4QO6

Structural studies of CdsD, a structural protein of the Type III secretion system (TTSS) of Chlamydia trachomatis

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	BON domain-like	8092169	3002566	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	BON domain-like	8092173	3002566	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	BON domain-like	8092171	3002566	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	F_UNCLASSIFIED	e4qo6A1	A: a+b two layers	X: amino-terminal domain of OmpATb (From Topology)	H: amino-terminal domain of OmpATb (From Topology)	T: amino-terminal domain of OmpATb	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF04972	e4qo6A3	A: a+b two layers	X: amino-terminal domain of OmpATb (From Topology)	H: amino-terminal domain of OmpATb (From Topology)	T: amino-terminal domain of OmpATb	F: PF04972	ECOD (1.6)
A	PF22598	e4qo6A2	A: a+b two layers	X: amino-terminal domain of OmpATb (From Topology)	H: amino-terminal domain of OmpATb (From Topology)	T: amino-terminal domain of OmpATb	F: PF22598	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF22598	CdsD, periplasmic PD2 domain (CdsD_PD2)	CdsD, periplasmic PD2 domain	This domain is found in CdsD from Chlamydia trachomatis (Swiss:O84671) and similar sequences from Chlamydiia. CdsD is a structural contact-dependent secretion (Cds) protein that form part of the basal body of the type III secretion system (T3SS) inje ...	This domain is found in CdsD from Chlamydia trachomatis (Swiss:O84671) and similar sequences from Chlamydiia. CdsD is a structural contact-dependent secretion (Cds) protein that form part of the basal body of the type III secretion system (T3SS) injectisome of the bacteria. The periplasmic part of this protein contains at least 3 domains: PD1, PD2 (this entry) and PD3 (Pfam:PF04972), all of them sharing the same alpha-beta-beta-alpha-beta topology, known as the BON fold, in which the two antiparallel alpha-helices are on the same side of a three stranded beta-sheet [1,2].	Domain
A	PF04972	BON domain (BON)	BON domain	This domain is found in a family of osmotic shock protection proteins (e.g. Swiss:P27291). It is also found in some Secretins and a group of potential haemolysins. Its likely function is attachment to phospholipid membranes [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Adenylate cyclase-like protein	RNA binding binding organic cyclic compound binding nucleic acid binding mRNA binding	-	membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012843	Type III secretion system YscD/HrpQ	Family
A	IPR007055	BON domain	Domain
A	IPR008984	SMAD/FHA domain superfamily	Homologous Superfamily
A	IPR032030	YscD, cytoplasmic domain	Domain
A	IPR000253	Forkhead-associated (FHA) 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 R01GM133198.