2KZ4 | pdb_00002kz4

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Phage head-tail joining protein-like	8106795	4005560	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Phage head-tail joining protein-like	8106796	3002861	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Phage_H_T_join	e2kz4A1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: Phage_H_T_join	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.10.270	Mainly Beta	Beta Barrel	Thrombin, subunit H	Bacteriophage SPP1 head-tail adaptor protein	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A	PF05521	Phage head completion protein (Phage_HCP)	Phage head completion protein	This entry represents the head completion protein (gp16) found in Siphoviridae bacteriophages. This protein functions as a stopper in the portal-tail connector complex, locking the viral DNA inside the capsid. During infection, it undergoes a conform ...	This entry represents the head completion protein (gp16) found in Siphoviridae bacteriophages. This protein functions as a stopper in the portal-tail connector complex, locking the viral DNA inside the capsid. During infection, it undergoes a conformational change, opening by a diaphragm-like motion to allow the genome to exit the capsid through the tail tube to the host cell. The protein also functions as a docking platform for the preassembled tail. The connector complex is essential for stable viral particle assembly and controlled genome release during host infection.	Domain