Annotations: 3A56

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e3a56A1	A: beta barrels	X: OB-fold	H: Bacterial enterotoxins (From Topology)	T: Bacterial enterotoxins	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF18626	e3a56A2	A: a+b complex topology	X: Cysteine proteinases-like	H: Cysteine proteinases (From Topology)	T: Cysteine proteinases	F: PF18626	ECOD (1.6)
B	F_UNCLASSIFIED	e3a56B1	A: beta barrels	X: OB-fold	H: Bacterial enterotoxins (From Topology)	T: Bacterial enterotoxins	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF18626	e3a56B2	A: a+b complex topology	X: Cysteine proteinases-like	H: Cysteine proteinases (From Topology)	T: Cysteine proteinases	F: PF18626	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Provenance Source (Version)
A	2.40.50.340	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	CATH (4.3.0)
A	3.10.620.30	Alpha Beta	Roll	C8orf32 fold	CATH (4.3.0)
B	2.40.50.340	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	CATH (4.3.0)
B	3.10.620.30	Alpha Beta	Roll	C8orf32 fold	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B	PF18626	Glutaminase (Gln_deamidase_2)	Glutaminase	Protein glutaminase (PG, EC 3.5.1.44) can deamidate glutamine residues in proteins to glutamate residues. This entry represents the mature PG enzyme which bears partial homology to factor XIII-like Transglutaminase (TG), especially its Cys-His-Asp ca ...	Protein glutaminase (PG, EC 3.5.1.44) can deamidate glutamine residues in proteins to glutamate residues. This entry represents the mature PG enzyme which bears partial homology to factor XIII-like Transglutaminase (TG), especially its Cys-His-Asp catalytic triad. A similar triad (Cys-His-Asn) is also shared by some cysteine proteases such as papain and actinidin. The mature PG is a monomer enzyme consisting of 185 amino acid residues [1].	Domain