3FEW | pdb_00003few

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth X]	Colicin	e3fewX1	A: a/b three-layered sandwiches	X: Toxins' membrane translocation domains	H: Colicin	T: Colicin	F: Colicin	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	4.10.80.380	Few Secondary Structures	Irregular	Rhinovirus 14, subunit 4		CATH (4.3.0)
A [auth X]	3.30.1310.40	Alpha Beta	2-Layer Sandwich	Ybab	Chain: A	CATH (4.3.0)
A [auth X]	1.10.490.30	Mainly Alpha	Orthogonal Bundle	Globin-like	Colicin	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X]	Colicin S4	pore-forming activity	biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to external stimulus defense response to Gram-negative bacterium response to biotic stimulus defense response to bacterium response to bacterium response to stress response to external biotic stimulus cellular process disruption of cell in another organism disruption of anatomical structure in another organism biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to external stimulus defense response to Gram-negative bacterium response to biotic stimulus defense response to bacterium response to bacterium response to stress response to external biotic stimulus cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing	cellular anatomical structure membrane

Chains	Accession	Name	Type
A [auth X]	IPR055031	Colicin S4, translocation domain	Domain
A [auth X]	IPR038283	Channel forming colicin, C-terminal domain superfamily	Homologous Superfamily
A [auth X]	IPR000293	Channel forming colicin, C-terminal cytotoxic	Domain