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PDBsum entry 3ng0

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protein ligands metals links
Ligase PDB id
3ng0
Jmol
Contents
Protein chain
465 a.a.
Ligands
ANP
Metals
_MN ×3
Waters ×24
PDB id:
3ng0
Name: Ligase
Title: Crystal structure of glutamine synthetase from synechocystis 6803
Structure: Glutamine synthetase. Chain: a. Synonym: glutamate--ammonia ligase. Engineered: yes
Source: Synechocystis sp.. Organism_taxid: 1148. Strain: pcc 6803. Gene: glna, slr1756. Expressed in: escherichia coli. Expression_system_taxid: 668369.
Resolution:
2.80Å     R-factor:   0.287     R-free:   0.313
Authors: L.Saelices,D.Cascio,F.J.Florencio,M.I.Muro-Pastor
Key ref: L.Saelices et al. Crystal structure of glutamine synthetase from synech sp. Pcc 6803. To be published, .
Date:
10-Jun-10     Release date:   15-Jun-11    
PROCHECK
Go to PROCHECK summary
 Headers
 References

Protein chain
Pfam   ArchSchema ?
P77961  (GLNA_SYNY3) -  Glutamine synthetase
Seq:
Struc:
473 a.a.
465 a.a.*
Key:    PfamA domain  Secondary structure
* PDB and UniProt seqs differ at 4 residue positions (black crosses)

 Enzyme reactions 
   Enzyme class: E.C.6.3.1.2  - Glutamate--ammonia ligase.
[IntEnz]   [ExPASy]   [KEGG]   [BRENDA]
      Reaction: ATP + L-glutamate + NH3 = ADP + phosphate + L-glutamine
ATP
+ L-glutamate
+ NH(3)
=
ADP
Bound ligand (Het Group name = ANP)
matches with 81.25% similarity
+ phosphate
+ L-glutamine
Molecule diagrams generated from .mol files obtained from the KEGG ftp site
 Gene Ontology (GO) functional annotation 
  GO annot!
  Cellular component     cytoplasm   1 term 
  Biological process     nitrogen compound metabolic process   3 terms 
  Biochemical function     catalytic activity     5 terms