3NG0

Crystal Structure of Glutamine Synthetase from Synechocystis sp. PCC 6803

• PDB DOI: https://doi.org/10.2210/pdb3NG0/pdb

• Classification: LIGASE
• Organism(s): Synechocystis sp. PCC 6803
• Expression System: Escherichia coli DH5[alpha]
• Mutation(s): Yes 


• Deposited: 2010-06-10 Released: 2011-06-15 
• Deposition Author(s): Saelices, L., Cascio, D., Florencio, F.J., Muro-Pastor, M.I.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.313 
• R-Value Work: 0.285 
• R-Value Observed: 0.287 

Literature

Crystal Structure of Glutamine Synthetase from Synechocystis sp. PCC 6803

Saelices, L., Cascio, D., Florencio, F.J., Muro-Pastor, M.I.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D6  (Explore in 3D)
Global Stoichiometry: Homo 12-mer - A12 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 53.72 kDa 
• Atom Count: 3,732 
• Modelled Residue Count: 465 
• Deposited Residue Count: 473 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamine synthetase	A	473	Synechocystis sp. PCC 6803	Mutation(s): 4  Gene Names: glnA, slr1756 EC: 6.3.1.2
UniProt
Find proteins for P77961 (Synechocystis sp. (strain PCC 6803 / Kazusa)) Explore P77961  Go to UniProtKB:  P77961

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ANP	B [auth A]	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER C10 H17 N6 O12 P3 PVKSNHVPLWYQGJ-KQYNXXCUSA-N
MN	C [auth A], D [auth A], E [auth A]	MANGANESE (II) ION Mn WAEMQWOKJMHJLA-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.313 
• R-Value Work: 0.285 
• R-Value Observed: 0.287 
• Space Group: P 6 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 132.016	α = 90
b = 132.016	β = 90
c = 202.13	γ = 120

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
PHASER	phasing
BUSTER-TNT	refinement
PDB_EXTRACT	data extraction
BUSTER	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-06-15 
Deposition Author(s): Saelices, L., Cascio, D., Florencio, F.J., Muro-Pastor, M.I.

Revision History  

• Version 1.0: 2011-06-15
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2024-02-21
  Changes: Data collection, Database references, Derived calculations