6GW3

Structure of TKS from Cannabis sativa in complex with CoA

• PDB DOI: https://doi.org/10.2210/pdb6GW3/pdb

• Classification: LIGASE
• Organism(s): Cannabis sativa
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2018-06-21 Released: 2019-10-09 
• Deposition Author(s): Karuppiah, V., Leys, D.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.39 Å
• R-Value Free: 0.155 
• R-Value Work: 0.118 
• R-Value Observed: 0.120 

Starting Model: experimental

Literature

Structure of a PKS class III from Cannabis sativa

Kearsey, L., Karuppiah, V., Leys, D., Takano, E., Scrutton, N.S.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 186.54 kDa 
• Atom Count: 13,540 
• Modelled Residue Count: 1,528 
• Deposited Residue Count: 1,653 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3,5,7-trioxododecanoyl-CoA synthase	A, B, C	388	Cannabis sativa	Mutation(s): 0  Gene Names: OLS, CAN24, PKS-1, TKS EC: 2.3.1.206 (PDB Primary Data), 4.4.1 (UniProt)
UniProt
Find proteins for B1Q2B6 (Cannabis sativa) Explore B1Q2B6  Go to UniProtKB:  B1Q2B6

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
3,5,7-trioxododecanoyl-CoA synthase,3,5,7-trioxododecanoyl-CoA synthase	D	489	Cannabis sativa	Mutation(s): 0  Gene Names: OLS, CAN24, PKS-1, TKS EC: 2.3.1.206 (PDB Primary Data), 4.4.1 (UniProt)
UniProt
Find proteins for B1Q2B6 (Cannabis sativa) Explore B1Q2B6  Go to UniProtKB:  B1Q2B6

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
COA	E [auth A], G [auth B], I [auth C], J [auth D]	COENZYME A C21 H36 N7 O16 P3 S RGJOEKWQDUBAIZ-IBOSZNHHSA-N
PEG	F [auth A], H [auth B]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSD	A, B, C	L-PEPTIDE LINKING	C3 H7 N O4 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.39 Å
• R-Value Free: 0.155 
• R-Value Work: 0.118 
• R-Value Observed: 0.120 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 71.56	α = 90
b = 123.288	β = 109.55
c = 87.939	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-10-09 
Deposition Author(s): Karuppiah, V., Leys, D.

Revision History  

• Version 1.0: 2019-10-09
  Type: Initial release
  
• Version 1.1: 2024-01-17
  Changes: Data collection, Database references, Refinement description
• Version 1.2: 2024-10-23
  Changes: Structure summary