Annotations: 5AKO

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PI3_PI4_kinase	e5akoB1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like	T: Restriction endonuclease-like	F: PI3_PI4_kinase	ECOD (v294.1)
A	PI3_PI4_kinase	e5akoA1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like	T: Restriction endonuclease-like	F: PI3_PI4_kinase	ECOD (v294.1)
D	ADPRTs_Tse2	e5akoD1	A: a/b three-layered sandwiches	X: ADP-ribosylation	H: ADP-ribosylation	T: ADP-ribosylation	F: ADPRTs_Tse2	ECOD (v294.1)
C	Sec63	e5akoC1	A: a/b three-layered sandwiches	X: ADP-ribosylation	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Sec63	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.287.2500	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
A	1.10.287.2500	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF21643	T6SS, Immune protein Tsi2-like (T6SS_Tsi2-like)	T6SS, Immune protein Tsi2-like	-	Family
C, D	PF18648	Tse2 ADP-ribosyltransferase toxin (ADPRTs_Tse2)	Tse2 ADP-ribosyltransferase toxin	Tse2 from P. aeruginosa has structural features similar to ADP-ribosylating toxins. It is a cytoactive toxin secreted by a type six secretion apparatus of Pseudomonas aeruginosa and found mostly in gamma proteobacteria. It naturally attacks a target ...	Tse2 from P. aeruginosa has structural features similar to ADP-ribosylating toxins. It is a cytoactive toxin secreted by a type six secretion apparatus of Pseudomonas aeruginosa and found mostly in gamma proteobacteria. It naturally attacks a target in the cytoplasm of bacterial cells. Structural analysis shows similarity between Tse2 and nicotinamide adenine dinucleotide (NAD)-dependent enzymes from bacteria, notably the mono-ADP-ribosyltransferase toxins (ADPRTs). Furthermore, it revealed that the Tse2 active site is occluded upon binding the cognate immunity protein Tsi2. The abrogation of toxicity for the R14A, S80A, and H122A mutant Tse2 proteins indicates the importance of these amino acids in the mechanism of Tse2 toxicity and, given their conservation with NAD-reactive enzymes, also supports their assignment as being involved in a catalytic reaction [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	TSI2	-	-	-
C, D	TSE2	-	-	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR049070	T6SS, Immune protein Tsi2-like	Family
A, B	IPR033783	Tse2 immunity protein Tsi2	Family
A, B	IPR053756	Toxin-specific immunity effector	Homologous Superfamily
C, D	IPR041018	Tse2 ADP-ribosyltransferase toxin	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.