4QQG

Crystal structure of an N-terminal HTATIP fragment


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.228 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 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: https://doi.org/10.1002/1873-3468.13021
  • Primary Citation of Related Structures:  
    4QQG

  • 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 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

    Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histone acetyltransferase KAT5
A, B, C, D, E
A, B, C, D, E, F, G
81Homo sapiensMutation(s): 0 
Gene Names: KAT5HTATIPTIP60
EC: 2.3.1.48
UniProt & NIH Common Fund Data Resources
Find proteins for Q92993 (Homo sapiens)
Explore Q92993 
Go to UniProtKB:  Q92993
PHAROS:  Q92993
GTEx:  ENSG00000172977 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ92993
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
UNX
Query on UNX

Download Ideal Coordinates CCD File 
H [auth A]
I [auth A]
J [auth A]
K [auth A]
L [auth B]
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth B],
M [auth D],
N [auth D],
O [auth E],
P [auth F],
Q [auth F],
R [auth G],
S [auth G],
T [auth G]
UNKNOWN ATOM OR ION
X
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.544α = 90
b = 59.986β = 100.65
c = 101.638γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2014-07-09
    Type: Initial release
  • Version 1.1: 2018-04-18
    Changes: Data collection, Database references
  • Version 1.2: 2018-05-02
    Changes: Data collection, Database references
  • Version 1.3: 2023-09-20
    Changes: Data collection, Database references, Refinement description