Annotations: 4XKV

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e4xkvA1	A: ACP-like	X: Acyl-carrier protein (ACP)	H: Acyl-carrier protein (ACP)	T: Carb_anhydrase	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	6.10.20.90	Special	Helix non-globular	Arc Repressor Mutant, subunit A	Hk620 tailspike protein, N-terminal domain-like	CATH (4.3.0)
A	2.160.20.10	Mainly Beta	3 Solenoid	Pectate Lyase C-like	Single-stranded right-handed beta-helix, Pectin lyase-like	CATH (4.3.0)
A	2.40.30.250	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18781	Phage spike trimer (Phage_spike_2)	Phage spike trimer	-	Repeat
A	PF22424	HK620, Tail spike protein, C-terminal (HK620_9_C)	HK620, Tail spike protein, C-terminal	This domain is found at the C-terminal end of Tail spike protein from Enterobacteria phage HK620 (9). This domain adopts a beta -sandwich configuration [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Tail spike protein	hydrolase activity, acting on glycosyl bonds endo-1,3-alpha-L-rhamnosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral process viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated disruption of host anatomical structure symbiont-mediated disruption of host cell envelope symbiont-mediated disruption of host cellular anatomical structure symbiont entry into host cell via disruption of host cell envelope symbiont entry into host cell symbiont entry into host virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral process viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated disruption of host anatomical structure symbiont-mediated disruption of host cell envelope symbiont-mediated disruption of host cellular anatomical structure symbiont entry into host cell via disruption of host cell envelope symbiont entry into host cell symbiont entry into host disruption of anatomical structure in another organism symbiont entry into host cell via disruption of host cell envelope lipopolysaccharide symbiont-mediated disruption of host cell wall	virus tail, fiber virus tail virion component

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041303	Phage spike trimer 2	Repeat
A	IPR012334	Pectin lyase fold	Homologous Superfamily
A	IPR036730	Phage P22 tailspike-like, N-terminal domain superfamily	Homologous Superfamily
A	IPR009093	Bacteriophage P22 tailspike, N-terminal	Domain
A	IPR011050	Pectin lyase fold/virulence factor	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.