9VWW | pdb_00009vww

Crystal structure of AetF-V220I/S523A in complex with FAD and L-tryptophan

• PDB DOI: https://doi.org/10.2210/pdb9VWW/pdb

• Classification: FLAVOPROTEIN
• Organism(s): Aetokthonos hydrillicola Thurmond2011
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2025-07-17 Released: 2025-12-10 
• Deposition Author(s): Li, H., Huang, J.-W., Dai, L., Chen, C.-C., Guo, R.-T.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.32 Å
• R-Value Free: 
  0.295 (Depositor), 0.293 (DCC) 
• R-Value Work: 
  0.218 (Depositor), 0.221 (DCC) 
• R-Value Observed: 
  0.222 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of AetF-V220I/S523A in complex with FAD and L-tryptophan

Li, H., Huang, J.-W., Dai, L., Chen, C.-C., Guo, R.-T.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 78.85 kDa 
• Atom Count: 5,353 
• Modeled Residue Count: 629 
• Deposited Residue Count: 668 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AetF	A	668	Aetokthonos hydrillicola Thurmond2011	Mutation(s): 2  Gene Names: aetF, G7B40_000615
UniProt
Find proteins for A0A861B9Z9 (Aetokthonos hydrillicola Thurmond2011) Explore A0A861B9Z9  Go to UniProtKB:  A0A861B9Z9

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FAD (Subject of Investigation/LOI)	B [auth A]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N
TRP (Subject of Investigation/LOI)	C [auth A]	TRYPTOPHAN C11 H12 N2 O2 QIVBCDIJIAJPQS-VIFPVBQESA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.32 Å
• R-Value Free:  0.295 (Depositor), 0.293 (DCC) 
• R-Value Work:  0.218 (Depositor), 0.221 (DCC) 
• R-Value Observed: 0.222 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.234	α = 90
b = 75.423	β = 90
c = 143.764	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data scaling
HKL-2000	data reduction
PHASER	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-10 
Deposition Author(s): Li, H., Huang, J.-W., Dai, L., Chen, C.-C., Guo, R.-T.

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

Revision History  

• Version 1.0: 2025-12-10
  Type: Initial release