7YJJ

Human Cytosolic 10-formyltetrahydrofolate dehydrogenase and Gossypol complex

• PDB DOI: https://doi.org/10.2210/pdb7YJJ/pdb
• EM Map EMD-33872: EMDB EMDataResource

• Classification: OXIDOREDUCTASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-07-20 Released: 2023-07-26 
• Deposition Author(s): Han, C.W., Lee, H.N., Jeong, M.S., Jang, S.B.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 6.31 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural identification and comprehension of human ALDH1L1-Gossypol complex.

Han, C.W., Lee, H.N., Jeong, M.S., Kim, H.Y., Jang, S.B.

(2024) Biochem Biophys Res Commun 726: 150306-150306

• PubMed: 38917634 
• DOI: https://doi.org/10.1016/j.bbrc.2024.150306
• Primary Citation of Related Structures:  
  7YJJ


• PubMed Abstract: 
  

  The folate metabolism enzyme ALDH1L1 catalyzed 10-formyltetrahydrofolate to tetrahydrofolate and CO ₂ . Non-small cell lung cancer cells (NSCLC) strongly express ALDH1L1. Gossypol binds to an allosteric site and disrupts the folate metabolism by preventing NADP ⁺ binding. The Cryo-EM structures of tetrameric C-terminal aldehyde dehydrogenase human ALDH1L1 complex with gossypol were examined. Gossypol-bound ALDH1L1 interfered with NADP ⁺ by shifting the allosteric site of the structural conformation, producing a closed-form NADP ⁺ binding site. In addition, the inhibition activity of ALDH1L1 was targeted with gossypol in NSCLC. The gossypol treatment had anti-cancer effects on NSCLC by blocking NADPH and ATP production. These findings emphasize the structure characterizing ALDH1L1 with gossypol.

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Organizational Affiliation: 

Institute of Systems Biology, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan, 46241, Republic of Korea.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 218.28 kDa 
• Atom Count: 15,318 
• Modelled Residue Count: 1,992 
• Deposited Residue Count: 1,992 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cytosolic 10-formyltetrahydrofolate dehydrogenase	A [auth B], B [auth C], C [auth D], D [auth E]	498	Homo sapiens	Mutation(s): 0  Gene Names: ALDH1L1, FTHFD EC: 1.5.1.6
UniProt & NIH Common Fund Data Resources
Find proteins for O75891 (Homo sapiens) Explore O75891  Go to UniProtKB:  O75891
PHAROS:  O75891 GTEx:  ENSG00000144908

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GO3	E [auth C]	Gossypol C30 H30 O8 QBKSWRVVCFFDOT-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 6.31 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-07-26 
Deposition Author(s): Han, C.W., Lee, H.N., Jeong, M.S., Jang, S.B.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-07-26
  Type: Initial release
  
• Version 1.1: 2024-07-03
  Changes: Data collection
• Version 1.2: 2024-08-07
  Changes: Data collection, Database references