4HKH

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	T6SS_HCP	e4hkhA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: T6SS_HCP	ECOD (1.6)
B	T6SS_HCP	e4hkhB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: T6SS_HCP	ECOD (1.6)
C [auth D]	T6SS_HCP	e4hkhD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: T6SS_HCP	ECOD (1.6)
E [auth F]	T6SS_HCP	e4hkhF1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: T6SS_HCP	ECOD (1.6)
D [auth E]	T6SS_HCP	e4hkhE1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: T6SS_HCP	ECOD (1.6)
F [auth G]	T6SS_HCP	e4hkhG1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: T6SS_HCP	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
B	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
C [auth D]	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
E [auth F]	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
D [auth E]	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
F [auth G]	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A, B, C [auth D], D [auth E], E [auth F], A, B, C [auth D], D [auth E], E [auth F], F [auth G]	PF05638	Type VI secretion system effector, Hcp (T6SS_HCP)	Type VI secretion system effector, Hcp	HCP is a family of proteins which are expressed in up to 1000 copies in Gram-negative bacteria. Together these copies aggregate into a needle-like shaft or tube that will penetrate other bacteria via a puncturing protein attached to its head [1]. In ...	HCP is a family of proteins which are expressed in up to 1000 copies in Gram-negative bacteria. Together these copies aggregate into a needle-like shaft or tube that will penetrate other bacteria via a puncturing protein attached to its head [1]. Initially Hcp forms a hexameric structure with a central channel of 40 Angstroms. These hexamers pile up one on top of each other forming nanotubes resembling the gp19 tail phage tube [2].	Domain

Chains	Accession	Name	Type
A, B, C [auth D], D [auth E], E [auth F], A, B, C [auth D], D [auth E], E [auth F], F [auth G]	IPR036624	Hcp1-like superfamily	Homologous Superfamily
A, B, C [auth D], D [auth E], E [auth F], A, B, C [auth D], D [auth E], E [auth F], F [auth G]	IPR008514	Type VI secretion system effector Hcp	Family