Annotations: 3FD9

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	ExsD-like	8092999	3002657	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	ExsD-like	8092999	3002657	SCOP2B (2022-06-29)
C	SCOP2 Family	ExsD-like	8046167	4004924	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	ExsD-like	8092999	3002657	SCOP2 (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	ExsD_1st	e3fd9A1	A: alpha arrays	X: KorB C-terminal domain-like	H: N-terminal domain in transcriptional anti-activator ExsD (From Topology)	T: N-terminal domain in transcriptional anti-activator ExsD	F: ExsD_1st	ECOD (1.6)
A	ExsD_3rd	e3fd9A2	A: alpha arrays	X: Middle domain in transcriptional anti-activator ExsD (From Topology)	H: Middle domain in transcriptional anti-activator ExsD (From Topology)	T: Middle domain in transcriptional anti-activator ExsD	F: ExsD_3rd	ECOD (1.6)
A	ExsD_2nd	e3fd9A3	A: alpha bundles	X: Long alpha-hairpin	H: helical hairpin domain in transcriptional anti-activator ExsD (From Topology)	T: helical hairpin domain in transcriptional anti-activator ExsD	F: ExsD_2nd	ECOD (1.6)
B	ExsD_1st	e3fd9B2	A: alpha arrays	X: KorB C-terminal domain-like	H: N-terminal domain in transcriptional anti-activator ExsD (From Topology)	T: N-terminal domain in transcriptional anti-activator ExsD	F: ExsD_1st	ECOD (1.6)
B	ExsD_3rd	e3fd9B3	A: alpha arrays	X: Middle domain in transcriptional anti-activator ExsD (From Topology)	H: Middle domain in transcriptional anti-activator ExsD (From Topology)	T: Middle domain in transcriptional anti-activator ExsD	F: ExsD_3rd	ECOD (1.6)
B	ExsD_2nd	e3fd9B1	A: alpha bundles	X: Long alpha-hairpin	H: helical hairpin domain in transcriptional anti-activator ExsD (From Topology)	T: helical hairpin domain in transcriptional anti-activator ExsD	F: ExsD_2nd	ECOD (1.6)
C	ExsD_1st	e3fd9C2	A: alpha arrays	X: KorB C-terminal domain-like	H: N-terminal domain in transcriptional anti-activator ExsD (From Topology)	T: N-terminal domain in transcriptional anti-activator ExsD	F: ExsD_1st	ECOD (1.6)
C	ExsD_3rd	e3fd9C3	A: alpha arrays	X: Middle domain in transcriptional anti-activator ExsD (From Topology)	H: Middle domain in transcriptional anti-activator ExsD (From Topology)	T: Middle domain in transcriptional anti-activator ExsD	F: ExsD_3rd	ECOD (1.6)
C	ExsD_2nd	e3fd9C1	A: alpha bundles	X: Long alpha-hairpin	H: helical hairpin domain in transcriptional anti-activator ExsD (From Topology)	T: helical hairpin domain in transcriptional anti-activator ExsD	F: ExsD_2nd	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.8.520	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
A	1.20.1270.190	Mainly Alpha	Up-down Bundle	Substrate Binding Domain Of Dnak	Chain:A	CATH (4.3.0)
A	1.10.287.1060	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	ESAT-6-like	CATH (4.3.0)
B	1.10.8.520	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
B	1.20.1270.190	Mainly Alpha	Up-down Bundle	Substrate Binding Domain Of Dnak	Chain:A	CATH (4.3.0)
B	1.10.287.1060	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	ESAT-6-like	CATH (4.3.0)
C	1.10.8.520	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
C	1.20.1270.190	Mainly Alpha	Up-down Bundle	Substrate Binding Domain Of Dnak	Chain:A	CATH (4.3.0)
C	1.10.287.1060	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	ESAT-6-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF16806	Antiactivator protein ExsD N-terminal domain (ExsD)	Antiactivator protein ExsD N-terminal domain	The antiactivator protein ExsD represses the transcriptional activator ExsA. ExsA activates expression of type III secretion system genes. Repression of ExsA by ExsD is relieved by the secretion chaperone ExsC [1].	Domain
A, B, C	PF20904	Antiactivator protein ExsD helical hairpin domain (ExsD_M)	Antiactivator protein ExsD helical hairpin domain	The antiactivator protein ExsD represses the transcriptional activator ExsA. ExsA activates expression of type III secretion system genes. Repression of ExsA by ExsD is relieved by the secretion chaperone ExsC [1].	Domain
A, B, C	PF20905	Antiactivator protein ExsD C-terminal domain (ExsD_C)	Antiactivator protein ExsD C-terminal domain	The antiactivator protein ExsD represses the transcriptional activator ExsA. ExsA activates expression of type III secretion system genes. Repression of ExsA by ExsD is relieved by the secretion chaperone ExsC [1].	Domain

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR048312	Antiactivator protein ExsD, C-terminal domain	Domain
A, B, C	IPR048311	Antiactivator protein ExsD, helical hairpin domain	Domain
A, B, C	IPR043101	Antiactivator protein ExsD, domain 1	Homologous Superfamily
A, B, C	IPR031835	Antiactivator protein ExsD, N-terminal domain	Domain

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.