Annotations: 3O6X

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Glutamine synthetase type III N terminal domain-like	8047561	4005697	SCOP2 (2022-06-29)
A	SCOP2 Family	Glutamine synthetase type III catalytic domain-like	8104142	4007839	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	GS N-terminal domain-like	8104141	3000408	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Glutamine synthetase/guanido kinase	8104143	3000676	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Glutamine synthetase/guanido kinase	8104143	3000676	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Glutamine synthetase/guanido kinase	8104143	3000676	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Glutamine synthetase/guanido kinase	8104143	3000676	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Glutamine synthetase/guanido kinase	8104143	3000676	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Glutamine synthetase/guanido kinase	8104143	3000676	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF12437	e3o6xA2	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: PF12437	ECOD (1.6)
A	PF00120,PF18318	e3o6xA4	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: PF00120,PF18318	ECOD (1.6)
B	PF12437	e3o6xB3	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: PF12437	ECOD (1.6)
B	PF00120,PF18318	e3o6xB4	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: PF00120,PF18318	ECOD (1.6)
C	PF12437	e3o6xC3	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: PF12437	ECOD (1.6)
C	PF00120,PF18318	e3o6xC4	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: PF00120,PF18318	ECOD (1.6)
D	PF12437	e3o6xD3	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: PF12437	ECOD (1.6)
D	PF00120,PF18318	e3o6xD4	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: PF00120,PF18318	ECOD (1.6)
E	PF12437	e3o6xE3	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: PF12437	ECOD (1.6)
E	PF00120,PF18318	e3o6xE4	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: PF00120,PF18318	ECOD (1.6)
F	PF12437	e3o6xF1	A: beta barrels	X: Ribosomal protein L25-like	H: Glutamine synthetase, N-terminal domain (From Topology)	T: Glutamine synthetase, N-terminal domain	F: PF12437	ECOD (1.6)
F	PF00120,PF18318	e3o6xF2	A: a+b two layers	X: Glutamine synthetase-like	H: Glutamine synthetase/guanido kinase (From Topology)	T: Glutamine synthetase/guanido kinase	F: PF00120,PF18318	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.120.1560	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)		CATH (4.3.0)
B	1.20.120.1560	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)		CATH (4.3.0)
C	1.20.120.1560	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)		CATH (4.3.0)
D	1.20.120.1560	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)		CATH (4.3.0)
E	1.20.120.1560	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)		CATH (4.3.0)
F	1.20.120.1560	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF00120	Glutamine synthetase, catalytic domain (Gln-synt_C)	Glutamine synthetase, catalytic domain	-	Domain
A, B, C, D, E A, B, C, D, E, F	PF12437	Glutamine synthetase type III N terminal (GSIII_N)	Glutamine synthetase type III N terminal	-	Family
A, B, C, D, E A, B, C, D, E, F	PF18318	Glutamine synthetase C-terminal domain (Gln-synt_C-ter)	Glutamine synthetase C-terminal domain	This domain is found in type III glutamine synthetase present in Bacteroides fragilis. Glutamine synthetase (GS) are large oligomeric enzymes that catalyze the condensation of ammonium and glutamate to form glutamine, the principal source of nitrogen ...	This domain is found in type III glutamine synthetase present in Bacteroides fragilis. Glutamine synthetase (GS) are large oligomeric enzymes that catalyze the condensation of ammonium and glutamate to form glutamine, the principal source of nitrogen for protein and nucleic acid synthesis. This domain is located in the C-terminal end of the protein [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	Glutamine synthetase	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	glutamine family amino acid biosynthetic process oxoacid metabolic process cellular biosynthetic process organonitrogen compound 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 organic substance metabolic process organic substance biosynthetic process small molecule metabolic process glutamine metabolic process glutamine family amino acid biosynthetic process oxoacid metabolic process cellular biosynthetic process organonitrogen compound 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 organic substance metabolic process organic substance biosynthetic process small molecule metabolic process glutamine metabolic process organonitrogen compound 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 metabolic 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, D, E A, B, C, D, E, F	IPR008146	Glutamine synthetase, catalytic domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR040577	Glutamine synthetase, C-terminal	Domain
A, B, C, D, E A, B, C, D, E, F	IPR027303	Glutamine synthetase, glycine-rich site	Conserved Site
A, B, C, D, E A, B, C, D, E, F	IPR014746	Glutamine synthetase/guanido kinase, catalytic domain	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR008147	Glutamine synthetase, N-terminal domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR022147	Glutamine synthetase type III N-terminal	Domain

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 R01GM133198.