2R01

Crystal structure of a putative fmn-dependent nitroreductase (ct0345) from chlorobium tepidum tls at 1.15 A resolution

• PDB DOI: https://doi.org/10.2210/pdb2R01/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Chlorobaculum tepidum TLS
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-08-17 Released: 2007-09-04 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.15 Å
• R-Value Free: 
  0.165 (Depositor), 0.170 (DCC) 
• R-Value Work: 
  0.148 (Depositor), 0.160 (DCC) 
• R-Value Observed: 
  0.149 (Depositor) 

Literature

Crystal structure of putative FMN-dependent nitroreductase (NP_661249.1) from Chlorobium tepidum TLS at 1.15 A resolution

Joint Center for Structural Genomics (JCSG)

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, light scattering

Macromolecule Content

• Total Structure Weight: 24.06 kDa 
• Atom Count: 1,837 
• Modelled Residue Count: 195 
• Deposited Residue Count: 210 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Nitroreductase family protein	A	210	Chlorobaculum tepidum TLS	Mutation(s): 0  Gene Names: NP_661249.1, CT0345
UniProt
Find proteins for Q8KFI1 (Chlorobaculum tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS)) Explore Q8KFI1  Go to UniProtKB:  Q8KFI1

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FMN	D [auth A]	FLAVIN MONONUCLEOTIDE C17 H21 N4 O9 P FVTCRASFADXXNN-SCRDCRAPSA-N
PO4	C [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
EDO	E [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CA	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.15 Å
• R-Value Free:  0.165 (Depositor), 0.170 (DCC) 
• R-Value Work:  0.148 (Depositor), 0.160 (DCC) 
• R-Value Observed: 0.149 (Depositor) 

Diffraction Data: https://doi.org/10.18430/M32R01

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.03	α = 90
b = 64.72	β = 90
c = 48.01	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
XDS	data reduction
SHARP	phasing
SHELXD	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-09-04 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2007-09-04
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-25
  Changes: Author supporting evidence, Refinement description
• Version 1.3: 2019-07-24
  Changes: Data collection, Derived calculations, Refinement description
• Version 1.4: 2023-01-25
  Changes: Database references, Derived calculations
• Version 1.5: 2024-11-20
  Changes: Data collection, Structure summary