7FCO | pdb_00007fco

ChlB4 Halogenase

• PDB DOI: https://doi.org/10.2210/pdb7FCO/pdb

• Classification: FLAVOPROTEIN
• Organism(s): Streptomyces antibioticus
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2021-07-15 Released: 2022-03-16 
• Deposition Author(s): Saeed, A.U., Zheng, J.
• Funding Organization(s): National Natural Science Foundation of China (NSFC), Other government

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.51 Å
• R-Value Free: 
  0.285 (Depositor), 0.280 (DCC) 
• R-Value Work: 
  0.231 (Depositor), 0.230 (DCC) 
• R-Value Observed: 
  0.233 (Depositor) 

Starting Model: experimental

Literature

Crystal insight of FAD-dependent bifunctional halogenase ChlB4 in the biosynthesis of Chlorothricin

Saeed, A.U., Zheng, J.

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)

Biological Assembly Evidence: light scattering

Macromolecule Content 

• Total Structure Weight: 103.26 kDa 
• Atom Count: 6,688 
• Modeled Residue Count: 862 
• Deposited Residue Count: 898 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ChlB4	A, B	449	Streptomyces antibioticus	Mutation(s): 0
UniProt
Find proteins for Q0R4P7 (Streptomyces antibioticus) Explore Q0R4P7  Go to UniProtKB:  Q0R4P7

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FAD (Subject of Investigation/LOI)	C [auth A], E [auth B]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N
CL	D [auth A], F [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.51 Å
• R-Value Free:  0.285 (Depositor), 0.280 (DCC) 
• R-Value Work:  0.231 (Depositor), 0.230 (DCC) 
• R-Value Observed: 0.233 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 187.651	α = 90
b = 53.076	β = 90
c = 83.821	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data scaling
PDB_EXTRACT	data extraction
HKL-3000	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-03-16 
Deposition Author(s): Saeed, A.U., Zheng, J.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32070040
Other government	China	2020YFA0907900

Revision History  

• Version 1.0: 2022-03-16
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description