Annotations: 4C18

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF21643	e4c18A1	A: alpha arrays	X: S15/NS1 RNA-binding domain (From Topology)	H: S15/NS1 RNA-binding domain (From Topology)	T: S15/NS1 RNA-binding domain	F: PF21643	ECOD (1.6)
B	PF21643	e4c18B1	A: alpha arrays	X: S15/NS1 RNA-binding domain (From Topology)	H: S15/NS1 RNA-binding domain (From Topology)	T: S15/NS1 RNA-binding domain	F: PF21643	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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

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

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.