8XKZ | pdb_00008xkz

Core region of the citrate-induced human acetyl-CoA carboxylase 1 filament (ACC1-citrate)

• PDB DOI: https://doi.org/10.2210/pdb8XKZ/pdb
• EM Map EMD-38432: EMDB EMDataResource

• Classification: LIGASE
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2023-12-25 Released: 2024-10-23 
• Deposition Author(s): Zhou, F.Y., Zhang, Y.Y., Zhou, Q., Hu, Q.
• Funding Organization(s): Not funded

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.55 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Filament structures unveil the dynamic organization of human acetyl-CoA carboxylase.

Zhou, F., Zhang, Y., Zhu, Y., Zhou, Q., Shi, Y., Hu, Q.

(2024) Sci Adv 10: eado4880-eado4880

• PubMed: 39383219 
• DOI: https://doi.org/10.1126/sciadv.ado4880
• Primary Citation Related Structures: 
  8XKZ, 8XL0, 8XL1, 8XL2


• PubMed Abstract: 
  

  Human acetyl-coenzyme A (CoA) carboxylases (ACCs) catalyze the carboxylation of acetyl-CoA, which is the rate-limiting step in fatty acid synthesis. The molecular mechanism underlying the dynamic organization of ACCs is largely unknown. Here, we determined the cryo-electron microscopy (EM) structure of human ACC1 in its inactive state, which forms a unique filament structure and is in complex with acetyl-CoA. We also determined the cryo-EM structure of human ACC1 activated by dephosphorylation and citrate treatment, at a resolution of 2.55 Å. Notably, the covalently linked biotin binds to a site that is distant from the acetyl-CoA binding site when acetyl-CoA is absent, suggesting a potential coordination between biotin binding and acetyl-CoA binding. These findings provide insights into the structural dynamics and regulatory mechanisms of human ACCs.

---

Organizational Affiliation: 
• College of Life Sciences, Zhejiang University, Hangzhou 310058, China.
School of Life Sciences, Westlake University, Hangzhou 310024, China.
Zhejiang Key Laboratory of Structural Biology, School of Life Sciences, Westlake University, Hangzhou 310024, China.
Westlake AI Therapeutics Lab, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310058, China.

Biological Assembly 1  

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

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

Macromolecule Content 

• Total Structure Weight: 509.38 kDa 
• Atom Count: 34,270 
• Modeled Residue Count: 4,292 
• Deposited Residue Count: 4,480 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetyl-CoA carboxylase 1	A [auth C], B [auth D]	2,240	Homo sapiens	Mutation(s): 0  Gene Names: ACACA, ACAC, ACC1, ACCA EC: 6.4.1.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q13085 (Homo sapiens) Explore Q13085  Go to UniProtKB:  Q13085
PHAROS:  Q13085 GTEx:  ENSG00000278540

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BTN (Subject of Investigation/LOI)	C, D	BIOTIN C10 H16 N2 O3 S YBJHBAHKTGYVGT-ZKWXMUAHSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.55 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2024-10-23 
Deposition Author(s): Zhou, F.Y., Zhang, Y.Y., Zhou, Q., Hu, Q.

---

Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2024-10-23
  Type: Initial release
  
• Version 1.1: 2024-11-06
  Changes: Data collection