Annotations: 7CQN

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Gln-synt_N_2	e7cqnA2	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: Gln-synt_N_2	ECOD (1.6)
A	Gln-synt_C	e7cqnA1	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: Gln-synt_C	ECOD (1.6)
B	Gln-synt_N_2	e7cqnB1	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: Gln-synt_N_2	ECOD (1.6)
B	Gln-synt_C	e7cqnB2	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: Gln-synt_C	ECOD (1.6)
C	Gln-synt_N_2	e7cqnC2	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: Gln-synt_N_2	ECOD (1.6)
C	Gln-synt_C	e7cqnC1	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: Gln-synt_C	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00120	Glutamine synthetase, catalytic domain (Gln-synt_C)	Glutamine synthetase, catalytic domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Type III glutamate--ammonia ligase	acid-ammonia (or amide) ligase activity ammonia ligase activity glutamine synthetase activity catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding acid-ammonia (or amide) ligase activity ammonia ligase activity glutamine synthetase activity catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding cation binding ion binding metal ion binding	nitrogen cycle metabolic process metabolic process nitrogen fixation glutamine family amino acid biosynthetic process oxoacid metabolic process cellular biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process glutamine family amino acid metabolic process small molecule metabolic process glutamine metabolic process nitrogen cycle metabolic process metabolic process nitrogen fixation glutamine family amino acid biosynthetic process oxoacid metabolic process cellular biosynthetic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process glutamine family amino acid metabolic process small molecule metabolic process glutamine metabolic process small molecule biosynthetic process cellular metabolic process carboxylic acid metabolic process primary metabolic process L-amino acid biosynthetic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process cellular process glutamine biosynthetic process alpha-amino acid biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR008146	Glutamine synthetase, catalytic domain	Domain
A, B, C	IPR017536	Glutamine synthetase, type III	Family
A, B, C	IPR027303	Glutamine synthetase, glycine-rich site	Conserved Site
A, B, C	IPR014746	Glutamine synthetase/guanido kinase, catalytic domain	Homologous Superfamily
A, B, C	IPR008147	Glutamine synthetase, N-terminal domain	Domain
A, B, C	IPR036651	Glutamine synthetase, N-terminal domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.