFA0503200

Revision History  (Full details and data files)

  • Version 1.0: 2018-07-18
    Type: Initial release
  • Version 1.1: 2023-11-22
    Changes: Data collection, Database references, Derived calculations, Refinement description