5I8R

aSMase with zinc

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	SapB_1	e5i8rA1	A: alpha arrays	X: Saposin-like	H: Saposin-like (From Topology)	T: Saposin-like	F: SapB_1	ECOD (1.6)
A	PhoD_1	e5i8rA2	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: Metallo-dependent phosphatases (From Topology)	T: Metallo-dependent phosphatases	F: PhoD_1	ECOD (1.6)
B	SapB_1	e5i8rB2	A: alpha arrays	X: Saposin-like	H: Saposin-like (From Topology)	T: Saposin-like	F: SapB_1	ECOD (1.6)
B	PhoD_1	e5i8rB1	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: Metallo-dependent phosphatases (From Topology)	T: Metallo-dependent phosphatases	F: PhoD_1	ECOD (1.6)
C	SapB_1	e5i8rC1	A: alpha arrays	X: Saposin-like	H: Saposin-like (From Topology)	T: Saposin-like	F: SapB_1	ECOD (1.6)
C	PhoD_1	e5i8rC2	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: Metallo-dependent phosphatases (From Topology)	T: Metallo-dependent phosphatases	F: PhoD_1	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00149	Calcineurin-like phosphoesterase (Metallophos)	Calcineurin-like phosphoesterase	This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or ...	This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or yeast MRE11 Swiss:P32829. The most conserved regions in this superfamily centre around the metal chelating residues.	Domain
A, B, C	PF19272	Acid sphingomyelin phosphodiesterase C-terminal region (ASMase_C)	Acid sphingomyelin phosphodiesterase C-terminal region	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Sphingomyelin phosphodiesterase	hydrolase activity, acting on glycosyl bonds hydrolase activity catalytic activity sphingomyelin phosphodiesterase activity phosphoric ester hydrolase activity acid sphingomyelin phosphodiesterase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity carboxylic ester hydrolase activity phospholipase activity lipase activity phosphatidylcholine phospholipase C activity phospholipase C activity cation binding hydrolase activity, acting on glycosyl bonds hydrolase activity catalytic activity sphingomyelin phosphodiesterase activity phosphoric ester hydrolase activity acid sphingomyelin phosphodiesterase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity carboxylic ester hydrolase activity phospholipase activity lipase activity phosphatidylcholine phospholipase C activity phospholipase C activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding	response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus regulation of cellular process regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity regulation of MAP kinase activity intracellular signal transduction negative regulation of cellular metabolic process regulation of primary metabolic process response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus regulation of cellular process regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity regulation of signal transduction regulation of transferase activity regulation of MAP kinase activity intracellular signal transduction negative regulation of cellular metabolic process regulation of primary metabolic process cell communication negative regulation of kinase activity negative regulation of transferase activity regulation of phosphate metabolic process phosphate-containing compound metabolic process intracellular signaling cassette negative regulation of protein modification process signal transduction phosphorus metabolic process protein modification process negative regulation of protein metabolic process regulation of biological process protein phosphorylation phosphorylation cellular metabolic process regulation of protein metabolic process negative regulation of metabolic process regulation of cellular metabolic process primary metabolic process regulation of MAPK cascade regulation of molecular function regulation of kinase activity regulation of response to stimulus negative regulation of protein phosphorylation regulation of protein serine/threonine kinase activity macromolecule modification regulation of phosphorus metabolic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of protein modification process regulation of protein phosphorylation signaling negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of phosphate metabolic process negative regulation of cell communication regulation of intracellular signal transduction negative regulation of protein serine/threonine kinase activity negative regulation of cellular process protein metabolic process negative regulation of macromolecule metabolic process regulation of signaling negative regulation of response to stimulus biological regulation negative regulation of molecular function negative regulation of MAP kinase activity regulation of protein kinase activity regulation of macromolecule metabolic process negative regulation of protein kinase activity negative regulation of signal transduction negative regulation of phosphorus metabolic process MAPK cascade regulation of cell communication regulation of phosphorylation cellular process negative regulation of phosphorylation negative regulation of MAPK cascade ceramide metabolic process membrane lipid metabolic process sphingolipid biosynthetic process cellular biosynthetic process lipid biosynthetic process amide biosynthetic process sphingolipid metabolic process biosynthetic process ceramide biosynthetic process cellular lipid metabolic process amide metabolic process membrane lipid biosynthetic process