2J9I | pdb_00002j9i

Lengsin is a survivor of an ancient family of class I glutamine synthetases in eukaryotes that has undergone evolutionary re- engineering for a tissue-specific role in the vertebrate eye lens.

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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	e2j9iA4	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	e2j9iA3	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	e2j9iC2	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	e2j9iC1	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)
E	Gln-synt_N_2	e2j9iE2	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)
E	Gln-synt_C	e2j9iE1	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)
F	Gln-synt_N_2	e2j9iF2	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)
F	Gln-synt_C	e2j9iF1	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)
L	Gln-synt_N_2	e2j9iL2	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)
L	Gln-synt_C	e2j9iL1	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)
K	Gln-synt_N_2	e2j9iK2	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)
K	Gln-synt_C	e2j9iK1	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)
J	Gln-synt_N_2	e2j9iJ2	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)
J	Gln-synt_C	e2j9iJ1	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)
I	Gln-synt_N_2	e2j9iI2	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)
I	Gln-synt_C	e2j9iI1	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)
H	Gln-synt_N_2	e2j9iH2	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)
H	Gln-synt_C	e2j9iH1	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)
G	Gln-synt_N_2	e2j9iG2	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)
G	Gln-synt_C	e2j9iG1	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)
D	Gln-synt_N_2	e2j9iD2	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)
D	Gln-synt_C	e2j9iD1	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	e2j9iB2	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	e2j9iB1	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, D, E A, B, C, D, E, F, G, H, I, J, K, L	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, D, E A, B, C, D, E, F, G, H, I, J, K, L	GLUTAMATE-AMMONIA LIGASE DOMAIN-CONTAINING PROTEIN 1	acid-ammonia (or amide) ligase activity ammonia ligase activity glutamine synthetase activity catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity	glutamine family amino acid biosynthetic process oxoacid metabolic 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 carboxylic acid metabolic process primary metabolic process L-amino acid biosynthetic process glutamine family amino acid biosynthetic process oxoacid metabolic 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 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	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR008146	Glutamine synthetase, catalytic domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR014746	Glutamine synthetase/guanido kinase, catalytic domain	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR008147	Glutamine synthetase, N-terminal domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR036651	Glutamine synthetase, N-terminal domain superfamily	Homologous Superfamily