Annotations: 4XLH

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	EUF07526	e4xlhA2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: EUF07526	ECOD (1.6)
A	Glyco_hydro_28	e4xlhA1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Pectin lyase-like (From Topology)	T: Pectin lyase-like	F: Glyco_hydro_28	ECOD (1.6)

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	cation binding ion binding binding metal ion binding small molecule binding	biological process involved in interspecies interaction between organisms biological process involved in interaction with host biological process involved in symbiotic interaction viral process viral life cycle	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.