4QQG

Crystal structure of an N-terminal HTATIP fragment


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural and histone binding studies of the chromo barrel domain of TIP60.

Zhang, Y.Lei, M.Yang, X.Feng, Y.Yang, Y.Loppnau, P.Li, Y.Yang, Y.Min, J.Liu, Y.

(2018) FEBS Lett. 592: 1221-1232

  • DOI: 10.1002/1873-3468.13021

  • PubMed Abstract: 
  • Tat-interactive protein 60 consists of an N-terminal chromo barrel domain (TIP60-CB) and a C-terminal acetyltransferase domain and acetylates histone and nonhistone proteins in diverse cellular processes. While TIP60-CB is thought to recognize histon ...

    Tat-interactive protein 60 consists of an N-terminal chromo barrel domain (TIP60-CB) and a C-terminal acetyltransferase domain and acetylates histone and nonhistone proteins in diverse cellular processes. While TIP60-CB is thought to recognize histone tails, molecular details of this interaction remain unclear. Here, we attempted a quantitative analysis of the interaction between the human TIP60-CB and histone peptides, but did not observe any detectable binding by either fluorescence polarization or isothermal titration calorimetry assays. We also determined the crystal structure of the TIP60-CB alone. Analysis of the apo-structure reveals a putative peptide-binding site that might be occluded by the basic side chain of a residue in a unique β hairpin between the two N-terminal strands of the β barrel, leading to the inability of TIP60-CB to bind histones.


    Organizational Affiliation

    Department of Physiology, University of Toronto, Canada.,Graduate school, Wuhan Sports University, China.,College of Health Science, Wuhan Sports University, China.,Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China.,Structural Genomics Consortium, University of Toronto, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Histone acetyltransferase KAT5
A, B, C, D, E, F, G
81Homo sapiensMutation(s): 0 
Gene Names: KAT5 (HTATIP, TIP60)
EC: 2.3.1.48
Find proteins for Q92993 (Homo sapiens)
Go to Gene View: KAT5
Go to UniProtKB:  Q92993
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
UNX
Query on UNX

Download SDF File 
Download CCD File 
A, B, D, E, F, G
UNKNOWN ATOM OR ION
X
*
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 43.544α = 90.00
b = 59.986β = 100.65
c = 101.638γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
PDB_EXTRACTdata extraction
MOLREPphasing
XDSdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-07-09
    Type: Initial release
  • Version 1.1: 2018-04-18
    Type: Data collection, Database references
  • Version 1.2: 2018-05-02
    Type: Data collection, Database references