Annotations: 6W6M

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Secretin_N	e6w6mA1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
A	Secretin	e6w6mA2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
A	STN	e6w6mA3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
B	Secretin_N	e6w6mB1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
B	Secretin	e6w6mB2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
B	STN	e6w6mB3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
C	Secretin_N	e6w6mC1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
C	Secretin	e6w6mC2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
C	STN	e6w6mC3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
D	Secretin_N	e6w6mD2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
D	Secretin	e6w6mD1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
D	STN	e6w6mD3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
E	Secretin_N	e6w6mE2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
E	Secretin	e6w6mE1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
E	STN	e6w6mE3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
F	Secretin_N	e6w6mF1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
F	Secretin	e6w6mF2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
F	STN	e6w6mF3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
G	Secretin_N	e6w6mG2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
G	Secretin	e6w6mG1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
G	STN	e6w6mG3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
H	Secretin_N	e6w6mH2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
H	Secretin	e6w6mH1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
H	STN	e6w6mH3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
I	Secretin_N	e6w6mI1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
I	Secretin	e6w6mI2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
I	STN	e6w6mI3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
J	Secretin_N	e6w6mJ1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
J	Secretin	e6w6mJ2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
J	STN	e6w6mJ3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
K	Secretin_N	e6w6mK2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
K	Secretin	e6w6mK1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
K	STN	e6w6mK3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
L	Secretin_N	e6w6mL2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
L	Secretin	e6w6mL1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
L	STN	e6w6mL3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
M	Secretin_N	e6w6mM1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
M	Secretin	e6w6mM2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
M	STN	e6w6mM3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)
N	Secretin_N	e6w6mN2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
N	Secretin	e6w6mN1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin	ECOD (1.6)
N	STN	e6w6mN3	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: STN	ECOD (1.6)

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, I, J, K, L, M, N	PF03958	Bacterial type II/III secretion system short domain (Secretin_N)	Bacterial type II/III secretion system short domain	This is a short, often repeated, domain found in bacterial type II/III secretory system proteins. All previous NolW-like domains fall into this family.	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	PF00263	Bacterial type II and III secretion system protein (Secretin)	Bacterial type II and III secretion system protein	-	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, H, I, J, K, L, M, N	Type IV pilus secretin PilQ family protein	-	protein localization establishment of protein localization cellular localization nitrogen compound transport transport secretion establishment of protein localization to extracellular region export from cell protein secretion establishment of localization protein localization to extracellular region localization secretion by cell protein transport cellular macromolecule localization protein localization establishment of protein localization cellular localization nitrogen compound transport transport secretion establishment of protein localization to extracellular region export from cell protein secretion establishment of localization protein localization to extracellular region localization secretion by cell protein transport cellular macromolecule localization macromolecule localization cellular process	cell periphery cell outer membrane external encapsulating structure membrane cell envelope outer membrane 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, I, J, K, L, M, N	IPR005644	NolW-like	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	IPR004846	Type II/III secretion system, secretin-like domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	IPR038591	NolW-like superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	IPR011662	Secretin/TonB, short N-terminal domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	IPR001775	GspD/PilQ family	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	IPR004845	Type II secretion system protein GspD, conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	IPR021731	AMIN domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	IPR051808	Type IV pilus biogenesis and competence protein	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	IPR013355	Type IV pilus secretin PilQ	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, H, I, J, K, L, M, N	OPM	Transmembrane	Beta-barrel transmembrane	Outer bacterial membrane secretin	Outer bacterial membrane secretion

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	MemProtMD	Annotated as membrane protein by MemProtMD

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, H, I, J, K, L, M, N	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Type IV Secretion Systems	PilQ Type IV competence pilus secretin