lipid metabolic process biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction positive regulation of programmed cell death regulation of apoptotic process positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process programmed cell death positive regulation of cellular process response to peptide response to cytokine response to interleukin-1 termination of signal transduction secondary alcohol metabolic process organic hydroxy compound metabolic process sterol metabolic process steroid metabolic process cholesterol metabolic process alcohol metabolic process small molecule metabolic process cellular response to metal ion cellular response to chemical stimulus response to metal ion cellular response to calcium ion response to calcium ion immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus response to type I interferon response to ionizing radiation response to radiation response to abiotic stimulus sphingolipid catabolic process catabolic process sphingomyelin catabolic process phospholipid catabolic process organophosphate catabolic process cellular lipid catabolic process cellular catabolic process phospholipid metabolic process sphingomyelin metabolic process lipid catabolic process membrane lipid catabolic process organophosphate metabolic process response to light stimulus cellular response to radiation response to UV cellular response to environmental stimulus cellular response to light stimulus cellular response to abiotic stimulus cellular response to UV developmental process multicellular organism development multicellular organismal process anatomical structure development nervous system development system development carbohydrate derivative catabolic process glycosphingolipid catabolic process glycolipid metabolic process glycosphingolipid metabolic process liposaccharide metabolic process carbohydrate derivative metabolic process glycolipid catabolic process wound healing response to wounding response to virus positive regulation of viral life cycle positive regulation of viral process modulation by symbiont of entry into host regulation of viral entry into host cell regulation of viral life cycle regulation of viral process positive regulation of viral entry into host cell positive regulation by symbiont of entry into host regulation of biological process involved in symbiotic interaction membrane organization plasma membrane repair cellular component organization plasma membrane organization cellular component organization or biogenesis endomembrane system organization regulation of localization import into cell positive regulation of cellular component organization regulation of cellular component organization regulation of transport transport regulation of vesicle-mediated transport establishment of localization vesicle-mediated transport localization positive regulation of endocytosis positive regulation of transport endocytosis regulation of endocytosis response to oxygen-containing compound response to nitrogen compound response to organic cyclic compound response to cocaine response to alkaloid response to tumor necrosis factor	membrane-bounded organelle intracellular anatomical structure lytic vacuole membrane-enclosed lumen vacuolar lumen vacuole cellular anatomical entity intracellular membrane-bounded organelle lysosomal lumen intracellular organelle lumen intracellular organelle organelle lumen organelle cytoplasm membrane-bounded organelle intracellular anatomical structure lytic vacuole membrane-enclosed lumen vacuolar lumen vacuole cellular anatomical entity intracellular membrane-bounded organelle lysosomal lumen intracellular organelle lumen intracellular organelle organelle lumen organelle cytoplasm lysosome extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle intracellular vesicle endomembrane system lamellar body cytoplasmic vesicle secretory granule secretory vesicle endosome endolysosome cell periphery plasma membrane membrane lipid droplet intracellular non-membrane-bounded organelle non-membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR011160	Sphingomyelin phosphodiesterase	Family
A, B, C	IPR011001	Saposin-like	Homologous Superfamily
A, B, C	IPR041805	Acid sphingomyelinase/endopolyphosphatase, metallophosphatase domain	Domain
A, B, C	IPR045473	Sphingomyelin phosphodiesterase, C-terminal domain	Domain
A, B, C	IPR004843	Calcineurin-like phosphoesterase domain, ApaH type	Domain
A, B, C	IPR029052	Metallo-dependent phosphatase-like	Homologous Superfamily
A, B, C	IPR008139	Saposin B type domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C	Pharos: P17405	Niemann-Pick disease Niemann-Pick disease type A Niemann-Pick disease type B Neoplasm Invasiveness kidney disease ovarian cancer cholestasis histiocytosis inborn errors of metabolism large cell medulloblastoma pancreatic ductal adenocarcinoma hydrops fetalis intellectual disability lysosomal storage disease neurodegenerative disease Niemann-Pick disease Niemann-Pick disease type A Niemann-Pick disease type B Neoplasm Invasiveness kidney disease ovarian cancer cholestasis histiocytosis inborn errors of metabolism large cell medulloblastoma pancreatic ductal adenocarcinoma hydrops fetalis intellectual disability lysosomal storage disease neurodegenerative disease non-Langerhans cell histiocytosis sphingolipidosis glioblastoma malignant mesothelioma neuronal ceroid lipofuscinosis 6

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 R01GM133198.