3QDR

Structural characterization of the interaction of colicin A, colicin N, and TolB with the TolAIII translocon

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3qdra_	Alpha and beta proteins (a+b)	TolA/TonB C-terminal domain	TolA/TonB C-terminal domain	TolA	automated matches	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	TolA/TonB C-terminal domain-like	8035781	3000464	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	TolA	e3qdrA2	A: a+b two layers	X: TolA/TonB C-terminal domain	H: TolA/TonB C-terminal domain (From Topology)	T: TolA/TonB C-terminal domain	F: TolA	ECOD (1.6)
B	EUF07603	e3qdrB1	A: beta meanders	X: Colicin-A N-terminal domain (From Topology)	H: Colicin-A N-terminal domain (From Topology)	T: Colicin-A N-terminal domain	F: EUF07603	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.1150.10	Alpha Beta	2-Layer Sandwich	Fusion Protein Consisting Of Minor Coat Protein, Glycine Rich Linker, Tola, And A His Tag	Chain: A	CATH (4.3.0)
B	2.30.30.970	Mainly Beta	Roll	SH3 type barrels.		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF22348	Colicin-A N-terminal domain (ColA_N)	Colicin-A N-terminal domain	This entry represents the N-terminal translocation domain of colicin A, an endonuclease active on both single- and double-stranded DNA but with undefined specificity [1,2]. This domain interacts directly with TolAIII (C-terminal domain of TolA) which ...	This entry represents the N-terminal translocation domain of colicin A, an endonuclease active on both single- and double-stranded DNA but with undefined specificity [1,2]. This domain interacts directly with TolAIII (C-terminal domain of TolA) which facilitates translocation through the cell envelope to reach their cytotoxic site of action [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein tolA	protein binding binding protein domain specific binding toxin transmembrane transporter activity transporter activity transmembrane transporter activity virion binding disordered domain specific binding	cell septum assembly cytokinesis cellular component biogenesis cellular component organization cellular component assembly cytokinetic process cellular process cell cycle cell division cellular component organization or biogenesis cell cycle process protein localization protein import establishment of protein localization cell septum assembly cytokinesis cellular component biogenesis cellular component organization cellular component assembly cytokinetic process cellular process cell cycle cell division cellular component organization or biogenesis cell cycle process protein localization protein import establishment of protein localization cellular localization nitrogen compound transport transport establishment of localization localization protein transport cellular macromolecule localization macromolecule localization amide transport bacteriocin transport biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction membrane organization regulation of biological process regulation of cellular component organization regulation of cellular process biological regulation membrane invagination regulation of membrane invagination cellular response to nitrogen compound cellular response to stimulus response to bacteriocin response to stimulus response to oxygen-containing compound response to nitrogen compound response to antibiotic cellular response to oxygen-containing compound cellular response to antibiotic cellular response to chemical stimulus cellular response to bacteriocin response to chemical	cellular anatomical structure membrane cell division site cell periphery plasma membrane
B	Colicin-A	molecular adaptor activity 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 defense response to other organism response to stress response to bacterium response to external biotic stimulus cellular process disruption of cell 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 defense response to other organism response to stress response to bacterium 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	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR014161	Tol-Pal system, TolA	Family
B	IPR055023	Colicin-A, N-terminal domain	Domain
B	IPR038283	Channel forming colicin, C-terminal domain superfamily	Homologous Superfamily
B	IPR000293	Channel forming colicin, C-terminal cytotoxic	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	MLY	Parent Component: LYS RESID: AA0075 PSI-MOD : N6,N6-dimethyl-L-lysine MOD:00084

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.