3HVD

The Protective Antigen Component of Anthrax Toxin Forms Functional Octameric Complexes

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF17475	e3hvdA1	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	PF20835	e3hvdA2	A: beta sandwiches	X: Ig-like domain in anthrax protective antigen (From Topology)	H: Ig-like domain in anthrax protective antigen (From Topology)	T: Ig-like domain in anthrax protective antigen	F: PF20835	ECOD (1.6)
A	PF17476	e3hvdA3	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	e3hvdA4	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)
B	PF17475	e3hvdB1	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	PF20835	e3hvdB2	A: beta sandwiches	X: Ig-like domain in anthrax protective antigen (From Topology)	H: Ig-like domain in anthrax protective antigen (From Topology)	T: Ig-like domain in anthrax protective antigen	F: PF20835	ECOD (1.6)
B	PF17476	e3hvdB3	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	e3hvdB4	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	e3hvdC1	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	PF20835	e3hvdC2	A: beta sandwiches	X: Ig-like domain in anthrax protective antigen (From Topology)	H: Ig-like domain in anthrax protective antigen (From Topology)	T: Ig-like domain in anthrax protective antigen	F: PF20835	ECOD (1.6)
C	PF17476	e3hvdC3	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	e3hvdC4	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	e3hvdD1	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	PF20835	e3hvdD2	A: beta sandwiches	X: Ig-like domain in anthrax protective antigen (From Topology)	H: Ig-like domain in anthrax protective antigen (From Topology)	T: Ig-like domain in anthrax protective antigen	F: PF20835	ECOD (1.6)
D	PF17476	e3hvdD3	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	e3hvdD4	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	e3hvdE1	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	PF20835	e3hvdE2	A: beta sandwiches	X: Ig-like domain in anthrax protective antigen (From Topology)	H: Ig-like domain in anthrax protective antigen (From Topology)	T: Ig-like domain in anthrax protective antigen	F: PF20835	ECOD (1.6)
E	PF17476	e3hvdE3	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	e3hvdE4	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	e3hvdF1	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	PF20835	e3hvdF2	A: beta sandwiches	X: Ig-like domain in anthrax protective antigen (From Topology)	H: Ig-like domain in anthrax protective antigen (From Topology)	T: Ig-like domain in anthrax protective antigen	F: PF20835	ECOD (1.6)
F	PF17476	e3hvdF3	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	e3hvdF4	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	e3hvdG4	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	PF20835	e3hvdG2	A: beta sandwiches	X: Ig-like domain in anthrax protective antigen (From Topology)	H: Ig-like domain in anthrax protective antigen (From Topology)	T: Ig-like domain in anthrax protective antigen	F: PF20835	ECOD (1.6)
G	PF17476	e3hvdG3	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	e3hvdG1	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	PF17475	e3hvdH1	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)
H	PF20835	e3hvdH2	A: beta sandwiches	X: Ig-like domain in anthrax protective antigen (From Topology)	H: Ig-like domain in anthrax protective antigen (From Topology)	T: Ig-like domain in anthrax protective antigen	F: PF20835	ECOD (1.6)
H	PF17476	e3hvdH3	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)
H	PF03495	e3hvdH4	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)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.240	Mainly Beta	Sandwich	Jelly Rolls	Protective antigen, heptamerisation domain	CATH (4.3.0)
A	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
A	2.60.40.810	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
B	2.60.120.240	Mainly Beta	Sandwich	Jelly Rolls	Protective antigen, heptamerisation domain	CATH (4.3.0)
B	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
B	2.60.40.810	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
C	2.60.120.240	Mainly Beta	Sandwich	Jelly Rolls	Protective antigen, heptamerisation domain	CATH (4.3.0)
C	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
C	2.60.40.810	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
D	2.60.120.240	Mainly Beta	Sandwich	Jelly Rolls	Protective antigen, heptamerisation domain	CATH (4.3.0)
D	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
D	2.60.40.810	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
E	2.60.120.240	Mainly Beta	Sandwich	Jelly Rolls	Protective antigen, heptamerisation domain	CATH (4.3.0)
E	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
E	2.60.40.810	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
F	2.60.120.240	Mainly Beta	Sandwich	Jelly Rolls	Protective antigen, heptamerisation domain	CATH (4.3.0)
F	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
F	2.60.40.810	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
G	2.60.120.240	Mainly Beta	Sandwich	Jelly Rolls	Protective antigen, heptamerisation domain	CATH (4.3.0)
G	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
G	2.60.40.810	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
H	2.60.120.240	Mainly Beta	Sandwich	Jelly Rolls	Protective antigen, heptamerisation domain	CATH (4.3.0)
H	3.10.20.110	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
H	2.60.40.810	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G, H	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, H	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
A, B, C, D, E A, B, C, D, E, F, G, H	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, H	PF20835	Anthrax protective antigen, immunoglobulin-like domain (PA_Ig-like)	Anthrax protective antigen, immunoglobulin-like domain	Anthrax protective antigen (PA) is one of the three proteins forming the anthrax toxin. It is involved in the first step of toxin entry into host cells, enabling lethal factor (LF) and oedema factor (EF) to cross to the cytosol. PA undergoes cleavage ...	Anthrax protective antigen (PA) is one of the three proteins forming the anthrax toxin. It is involved in the first step of toxin entry into host cells, enabling lethal factor (LF) and oedema factor (EF) to cross to the cytosol. PA undergoes cleavage by Furin to generate PA20 and PA63. The latter, which adopts a ring-shaped heptameric assembly, shows four distinct domains. The fourth domain, a carboxy- terminal receptor-binding domain, shows an initial hairpin and helix, followed by a beta-sandwich with an immunoglobulin-like fold (this entry) [1-5].	Domain

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, H	Protective antigen	cation binding ion binding binding metal ion binding small molecule binding	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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H	IPR035331	Clostridial binary toxin B/anthrax toxin PA, domain 3	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR011658	PA14 domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR027439	Protective antigen, heptamerisation domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR035088	Protective antigen, Ca-binding domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR048853	Anthrax protective antigen, immunoglobulin-like domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR037524	PA14/GLEYA domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR037149	Protective antigen, heptamerisation domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR003896	Bacterial exotoxin B	Family
A, B, C, D, E A, B, C, D, E, F, G, H	IPR027441	Protective antigen, domain 4	Homologous Superfamily