Annotations: 1XX1

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	P23-45_gp39_N	e1xx1D1	A: alpha arrays	X: Glycosyl hydrolase domain-like	H: alpha/alpha toroid	T: alpha/alpha toroid	F: P23-45_gp39_N	ECOD (v295.2)
C	P23-45_gp39_N	e1xx1C1	A: alpha arrays	X: Glycosyl hydrolase domain-like	H: alpha/alpha toroid	T: alpha/alpha toroid	F: P23-45_gp39_N	ECOD (v295.2)
B	P23-45_gp39_N	e1xx1B1	A: alpha arrays	X: Glycosyl hydrolase domain-like	H: alpha/alpha toroid	T: alpha/alpha toroid	F: P23-45_gp39_N	ECOD (v295.2)
A	P23-45_gp39_N	e1xx1A1	A: alpha arrays	X: Glycosyl hydrolase domain-like	H: alpha/alpha toroid	T: alpha/alpha toroid	F: P23-45_gp39_N	ECOD (v295.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.20.20.190	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Phosphatidylinositol (PI) phosphodiesterase	CATH (4.3.0)
C	3.20.20.190	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Phosphatidylinositol (PI) phosphodiesterase	CATH (4.3.0)
B	3.20.20.190	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Phosphatidylinositol (PI) phosphodiesterase	CATH (4.3.0)
A	3.20.20.190	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Phosphatidylinositol (PI) phosphodiesterase	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Sphingomyelinase I	lyase activity catalytic activity phosphoric ester hydrolase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity hydrolase activity cation binding ion binding binding metal ion binding small molecule binding toxin activity	lipid catabolic process catabolic process metabolic process cellular process primary metabolic process lipid metabolic process biological process involved in interspecies interaction between organisms disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing	cellular anatomical structure extracellular region

Chains	Accession	Name	Type
A, B, C, D	IPR017946	PLC-like phosphodiesterase, TIM beta/alpha-barrel domain superfamily	Homologous Superfamily

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D	OPM	Monotopic/peripheral	Alpha/Beta monotopic/peripheral	PLC-like phosphodiesterases	Glycerophosphoryl diester phosphodiesterase

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.

1XX1 | pdb_00001xx1