Annotations: 6XYS

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d6xysa_	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Acetylcholinesterase-like	Acetylcholinesterase	Fruit fly (Drosophila melanogaster ) [TaxId: 7227 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	alpha/beta-Hydrolases	8032483	3000102	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	COesterase	e6xysA1	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: COesterase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00135	Carboxylesterase family (COesterase)	Carboxylesterase family	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Acetylcholinesterase	hydrolase activity, acting on ester bonds cholinesterase activity carboxylic ester hydrolase activity hydrolase activity catalytic activity acetylcholinesterase activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity sulfate binding ion binding anion binding hydrolase activity, acting on ester bonds cholinesterase activity carboxylic ester hydrolase activity hydrolase activity catalytic activity acetylcholinesterase activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity sulfate binding ion binding anion binding sulfur compound binding small molecule binding serine hydrolase activity	acetate ester metabolic process organic substance metabolic process catabolic process acetylcholine catabolic process acetylcholine metabolic process metabolic process organic substance catabolic process trans-synaptic signaling regulation of biological process signaling biological regulation cell-cell signaling acetylcholine catabolic process in synaptic cleft chemical synaptic transmission acetate ester metabolic process organic substance metabolic process catabolic process acetylcholine catabolic process acetylcholine metabolic process metabolic process organic substance catabolic process trans-synaptic signaling regulation of biological process signaling biological regulation cell-cell signaling acetylcholine catabolic process in synaptic cleft chemical synaptic transmission cell communication synaptic signaling anterograde trans-synaptic signaling synaptic transmission, cholinergic cellular process ammonium ion metabolic process choline metabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process cellular biogenic amine catabolic process choline catabolic process amine metabolic process amine catabolic process	membrane cellular anatomical entity side of membrane synapse cell junction cell periphery plasma membrane synaptic cleft extracellular region intracellular anatomical structure cytoplasm extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR019826	Carboxylesterase type B, active site	Active Site
A	IPR000997	Cholinesterase	Family
A	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily
A	IPR002018	Carboxylesterase, type B	Domain
A	IPR019819	Carboxylesterase type B, conserved site	Conserved Site
A	IPR001445	Acetylcholinesterase, insect	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.