5XKG | pdb_00005xkg

Crystal structure of T2R-TTL-CH1 complex

• PDB DOI: https://doi.org/10.2210/pdb5XKG/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Sus scrofa, Rattus norvegicus, Gallus gallus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2017-05-07 Released: 2018-04-18 
• Deposition Author(s): Wang, Y., Yang, J., Wang, T., Chen, L.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 
  0.240 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.196 (Depositor), 0.197 (DCC) 
• R-Value Observed: 
  0.198 (Depositor) 

Literature

Identification of a powerful and reversible microtubule-inhibitor with efficacy against multidrug-resistant tumors

Yan, W., Yang, J.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A2B2C1D1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 6-mer - A4B1C1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 264.7 kDa 
• Atom Count: 18,087 
• Modeled Residue Count: 2,181 
• Deposited Residue Count: 2,319 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tubulin alpha-1B chain	A, C	451	Sus scrofa	Mutation(s): 0  Gene Names: TUBA1B EC: 3.6.5
UniProt
Find proteins for Q2XVP4 (Sus scrofa) Explore Q2XVP4  Go to UniProtKB:  Q2XVP4

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Tubulin beta chain	B, D	445	Sus scrofa	Mutation(s): 0  Gene Names: TUBB2B
UniProt
Find proteins for P02554 (Sus scrofa) Explore P02554  Go to UniProtKB:  P02554

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Stathmin-4	E	143	Rattus norvegicus	Mutation(s): 0  Gene Names: Stmn4
UniProt
Find proteins for P63043 (Rattus norvegicus) Explore P63043  Go to UniProtKB:  P63043

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Tubulin tyrosine ligase	F	384	Gallus gallus	Mutation(s): 0  Gene Names: TTL

Small Molecules

Ligands 7 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GTP	G [auth A], O [auth C], R [auth D]	GUANOSINE-5'-TRIPHOSPHATE C10 H16 N5 O14 P3 XKMLYUALXHKNFT-UUOKFMHZSA-N
GDP	K [auth B]	GUANOSINE-5'-DIPHOSPHATE C10 H15 N5 O11 P2 QGWNDRXFNXRZMB-UUOKFMHZSA-N
890	N [auth B], T [auth D]	4-[(3-azanyl-4-methoxy-phenyl)-methyl-amino]chromen-2-one C17 H16 N2 O3 BSBGOXRTSLNAPO-UHFFFAOYSA-N
MES	M [auth B]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N
GOL	J [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CA	I [auth A], Q [auth C]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
MG	H [auth A], L [auth B], P [auth C], S [auth D]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free:  0.240 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.196 (Depositor), 0.197 (DCC) 
• R-Value Observed: 0.198 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 105.122	α = 90
b = 157.656	β = 90
c = 181.593	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2018-04-18 
Deposition Author(s): Wang, Y., Yang, J., Wang, T., Chen, L.

Revision History  

• Version 1.0: 2018-04-18
  Type: Initial release
  
• Version 1.1: 2024-03-27
  Changes: Data collection, Database references, Derived calculations, Refinement description