8CG5

The ACP crosslinked to the KS of the cercosporin fungal non-reducing polyketide synthase (NR-PKS) CTB1 (SAT-KS:ACP-MAT)

• PDB DOI: https://doi.org/10.2210/pdb8CG5/pdb
• EM Map EMD-16631: EMDB EMDataResource

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Cercospora nicotianae
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2023-02-03 Released: 2024-02-21 
• Deposition Author(s): Munoz-Hernandez, H., Tittes, Y.U., Maier, T.
• Funding Organization(s): European Commission, Swiss National Science Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

CryoEM structure of ACP crosslinked to KS of the cercosporin fungal non-reducing polyketide synthase (NR-PKS) CTB1 (SAT-KS:ACP-MAT) at 2.7 Angstroms resolution

Munoz-Hernandez, H., Maier, T.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 290.8 kDa 
• Atom Count: 20,016 
• Modelled Residue Count: 2,640 
• Deposited Residue Count: 2,696 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Non-reducing polyketide synthase CTB1	A, B	1,304	Cercospora nicotianae	Mutation(s): 3  Gene Names: CTB1 EC: 2.3.1
UniProt
Find proteins for Q6DQW3 (Cercospora nicotianae) Explore Q6DQW3  Go to UniProtKB:  Q6DQW3

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Acyl carrier protein (ACP) of Non-reducing polyketide synthase CTB1	C	88	Cercospora nicotianae	Mutation(s): 0  Gene Names: CTB1 EC: 2.3.1
UniProt
Find proteins for Q6DQW3 (Cercospora nicotianae) Explore Q6DQW3  Go to UniProtKB:  Q6DQW3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
42X (Subject of Investigation/LOI)	D [auth C]	N~3~-[(2R)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-N-[2-(propanoylamino)ethyl]-beta-alaninamide C14 H28 N3 O8 P IEZRALNUCGHOKF-LBPRGKRZSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-02-21 
Deposition Author(s): Munoz-Hernandez, H., Tittes, Y.U., Maier, T.

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Funding Organization	Location	Grant Number
European Commission	European Union	ID: 845941
Swiss National Science Foundation	Switzerland	--

Revision History  

• Version 1.0: 2024-02-21
  Type: Initial release