Annotations: 3ISY

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	BsuPI	e3isyA1	A: alpha arrays	X: Spectrin repeat-like	H: DNA clamp	T: DNA clamp	F: BsuPI	ECOD (v295.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.2360	Mainly Beta	Sandwich	Immunoglobulin-like	Intracellular proteinase inhibitor BsuPI	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A	PF12690	Intracellular proteinase inhibitor (BsuPI)	Intracellular proteinase inhibitor	This is a bacterial domain which has been named BsuPI in Bacillus subtilis. This domain is found in Swiss:P39804, where it has been suggested to regulate the major intracellular proteinase (ISP-1) activity in vivo [1]. The structure of proteins in ...	This is a bacterial domain which has been named BsuPI in Bacillus subtilis. This domain is found in Swiss:P39804, where it has been suggested to regulate the major intracellular proteinase (ISP-1) activity in vivo [1]. The structure of proteins in this family adopt an Ig-like fold [2].	Domain