3VTN

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Phage_Mu_Gp45	e3vtnA1	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: Phage_Mu_Gp45	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.20.25.540	Mainly Beta	Single Sheet	N-terminal domain of TfIIb		CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A	PF18715	Phage spike trimer (Phage_spike)	Phage spike trimer	-	Repeat

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein gp45	cation binding ion binding binding metal ion binding small molecule binding	symbiont genome ejection through host cell envelope biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle symbiont genome ejection through host cell envelope, contractile tail mechanism biological process involved in interaction with host biological process involved in symbiotic interaction virion assembly viral tail assembly	virus tail virion component virus tail, baseplate host cellular component host intracellular part host cell cytoplasm host cell part host intracellular region cellular anatomical entity