Annotations: 2BK1

The pore structure of pneumolysin, obtained by fitting the alpha carbon trace of perfringolysin O into a cryo-EM map

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	CDC membrane-sensing domain-like	8037955	3000285	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	MAC/CDC-like	8052018	3002081	SCOP2B (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	PEP-utilisers_N	e2bk1A1	A: a/b three-layered sandwiches	X: Tautomerase/MIF-like	H: Tautomerase/MIF	T: Tautomerase/MIF	F: PEP-utilisers_N	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF17440	Thiol-activated cytolysin beta sandwich domain (Thiol_cytolys_C)	Thiol-activated cytolysin beta sandwich domain	This domain has an immunoglobulin like fold. It is found at the C-terminus of the thiol-activated cytolsin protein.	Domain
A	PF01289	Thiol-activated cytolysin (Thiol_cytolysin)	Thiol-activated cytolysin	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PERFRINGOLYSIN O	sterol binding binding alcohol binding steroid binding lipid binding cholesterol binding small molecule binding toxin activity	hemolysis in another organism biological process involved in interspecies interaction between organisms cytolysis in another organism cellular process disruption of cell in another organism disruption of anatomical structure in another organism cytolysis killing of cells of another organism cell killing symbiont-mediated cytolysis of host cell biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated killing of host cell	host cell plasma membrane host cellular component cellular anatomical structure host cell part host cell membrane other organism part extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038700	Thiol-activated cytolysin, C-terminal domain superfamily	Homologous Superfamily
A	IPR036359	Thiol-activated cytolysin superfamily	Homologous Superfamily
A	IPR035390	Thiol-activated cytolysin C-terminal	Domain
A	IPR001869	Thiol-activated cytolysin	Family
A	IPR036363	Thiol-activated cytolysin, alpha-beta domain superfamily	Homologous Superfamily

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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.