Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 36184.45 
• Atom Count: 2377 
• Residue Count: 309 
• Unique protein chains: 1

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

• DOI: 10.2210/pdb4NFN/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda


• Deposited: 2013-10-31 Released: 2014-02-05 
• Deposition Author(s): Sheriff, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.42 Å
• R-Value Free: 0.209 
• R-Value Work: 0.185 

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 F Struct Biol Commun 70: 173-181

• PubMed: 24637750 
• DOI: 10.1107/S2053230X14000144
• Primary Citation of Related Structures:  
  4NFM


• 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.

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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Tau-tubulin kinase 1	A	309	Homo sapiens	Mutation(s): 0  Gene Names: TTBK1 (BDTK, KIAA1855) EC: 2.7.11.1
Find proteins for Q5TCY1 (Homo sapiens) Go to Gene View: TTBK1 Go to UniProtKB:  Q5TCY1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
2KC	A	3-({5-[(4-amino-4-methylpiperidin-1-yl)methyl]pyrrolo[2,1-f][1,2,4]triazin-4-yl}amino)-5-bromophenol C19 H23 Br N6 O DBMRETDBROLHGL-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
2KC	IC50: 120 nM BINDINGMOAD

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.42 Å
• R-Value Free: 0.209 
• R-Value Work: 0.185 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 169.490	α = 90.00
b = 39.910	β = 105.34
c = 50.530	γ = 90.00

Software Package:

Software Name	Purpose
SCALA	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
BUSTER-TNT	refinement
AMoRE	phasing
BUSTER	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-10-31 
• Released Date: 2014-02-05 
• Deposition Author(s): Sheriff, S.

Revision History 

• Version 1.0: 2014-02-05
  Type: Initial release
• Version 1.1: 2014-04-02
  Type: Database references