Annotations: 4UID

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Big_2	e4uidA2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Big_2	ECOD (1.6)
A	BID_2_like_1	e4uidA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: BID_2_like_1	ECOD (1.6)
B	Big_2	e4uidB2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Big_2	ECOD (1.6)
B	BID_2_like_1	e4uidB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: BID_2_like_1	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B	PF22359	Bacterial Ig-like domain (Big-like)	Bacterial Ig-like domain	This entry represents bacterial domains that are structurally similar to an immunoglobulin-like domain of intimins. Members of this family include Beta-xylanase from the uncultured bacterium 35A30 [1].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	SURFACE LAYER PROTEIN	cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding	-	-

Chains	Accession	Name	Type
A, B	IPR041378	SbsC C-terminal domain	Domain
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR014755	Copper resistance protein CopC/internalin, immunoglobulin-like	Homologous Superfamily
A, B	IPR032812	SbsA, Ig-like domain	Domain
A, B	IPR003343	Bacterial Ig-like domain, group 2	Domain
A, B	IPR040751	S-layer protein SbsC, C-terminal domain	Domain