4NFN

Human tau tubulin kinase 1 (TTBK1) complexed with 3-({5-[(4-amino-4-methylpiperidin-1-yl)methyl]pyrrolo[2,1-f][1,2,4]triazin-4-yl}amino)-5-bromophenol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.42 Å
  • R-Value Free: 
    0.209 (Depositor), 0.210 (DCC) 
  • R-Value Work: 
    0.185 (Depositor), 0.180 (DCC) 
  • R-Value Observed: 
    0.186 (Depositor) 

Starting Model: experimental
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Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted 2KCClick on this verticalbar to view details

This is version 1.2 of the entry. See complete history


Literature

The structure of human tau-tubulin kinase 1 both in the apo form and in complex with an inhibitor.

Kiefer, S.E.Chang, C.J.Kimura, S.R.Gao, M.Xie, D.Zhang, Y.Zhang, G.Gill, M.B.Mastalerz, H.Thompson, L.A.Cacace, A.M.Sheriff, S.

(2014) Acta Crystallogr Sect F Struct Biol Cryst Commun 70: 173-181

  • DOI: https://doi.org/10.1107/S2053230X14000144
  • Primary Citation of Related Structures:  
    4NFM, 4NFN

  • PubMed Abstract: 

    Tau-tubulin kinase 1 (TTBK1) is a dual-specificity (serine/threonine and tyrosine) kinase belonging to the casein kinase 1 superfamily. TTBK1 is a neuron-specific kinase that regulates tau phosphorylation. Hyperphosphorylation of tau is implicated in the pathogenesis of Alzheimer's disease. Two kinase-domain constructs of TTBK1 were expressed in a baculovirus-infected insect-cell system and purified. The purified TTBK1 kinase-domain proteins were crystallized using the hanging-drop vapor-diffusion method. X-ray diffraction data were collected and the structure of TTBK1 was determined by molecular replacement both as an apo structure and in complex with a kinase inhibitor.


  • Organizational Affiliation

    Molecular Discovery Technologies, Bristol-Myers Squibb Research and Development, PO Box 4000, Princeton, NJ 08543-4000, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tau-tubulin kinase 1309Homo sapiensMutation(s): 0 
Gene Names: TTBK1BDTKKIAA1855
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q5TCY1 (Homo sapiens)
Explore Q5TCY1 
Go to UniProtKB:  Q5TCY1
PHAROS:  Q5TCY1
GTEx:  ENSG00000146216 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5TCY1
Sequence Annotations
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  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
2KC BindingDB:  4NFN IC50: min: 120, max: 2510 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.42 Å
  • R-Value Free:  0.209 (Depositor), 0.210 (DCC) 
  • R-Value Work:  0.185 (Depositor), 0.180 (DCC) 
  • R-Value Observed: 0.186 (Depositor) 
Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 169.49α = 90
b = 39.91β = 105.34
c = 50.53γ = 90
Software Package:
Software NamePurpose
BUSTER-TNTrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
SCALAdata scaling
AMoREphasing
BUSTERrefinement

Structure Validation

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Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted 2KCClick on this verticalbar to view details

Entry History 

Deposition Data

  • Released Date: 2014-02-05 
  • Deposition Author(s): Sheriff, S.

Revision History  (Full details and data files)

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