3H4O | pdb_00003h4o

Crystal structure of a nitroreductase family protein (cd3355) from clostridium difficile 630 at 1.50 A resolution

• PDB DOI: https://doi.org/10.2210/pdb3H4O/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Clostridioides difficile 630
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-04-20 Released: 2009-05-19 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 
  0.167 (Depositor), 0.161 (DCC) 
• R-Value Work: 
  0.139 (Depositor) 
• R-Value Observed: 
  0.141 (Depositor) 

Literature

Crystal structure of NITROREDUCTASE FAMILY PROTEIN (YP_001089872.1) from CLOSTRIDIUM DIFFICILE 630 at 1.50 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: 23 kDa 
• Atom Count: 1,810 
• Modeled Residue Count: 172 
• Deposited Residue Count: 191 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NITROREDUCTASE FAMILY PROTEIN	A	191	Clostridioides difficile 630	Mutation(s): 0  Gene Names: CD3355, YP_001089872.1
UniProt
Find proteins for Q180K0 (Clostridioides difficile (strain 630)) Explore Q180K0  Go to UniProtKB:  Q180K0

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FMN	B [auth A]	FLAVIN MONONUCLEOTIDE C17 H21 N4 O9 P FVTCRASFADXXNN-SCRDCRAPSA-N
MRD	D [auth A]	(4R)-2-METHYLPENTANE-2,4-DIOL C6 H14 O2 SVTBMSDMJJWYQN-RXMQYKEDSA-N
MPD	C [auth A]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-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: 1.50 Å
• R-Value Free:  0.167 (Depositor), 0.161 (DCC) 
• R-Value Work:  0.139 (Depositor) 
• R-Value Observed: 0.141 (Depositor) 

Diffraction Data: https://doi.org/10.18430/M33H4O

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 77.897	α = 90
b = 63.487	β = 131.11
c = 55.465	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SOLVE	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-05-19 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2009-05-19
  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: 2023-02-01
  Changes: Database references, Derived calculations
• Version 1.5: 2024-11-20
  Changes: Data collection, Structure summary