Annotations: 3TUL

Crystal structure of N-terminal region of Type III Secretion Major Translocator SipB (residues 82-226)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: CATH
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)
D	SCOP2 Family	T3SSipB-like	8045733	4004647	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	T3SSipB-like	8091699	3002537	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	T3SSipB-like	8091699	3002537	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	T3SSipB-like	8091699	3002537	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	T3SSipB-like	8091699	3002537	SCOP2B (2022-06-29)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.20.120.330	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Nucleotidyltransferases domain 2	CATH (4.3.0)
C	1.20.120.330	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Nucleotidyltransferases domain 2	CATH (4.3.0)
B	1.20.120.330	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Nucleotidyltransferases domain 2	CATH (4.3.0)
A	1.20.120.330	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Nucleotidyltransferases domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF16535	Type III cell invasion protein SipB (T3SSipB)	Type III cell invasion protein SipB	T3SSipB is a family of pathogenic Gram-negative bacterial proteins that invade human intestinal cells via the type III secretion system translocators. T3SSipB represents the coiled -coil region of the proteins and is shown to be homologous in activit ...	T3SSipB is a family of pathogenic Gram-negative bacterial proteins that invade human intestinal cells via the type III secretion system translocators. T3SSipB represents the coiled -coil region of the proteins and is shown to be homologous in activity to the pore-forming toxins of other Gram-negative pathogens, such as colicin Ia [1-8].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Cell invasion protein sipB	-	localization protein localization to Golgi apparatus protein localization to organelle macromolecule localization intracellular protein localization biological process involved in interspecies interaction between organisms cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing	host cellular component cellular anatomical structure host cell part host cell membrane other organism part membrane extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR003895	Type III secretion system, SctE/BipB	Family
A, B, C, D	IPR032391	IpaB/BipB/SctE, N-terminal	Domain
A, B, C, D	IPR006972	Translocator protein BipB-like, C-terminal domain	Domain

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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.