6KLW

Complex structure of Iota toxin enzymatic component (Ia) and binding component (Ib) pore with long stem

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
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
H	d6klwh1	Alpha and beta proteins (a+b)	ADP-ribosylation	ADP-ribosylation	ADP-ribosylating toxins	automated matches	(Clostridium perfringens ) [TaxId: 1502 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
H	SCOP2B Superfamily	ADP-ribosylation	8042207	3001208	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	ADP-ribosylation	8042206	3001208	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)
B	PF17475	e6klwB3	A: beta sandwiches	X: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	H: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	T: Middle beta-sandwich domain in anthrax protective antigen	F: PF17475	ECOD (1.6)
B	PF17476	e6klwB2	A: a+b two layers	X: beta-grasp domain in anthrax protective antigen (From Topology)	H: beta-grasp domain in anthrax protective antigen (From Topology)	T: beta-grasp domain in anthrax protective antigen	F: PF17476	ECOD (1.6)
B	PF03495	e6klwB1	A: few secondary structure elements	X: Ca-binding domain in anthrax protective antigen (From Topology)	H: Ca-binding domain in anthrax protective antigen (From Topology)	T: Ca-binding domain in anthrax protective antigen	F: PF03495	ECOD (1.6)
G	PF17475	e6klwG1	A: beta sandwiches	X: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	H: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	T: Middle beta-sandwich domain in anthrax protective antigen	F: PF17475	ECOD (1.6)
G	PF17476	e6klwG3	A: a+b two layers	X: beta-grasp domain in anthrax protective antigen (From Topology)	H: beta-grasp domain in anthrax protective antigen (From Topology)	T: beta-grasp domain in anthrax protective antigen	F: PF17476	ECOD (1.6)
G	PF03495	e6klwG2	A: few secondary structure elements	X: Ca-binding domain in anthrax protective antigen (From Topology)	H: Ca-binding domain in anthrax protective antigen (From Topology)	T: Ca-binding domain in anthrax protective antigen	F: PF03495	ECOD (1.6)
A	PF17475	e6klwA2	A: beta sandwiches	X: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	H: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	T: Middle beta-sandwich domain in anthrax protective antigen	F: PF17475	ECOD (1.6)
A	PF17476	e6klwA3	A: a+b two layers	X: beta-grasp domain in anthrax protective antigen (From Topology)	H: beta-grasp domain in anthrax protective antigen (From Topology)	T: beta-grasp domain in anthrax protective antigen	F: PF17476	ECOD (1.6)
A	PF03495	e6klwA1	A: few secondary structure elements	X: Ca-binding domain in anthrax protective antigen (From Topology)	H: Ca-binding domain in anthrax protective antigen (From Topology)	T: Ca-binding domain in anthrax protective antigen	F: PF03495	ECOD (1.6)
C	PF17475	e6klwC3	A: beta sandwiches	X: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	H: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	T: Middle beta-sandwich domain in anthrax protective antigen	F: PF17475	ECOD (1.6)
C	PF17476	e6klwC2	A: a+b two layers	X: beta-grasp domain in anthrax protective antigen (From Topology)	H: beta-grasp domain in anthrax protective antigen (From Topology)	T: beta-grasp domain in anthrax protective antigen	F: PF17476	ECOD (1.6)
C	PF03495	e6klwC1	A: few secondary structure elements	X: Ca-binding domain in anthrax protective antigen (From Topology)	H: Ca-binding domain in anthrax protective antigen (From Topology)	T: Ca-binding domain in anthrax protective antigen	F: PF03495	ECOD (1.6)
D	PF17475	e6klwD2	A: beta sandwiches	X: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	H: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	T: Middle beta-sandwich domain in anthrax protective antigen	F: PF17475	ECOD (1.6)
D	PF17476	e6klwD1	A: a+b two layers	X: beta-grasp domain in anthrax protective antigen (From Topology)	H: beta-grasp domain in anthrax protective antigen (From Topology)	T: beta-grasp domain in anthrax protective antigen	F: PF17476	ECOD (1.6)
D	PF03495	e6klwD3	A: few secondary structure elements	X: Ca-binding domain in anthrax protective antigen (From Topology)	H: Ca-binding domain in anthrax protective antigen (From Topology)	T: Ca-binding domain in anthrax protective antigen	F: PF03495	ECOD (1.6)
