4RCM

Crystal structure of the Pho92 YTH domain in complex with m6A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Basis for the Discriminative Recognition of N6-Methyladenosine RNA by the Human YT521-B Homology Domain Family of Proteins.

Xu, C.Liu, K.Ahmed, H.Loppnau, P.Schapira, M.Min, J.

(2015) J.Biol.Chem. 290: 24902-24913

  • DOI: 10.1074/jbc.M115.680389
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • N(6)-Methyladenosine (m(6)A) is the most abundant internal modification in RNA and is specifically recognized by YT521-B homology (YTH) domain-containing proteins. Recently we reported that YTHDC1 prefers guanosine and disfavors adenosine at the posi ...

    N(6)-Methyladenosine (m(6)A) is the most abundant internal modification in RNA and is specifically recognized by YT521-B homology (YTH) domain-containing proteins. Recently we reported that YTHDC1 prefers guanosine and disfavors adenosine at the position preceding the m(6)A nucleotide in RNA and preferentially binds to the GG(m(6)A)C sequence. Now we systematically characterized the binding affinities of the YTH domains of three other human proteins and yeast YTH domain protein Pho92 and determined the crystal structures of the YTH domains of human YTHDF1 and yeast Pho92 in complex with a 5-mer m(6)A RNA, respectively. Our binding and structural data revealed that the YTH domain used a conserved aromatic cage to recognize m(6)A. Nevertheless, none of these YTH domains, except YTHDC1, display sequence selectivity at the position preceding the m(6)A modification. Structural comparison of these different YTH domains revealed that among those, only YTHDC1 harbors a distinctly selective binding pocket for the nucleotide preceding the m(6)A nucleotide.


    Organizational Affiliation

    From the Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7 and.,From the Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7 and xuchaor@gmail.com.,From the Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7 and the Department of Physiology, University of Toronto, Toronto, Ontario M5S 1A8 Canada jr.min@utoronto.ca.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Methylated RNA-binding protein 1
A, B
167Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PHO92 (MRB1)
Find proteins for Q06390 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q06390
Entity ID: 2
MoleculeChainsLengthOrganism
RNA (5'-R(*UP*G)-D(*(6MZ)P*CP*U)-3')D,E5synthetic construct
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
UNX
Query on UNX

Download SDF File 
Download CCD File 
A, B
UNKNOWN ATOM OR ION
X
*
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
6MZ
Query on 6MZ
D, E
RNA LINKINGC11 H16 N5 O7 PA
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.218 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 41.430α = 90.00
b = 57.171β = 103.08
c = 66.725γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
XDSdata reduction
PDB_EXTRACTdata extraction
Aimlessdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-11-19
    Type: Initial release
  • Version 1.1: 2015-09-09
    Type: Database references
  • Version 1.2: 2015-10-21
    Type: Database references