Annotations: 4KU0

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2 Family	PAAR-repeat motif	8047271	4005541	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	PAAR-repeat motif	8053384	3002181	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	5	e4ku0A1	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: 5	ECOD (1.6)
B	5	e4ku0B1	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: 5	ECOD (1.6)
C	5	e4ku0C1	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: 5	ECOD (1.6)
D	PAAR_motif	e4ku0D1	A: beta barrels	X: Ribosomal protein L14-like	H: PAAR-repeat protein (From Topology)	T: PAAR-repeat protein	F: PAAR_motif	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	2.60.200.60	Mainly Beta	Sandwich	Tumour Suppressor Smad4		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF06715	Gp5 C-terminal repeat (3 copies) (Gp5_C)	Gp5 C-terminal repeat (3 copies)	-	Repeat
D	PF05488	PAAR motif (PAAR_motif)	PAAR motif	-	Motif

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Tail-associated lysozyme	hydrolase activity, acting on glycosyl bonds peptidoglycan muralytic activity hydrolase activity, hydrolyzing O-glycosyl compounds lysozyme activity hydrolase activity catalytic activity identical protein binding protein binding binding	biological process involved in interspecies interaction between organisms symbiont entry into host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated disruption of host anatomical structure viral life cycle disruption of cell wall in another organism symbiont-mediated disruption of host cell wall 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 wall peptidoglycan disruption of cellular anatomical structure in another organism symbiont entry into host cell viral process biological process involved in interspecies interaction between organisms symbiont entry into host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated disruption of host anatomical structure viral life cycle disruption of cell wall in another organism symbiont-mediated disruption of host cell wall 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 wall peptidoglycan disruption of cellular anatomical structure in another organism symbiont entry into host cell viral process disruption of anatomical structure in another organism symbiont entry into host cell via disruption of host cell envelope virion assembly viral tail assembly catabolic process cell wall organization or biogenesis metabolic process cellular process macromolecule metabolic process macromolecule catabolic process cell wall macromolecule catabolic process cell wall macromolecule metabolic process disruption of cell in another organism killing of cells of another organism cell killing response to stimulus response to other organism defense response response to external stimulus response to biotic stimulus defense response to bacterium defense response to other organism response to stress response to bacterium response to external biotic stimulus carbohydrate derivative catabolic process peptidoglycan catabolic process glycosaminoglycan metabolic process carbohydrate derivative metabolic process aminoglycan catabolic process glycosaminoglycan catabolic process aminoglycan metabolic process peptidoglycan metabolic process	virus tail virion component virus tail, baseplate
D	Uncharacterized 10.2 kDa protein in segC-Gp6 intergenic region	hydrolase activity, acting on glycosyl bonds peptidoglycan muralytic activity hydrolase activity, hydrolyzing O-glycosyl compounds lysozyme activity hydrolase activity catalytic activity peptidoglycan beta-N-acetylmuramidase activity cation binding ion binding binding metal ion binding small molecule binding	-	virus tail virion component virus tail, baseplate

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR052619	Bacteriophage lysozyme-like	Family
A, B, C	IPR009590	Protein Gp5, N-terminal OB-fold domain	Domain
A, B, C	IPR023347	Lysozyme domain superfamily	Homologous Superfamily
A, B, C	IPR023346	Lysozyme-like domain superfamily	Homologous Superfamily
A, B, C	IPR046397	Pre-baseplate central spike protein Gp5	Family
A, B, C	IPR001165	T4-type lysozyme	Family
A, B, C	IPR010609	Gp5, C-terminal	Repeat
A, B, C	IPR002196	Glycoside hydrolase, family 24	Family
D	IPR008727	PAAR motif	Repeat

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.