4OJ6

Crystal Structure of a Putative Tailspike Protein (TSP1, orf210) from Escherichia coli O157:H7 Bacteriohage CBA120; Se-Met Protein

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	EUF07849	e4oj6A1	A: beta sandwiches	X: Putative tailspike protein Orf210 N-terminal domain (From Topology)	H: Putative tailspike protein Orf210 N-terminal domain (From Topology)	T: Putative tailspike protein Orf210 N-terminal domain	F: EUF07849	ECOD (1.6)
A	Pectate_lyase_3	e4oj6A2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Pectin lyase-like (From Topology)	T: Pectin lyase-like	F: Pectate_lyase_3	ECOD (1.6)
B	EUF07849	e4oj6B1	A: beta sandwiches	X: Putative tailspike protein Orf210 N-terminal domain (From Topology)	H: Putative tailspike protein Orf210 N-terminal domain (From Topology)	T: Putative tailspike protein Orf210 N-terminal domain	F: EUF07849	ECOD (1.6)
B	Pectate_lyase_3	e4oj6B2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Pectin lyase-like (From Topology)	T: Pectin lyase-like	F: Pectate_lyase_3	ECOD (1.6)
C	EUF07849	e4oj6C1	A: beta sandwiches	X: Putative tailspike protein Orf210 N-terminal domain (From Topology)	H: Putative tailspike protein Orf210 N-terminal domain (From Topology)	T: Putative tailspike protein Orf210 N-terminal domain	F: EUF07849	ECOD (1.6)
C	Pectate_lyase_3	e4oj6C2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Pectin lyase-like (From Topology)	T: Pectin lyase-like	F: Pectate_lyase_3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.2020.50	Alpha Beta	2-Layer Sandwich	NE0471 N-terminal domain-like		CATH (4.3.0)
A	2.10.10.80	Mainly Beta	Ribbon	Seminal Fluid Protein PDC-109 (Domain B)		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	2.160.20.130	Mainly Beta	3 Solenoid	Pectate Lyase C-like		CATH (4.3.0)
B	3.30.2020.50	Alpha Beta	2-Layer Sandwich	NE0471 N-terminal domain-like		CATH (4.3.0)
B	2.10.10.80	Mainly Beta	Ribbon	Seminal Fluid Protein PDC-109 (Domain B)		CATH (4.3.0)
B	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)
B	2.160.20.130	Mainly Beta	3 Solenoid	Pectate Lyase C-like		CATH (4.3.0)
C	3.30.2020.50	Alpha Beta	2-Layer Sandwich	NE0471 N-terminal domain-like		CATH (4.3.0)
C	2.10.10.80	Mainly Beta	Ribbon	Seminal Fluid Protein PDC-109 (Domain B)		CATH (4.3.0)
C	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)
C	2.160.20.130	Mainly Beta	3 Solenoid	Pectate Lyase C-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF18668	Tail spike TSP1/Gp66 receptor binding N-terminal domain (Tail_spike_N)	Tail spike TSP1/Gp66 receptor binding N-terminal domain	Bacteriophages recognize and bind to their hosts with the help of receptor-binding proteins (RBPs) that emanate from the phage particle in the form of fibers or tailspikes. RBPs of podovirus G7C tailspikes gp63.1 and gp66 are essential for infection ...	Bacteriophages recognize and bind to their hosts with the help of receptor-binding proteins (RBPs) that emanate from the phage particle in the form of fibers or tailspikes. RBPs of podovirus G7C tailspikes gp63.1 and gp66 are essential for infection of its natural host bacterium E. coli 4s. Gp63.1 and gp66 form a stable complex, in which the N-terminal part of gp66 serves as an attachment site for gp63.1 and anchors the gp63.1-gp66 complex to the G7C tail. The two N-terminal domains show 70% sequence identity to the N-terminal region of the CBA120 phage tailspike 1 (orf210, TSP1) [1]. The N-terminal domain of TSP1 is the virion head binding domain that interfaces with the phage baseplate. The N-terminal domain can be further divided into two subdomains, each beginning with a alpha-helix followed by an anti-parallel beta-sandwich. Subdomain two folds similarly to the chitin binding domain of Chitinase from Bacillus circulans [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Tailspike protein	-	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, B, C	IPR012334	Pectin lyase fold	Homologous Superfamily
A, B, C	IPR040775	Tail spike TSP1/Gp66, N-terminal domain	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.