9J6C | pdb_00009j6c

Crystal structure of an oxidoreductase mutant M4 from Streptomyces aureocirculatus

• PDB DOI: https://doi.org/10.2210/pdb9J6C/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Streptomyces aureocirculatus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-08-15 Released: 2025-09-03 
• Deposition Author(s): Li, Q., Xu, Z.F., Feng, J.H., Liu, X.T., Liu, W.D., Yao, P.Y., Wu, Q.Q., Zhu, D.M.
• 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: 
  0.241 (Depositor), 0.242 (DCC) 
• R-Value Work: 
  0.218 (Depositor), 0.227 (DCC) 
• R-Value Observed: 
  0.220 (Depositor) 

Starting Model: in silico

Literature

Crystal structure of an oxidoreductase mutant M4 from Streptomyces aureocirculatus

Li, Q., Xu, Z., Feng, J.H., Liu, W.D., Yao, P.Y., Wu, Q.Q., Zhu, D.M.

To be published.

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 PISA (software)

Macromolecule Content 

• Total Structure Weight: 64.54 kDa 
• Atom Count: 4,234 
• Modeled Residue Count: 574 
• Deposited Residue Count: 622 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
IR104M4	A, B	311	Streptomyces aureocirculatus	Mutation(s): 0
UniProt
Find proteins for A0A6L6X851 (Streptomyces typhae) Explore A0A6L6X851  Go to UniProtKB:  A0A6L6X851

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.32 Å
• R-Value Free:  0.241 (Depositor), 0.242 (DCC) 
• R-Value Work:  0.218 (Depositor), 0.227 (DCC) 
• R-Value Observed: 0.220 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 76.65	α = 90
b = 100.958	β = 112.3
c = 86.91	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-09-03 
Deposition Author(s): Li, Q., Xu, Z.F., Feng, J.H., Liu, X.T., Liu, W.D., Yao, P.Y., Wu, Q.Q., Zhu, D.M.

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

Revision History  

• Version 1.0: 2025-09-03
  Type: Initial release