Annotations: 3PQI

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF18352	e3pqiA1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF18352	ECOD (1.6)
A	PF21930	e3pqiA2	A: beta duplicates or obligate multimers	X: Phage tail fiber protein trimerization domain (From Topology)	H: Phage tail fiber protein trimerization domain (From Topology)	T: Phage tail fiber protein trimerization domain	F: PF21930	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.230	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Gp5 N-terminal domain	CATH (4.3.0)
A	6.20.150.20	Special	Other non-globular	Chondroitinase Ac	Chain A, domain 3	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A	PF18352	Phage protein Gp138 N-terminal domain (Gp138_N)	Phage protein Gp138 N-terminal domain	This domain is found in the N-terminal domain of gene product 138 (gp138) in an unidentified bacteriophage. Gp138 is thought to be involved in the process of opening the host cell membrane during infection. The domain has an OB-fold with an intramole ...	This domain is found in the N-terminal domain of gene product 138 (gp138) in an unidentified bacteriophage. Gp138 is thought to be involved in the process of opening the host cell membrane during infection. The domain has an OB-fold with an intramolecular disulfide bond between C114 and C120 [1].	Domain