9KQG | pdb_00009kqg

Cryo-EM structure of CsKCS6-CsCER2 complex

• PDB DOI: https://doi.org/10.2210/pdb9KQG/pdb
• EM Map EMD-62504: EMDB EMDataResource

• Classification: PLANT PROTEIN
• Organism(s): Citrus sinensis
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2024-11-25 Released: 2025-11-19 
• Deposition Author(s): Wang, Y., Guan, Z.Y., Zhu, F., Chen, Y.J., Yin, P.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

structural basis for Synthesis of long-chain fatty acids

Wang, Y., Yin, P.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Macromolecule Content 

• Total Structure Weight: 192.19 kDa 
• Atom Count: 11,857 
• Modeled Residue Count: 1,506 
• Deposited Residue Count: 1,712 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3-ketoacyl-CoA synthase	A, B	423	Citrus sinensis	Mutation(s): 0  Gene Names: CISIN_1g011007mg EC: 2.3.1
UniProt
Find proteins for A0A067FRD2 (Citrus sinensis) Explore A0A067FRD2  Go to UniProtKB:  A0A067FRD2

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
CsCER2	C, D	433	Citrus sinensis	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
D12 (Subject of Investigation/LOI)	E [auth A], F [auth B]	DODECANE C12 H26 SNRUBQQJIBEYMU-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-11-19 
Deposition Author(s): Wang, Y., Guan, Z.Y., Zhu, F., Chen, Y.J., Yin, P.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2025-11-19
  Type: Initial release