E	PF17475	e6klwE2	A: beta sandwiches	X: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	H: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	T: Middle beta-sandwich domain in anthrax protective antigen	F: PF17475	ECOD (1.6)
E	PF17476	e6klwE3	A: a+b two layers	X: beta-grasp domain in anthrax protective antigen (From Topology)	H: beta-grasp domain in anthrax protective antigen (From Topology)	T: beta-grasp domain in anthrax protective antigen	F: PF17476	ECOD (1.6)
E	PF03495	e6klwE1	A: few secondary structure elements	X: Ca-binding domain in anthrax protective antigen (From Topology)	H: Ca-binding domain in anthrax protective antigen (From Topology)	T: Ca-binding domain in anthrax protective antigen	F: PF03495	ECOD (1.6)
F	PF17475	e6klwF2	A: beta sandwiches	X: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	H: Middle beta-sandwich domain in anthrax protective antigen (From Topology)	T: Middle beta-sandwich domain in anthrax protective antigen	F: PF17475	ECOD (1.6)
F	PF17476	e6klwF3	A: a+b two layers	X: beta-grasp domain in anthrax protective antigen (From Topology)	H: beta-grasp domain in anthrax protective antigen (From Topology)	T: beta-grasp domain in anthrax protective antigen	F: PF17476	ECOD (1.6)
F	PF03495	e6klwF1	A: few secondary structure elements	X: Ca-binding domain in anthrax protective antigen (From Topology)	H: Ca-binding domain in anthrax protective antigen (From Topology)	T: Ca-binding domain in anthrax protective antigen	F: PF03495	ECOD (1.6)
H	PF03496	e6klwH2	A: a+b complex topology	X: ADP-ribosylation (From Topology)	H: ADP-ribosylation (From Topology)	T: ADP-ribosylation	F: PF03496	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
G	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (utative)
F	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (utative)
H	3.90.176.10	Alpha Beta	Alpha-Beta Complex	Toxin ADP-ribosyltransferase	Chain A, domain 1	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G	PF17475	Clostridial binary toxin B/anthrax toxin PA domain 2 (Binary_toxB_2)	Clostridial binary toxin B/anthrax toxin PA domain 2	This domain forms the middle beta sandwish domain in anthrax toxin.	Domain
A, B, C, D, E A, B, C, D, E, F, G	PF03495	Clostridial binary toxin B/anthrax toxin PA Ca-binding domain (Binary_toxB)	Clostridial binary toxin B/anthrax toxin PA Ca-binding domain	This domain is a calcium binding domain in the anthrax toxin protective antigen.	Domain
A, B, C, D, E A, B, C, D, E, F, G	PF17476	Clostridial binary toxin B/anthrax toxin PA domain 3 (Binary_toxB_3)	Clostridial binary toxin B/anthrax toxin PA domain 3	This entry represents the beta-grasp domain in anthrax protective antigen.	Domain
H	PF03496	ADP-ribosyltransferase exoenzyme (ADPrib_exo_Tox)	ADP-ribosyltransferase exoenzyme	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G	Iota toxin component Ib	-	cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis	extracellular region cellular anatomical entity
H	Iota toxin component Ia	binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding	-	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G	IPR035331	Clostridial binary toxin B/anthrax toxin PA, domain 3	Domain
A, B, C, D, E A, B, C, D, E, F, G	IPR011658	PA14 domain	Domain
A, B, C, D, E A, B, C, D, E, F, G	IPR027439	Protective antigen, heptamerisation domain	Domain
A, B, C, D, E A, B, C, D, E, F, G	IPR035088	Protective antigen, Ca-binding domain	Domain
A, B, C, D, E A, B, C, D, E, F, G	IPR037149	Protective antigen, heptamerisation domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G	IPR003896	Bacterial exotoxin B	Family
H	IPR003540	ADP ribosyltransferase	Domain
H	IPR016013	Binary exotoxin A, clostridial type	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E A, B, C, D, E, F, G	OPM	Transmembrane	Beta-barrel transmembrane	Pore-forming beta-sheet toxins	Channel-forming Bacillus protective antigen (n=14,S=14)

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E A, B, C, D, E, F, G	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Adventitious Membrane Proteins: Beta-sheet Pore-forming Toxins/Attack Complexes	Binary iota toxin complex Ib pore