Annotations: 3SS4

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	KOG0506	e3ss4A18	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: KOG0506	ECOD (1.6)
A	Glutaminase_2nd	e3ss4A17	A: alpha complex topology	X: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	H: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: alpha-helical domain in beta-lactamase/transpeptidase-like proteins	F: Glutaminase_2nd	ECOD (1.6)
A	Glutaminase_1st	e3ss4A16	A: a+b three layers	X: Profilin-like	H: a+b domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: a+b domain in beta-lactamase/transpeptidase-like proteins	F: Glutaminase_1st	ECOD (1.6)
B	KOG0506	e3ss4B18	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: KOG0506	ECOD (1.6)
B	Glutaminase_2nd	e3ss4B17	A: alpha complex topology	X: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	H: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: alpha-helical domain in beta-lactamase/transpeptidase-like proteins	F: Glutaminase_2nd	ECOD (1.6)
B	Glutaminase_1st	e3ss4B16	A: a+b three layers	X: Profilin-like	H: a+b domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: a+b domain in beta-lactamase/transpeptidase-like proteins	F: Glutaminase_1st	ECOD (1.6)
C	KOG0506	e3ss4C18	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: KOG0506	ECOD (1.6)
C	Glutaminase_2nd	e3ss4C17	A: alpha complex topology	X: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	H: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: alpha-helical domain in beta-lactamase/transpeptidase-like proteins	F: Glutaminase_2nd	ECOD (1.6)
C	Glutaminase_1st	e3ss4C16	A: a+b three layers	X: Profilin-like	H: a+b domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: a+b domain in beta-lactamase/transpeptidase-like proteins	F: Glutaminase_1st	ECOD (1.6)
D	KOG0506	e3ss4D18	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: KOG0506	ECOD (1.6)
D	Glutaminase_2nd	e3ss4D17	A: alpha complex topology	X: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	H: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: alpha-helical domain in beta-lactamase/transpeptidase-like proteins	F: Glutaminase_2nd	ECOD (1.6)
D	Glutaminase_1st	e3ss4D16	A: a+b three layers	X: Profilin-like	H: a+b domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: a+b domain in beta-lactamase/transpeptidase-like proteins	F: Glutaminase_1st	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.238.210	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)
A	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)
B	1.10.238.210	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)
B	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)
C	1.10.238.210	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)
C	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)
D	1.10.238.210	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)
D	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF17959	EF-hand domain (EF-hand_14)	EF-hand domain	This EF-hand domain is found at the N-terminus of the human glutaminase enzyme [1].	Domain
A, B, C, D	PF04960	Glutaminase (Glutaminase)	Glutaminase	This family of enzymes deaminates glutamine to glutamate EC:3.5.1.2.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Glutaminase C	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides glutaminase activity hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds identical protein binding protein binding binding	intracellular amino acid homeostasis cellular homeostasis intracellular glutamate homeostasis chemical homeostasis homeostatic process intracellular chemical homeostasis behavior suckling behavior multicellular organismal process feeding behavior trans-synaptic signaling synaptic signaling regulation of biological process signaling intracellular amino acid homeostasis cellular homeostasis intracellular glutamate homeostasis chemical homeostasis homeostatic process intracellular chemical homeostasis behavior suckling behavior multicellular organismal process feeding behavior trans-synaptic signaling synaptic signaling regulation of biological process signaling anterograde trans-synaptic signaling biological regulation cell-cell signaling cellular process chemical synaptic transmission cell communication protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis system process nervous system process regulation of system process respiratory gaseous exchange by respiratory system respiratory system process regulation of respiratory gaseous exchange regulation of multicellular organismal process regulation of respiratory system process regulation of respiratory gaseous exchange by nervous system process catabolic process oxoacid metabolic process glutamine family amino acid catabolic process amino acid metabolic process organic acid metabolic process organic acid catabolic process alpha-amino acid metabolic process glutamine family amino acid metabolic process cellular catabolic process carboxylic acid catabolic process small molecule metabolic process amino acid catabolic process glutamine metabolic process glutamine catabolic process cellular metabolic process carboxylic acid metabolic process L-amino acid catabolic process primary metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process alpha-amino acid catabolic process proteinogenic amino acid catabolic process metabolic process small molecule catabolic process glutamine family amino acid biosynthetic process cellular biosynthetic process organic acid biosynthetic process carboxylic acid biosynthetic process glutamate metabolic process dicarboxylic acid biosynthetic process small molecule biosynthetic process dicarboxylic acid metabolic process L-amino acid biosynthetic process amino acid biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process glutamate biosynthetic process alpha-amino acid biosynthetic process	synapse cell junction cellular anatomical entity intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle mitochondrion membrane-enclosed lumen intracellular membrane-bounded organelle mitochondrial matrix intracellular organelle lumen intracellular organelle organelle lumen synapse cell junction cellular anatomical entity intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle mitochondrion membrane-enclosed lumen intracellular membrane-bounded organelle mitochondrial matrix intracellular organelle lumen intracellular organelle organelle lumen organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR002110	Ankyrin repeat	Repeat
A, B, C, D	IPR012338	Beta-lactamase/transpeptidase-like	Homologous Superfamily
A, B, C, D	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A, B, C, D	IPR015868	Glutaminase	Family
A, B, C, D	IPR041541	Glutaminase, EF-hand domain	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.