1N70

The Crystal Structure of Nitrite Reductase Mutant His287Ala from Rhodobacter Sphaeroides

• PDB DOI: https://doi.org/10.2210/pdb1N70/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Cereibacter sphaeroides
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2002-11-12 Released: 2004-09-28 
• Deposition Author(s): Guo, H., Olesen, K., Shapliegh, J., Sjolin, L.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.202 
• R-Value Work: 0.174 
• R-Value Observed: 0.174 

Literature

The Crystal Structure of Nitrite Reductase Mutant His287Ala from Rhodobacter Sphaeroides to 1.6 Resolution

Guo, H., Olesen, K., Shapliegh, J., Sjolin, L.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 3 generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 36.53 kDa 
• Atom Count: 2,879 
• Modelled Residue Count: 334 
• Deposited Residue Count: 334 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Copper-containing nitrite reductase precursor	A	334	Cereibacter sphaeroides	Mutation(s): 1  Gene Names: NIRK EC: 1.7.99.3 (PDB Primary Data), 1.7.2.1 (UniProt)
UniProt
Find proteins for Q53239 (Cereibacter sphaeroides (strain ATCC 17025 / ATH 2.4.3)) Explore Q53239  Go to UniProtKB:  Q53239

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CU	B [auth A], C [auth A]	COPPER (II) ION Cu JPVYNHNXODAKFH-UHFFFAOYSA-N
MG	D [auth A], E [auth A], F [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.202 
• R-Value Work: 0.174 
• R-Value Observed: 0.174 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 71.395	α = 90
b = 71.395	β = 90
c = 146.179	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-09-28 
Deposition Author(s): Guo, H., Olesen, K., Shapliegh, J., Sjolin, L.

Revision History  

• Version 1.0: 2004-09-28
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2018-03-07
  Changes: Data collection
• Version 1.4: 2021-10-27
  Changes: Database references, Derived calculations
• Version 1.5: 2024-02-14
  Changes: Data collection