8YOX

Crystal structure of hFSP1 with 6-OH-FAD (hFSP1-6-OH-FAD)

• PDB DOI: https://doi.org/10.2210/pdb8YOX/pdb

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


• Deposited: 2024-03-14 Released: 2025-01-08 
• Deposition Author(s): Lan, H.Y., Gao, Y., Hong, T., Zhao, Z.Z., Chang, Z.H., Wang, Y.F., Wang, F.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.48 Å
• R-Value Free: 0.267 
• R-Value Work: 0.191 
• R-Value Observed: 0.195 

Starting Model: in silico

Literature

Structural insight into 6-OH-FAD-dependent activation of hFSP1 for ferroptosis suppression.

Lan, H., Gao, Y., Hong, T., Chang, Z., Zhao, Z., Wang, Y., Wang, F.

(2024) Cell Discov 10: 88-88

• PubMed: 39160155 
• DOI: https://doi.org/10.1038/s41421-024-00723-7
• Primary Citation of Related Structures:  
  8YO8, 8YOQ, 8YOX

---

Organizational Affiliation: 

Key Laboratory of Molecular Medicine and Biotherapy in the Ministry of Industry and Information Technology, Department of Biology, School of Life Sciences, Beijing Institute of Technology, Beijing, China.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 40.93 kDa 
• Atom Count: 2,843 
• Modelled Residue Count: 367 
• Deposited Residue Count: 367 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ferroptosis suppressor protein 1	A	367	Homo sapiens	Mutation(s): 0  Gene Names: AIFM2, AMID, PRG3 EC: 1.6.5
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BRQ8 (Homo sapiens) Explore Q9BRQ8  Go to UniProtKB:  Q9BRQ8
PHAROS:  Q9BRQ8 GTEx:  ENSG00000042286

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
6FA (Subject of Investigation/LOI)	B [auth A]	6-HYDROXY-FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O16 P2 BJSUUWFQAMLNKU-OKXKTURISA-N
SO4	C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.48 Å
• R-Value Free: 0.267 
• R-Value Work: 0.191 
• R-Value Observed: 0.195 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.36	α = 90
b = 60.36	β = 90
c = 194.38	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-01-08 
Deposition Author(s): Lan, H.Y., Gao, Y., Hong, T., Zhao, Z.Z., Chang, Z.H., Wang, Y.F., Wang, F.

---

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32071269
National Natural Science Foundation of China (NSFC)	China	31770827

Revision History  

• Version 1.0: 2025-01-08
  Type: Initial release