8CQT

Flavin mononucleotide-dependent nitroreductase B.thetaiotaomicron (BT_1316)

• PDB DOI: https://doi.org/10.2210/pdb8CQT/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Bacteroides thetaiotaomicron
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-03-07 Released: 2024-03-27 
• Deposition Author(s): Blaha, J., Adam, L., Beckham, K.S.H., Chojnowski, G., Wilmanns, M., Zimmermann, M.
• Funding Organization(s): Other government

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.221 
• R-Value Work: 0.166 

Starting Model: in silico

Literature

Structural insights into the diversity of nitroreductase enzymes in Bacteroides thetaiotaomicron

Blaha, J., Adam, L., Gratzl, S., Chojnowski, G., Litz, C., Mortensen, S.A., Zimmermann, M., Beckham, K.S.H., Wilmanns, 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)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 40.77 kDa 
• Atom Count: 2,747 
• Modelled Residue Count: 327 
• Deposited Residue Count: 360 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative NADH dehydrogenase/NAD(P)H nitroreductase	A, B	180	Bacteroides thetaiotaomicron	Mutation(s): 0  Gene Names: BT_1316
UniProt
Find proteins for Q8A858 (Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50)) Explore Q8A858  Go to UniProtKB:  Q8A858

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FMN (Subject of Investigation/LOI)	C [auth A], E [auth B]	FLAVIN MONONUCLEOTIDE C17 H21 N4 O9 P FVTCRASFADXXNN-SCRDCRAPSA-N
CL	D [auth A], F [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.221 
• R-Value Work: 0.166 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.626	α = 90
b = 65.333	β = 90
c = 90.543	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-03-27 
Deposition Author(s): Blaha, J., Adam, L., Beckham, K.S.H., Chojnowski, G., Wilmanns, M., Zimmermann, M.

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Funding Organization	Location	Grant Number
Other government		--

Revision History  

• Version 1.0: 2024-03-27
  Type: Initial release