Annotations: 3HE1

Secreted protein Hcp3 from Pseudomonas aeruginosa.

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)
F	YgbB	e3he1F1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: YgbB	ECOD (v295.2)
E	YgbB	e3he1E1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: YgbB	ECOD (v295.2)
D	YgbB	e3he1D1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: YgbB	ECOD (v295.2)
C	YgbB	e3he1C1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: YgbB	ECOD (v295.2)
B	YgbB	e3he1B1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: YgbB	ECOD (v295.2)
A	T6SS_HCP	e3he1A1	A: alpha arrays	X: Alpha-beta plaits	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: T6SS_HCP	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
E	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
D	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
C	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
B	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	CATH (4.3.0)
A	2.30.110.20	Mainly Beta	Roll	Pnp Oxidase	Chain A	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	PF05638	Type VI secretion system effector, Hcp (T6SS_HCP)	Type VI secretion system effector, Hcp	HCP is a family of proteins which are expressed in up to 1000 copies in Gram-negative bacteria. Together these copies aggregate into a needle-like shaft or tube that will penetrate other bacteria via a puncturing protein attached to its head [1] bein ...	HCP is a family of proteins which are expressed in up to 1000 copies in Gram-negative bacteria. Together these copies aggregate into a needle-like shaft or tube that will penetrate other bacteria via a puncturing protein attached to its head [1] being part of the type VI secretion system [3,4]. Initially Hcp forms a hexameric structure with a central channel of 40 Angstroms. These hexamers pile up one on top of each other forming nanotubes resembling the gp19 tail phage tube [2].	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	Major exported Hcp3 protein	-	-	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR036624	Hcp1-like superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR052947	T6SS_Hcp1_domain	Unknown
A, B, C, D, E A, B, C, D, E, F	IPR008514	Type VI secretion system effector Hcp	Domain

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.