Annotations: 1C2O

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1c2oa_	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Acetylcholinesterase-like	Acetylcholinesterase	(Electrophorus electricus ) [TaxId: 8005 ],	SCOPe (2.08)
D	d1c2od_	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Acetylcholinesterase-like	Acetylcholinesterase	(Electrophorus electricus ) [TaxId: 8005 ],	SCOPe (2.08)
C	d1c2oc_	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Acetylcholinesterase-like	Acetylcholinesterase	(Electrophorus electricus ) [TaxId: 8005 ],	SCOPe (2.08)
B	d1c2ob_	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Acetylcholinesterase-like	Acetylcholinesterase	(Electrophorus electricus ) [TaxId: 8005 ],	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	8042208	3000102	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	alpha/beta-Hydrolases	8042208	3000102	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	alpha/beta-Hydrolases	8042208	3000102	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	alpha/beta-Hydrolases	8042208	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	Esterase	e1c2oA1	A: alpha bundles	X: HTH	H: HTH	T: winged helix domain	F: Esterase	ECOD (develop294)
D	Esterase	e1c2oD1	A: alpha bundles	X: HTH	H: HTH	T: winged helix domain	F: Esterase	ECOD (develop294)
C	Esterase	e1c2oC1	A: alpha bundles	X: HTH	H: HTH	T: winged helix domain	F: Esterase	ECOD (develop294)
B	Esterase	e1c2oB1	A: alpha bundles	X: HTH	H: HTH	T: winged helix domain	F: Esterase	ECOD (develop294)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	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, B, C, D	ACETYLCHOLINESTERASE	hydrolase activity catalytic activity extracellular matrix binding binding protein binding laminin binding hydrolase activity, acting on ester bonds cholinesterase activity carboxylic ester hydrolase activity identical protein binding acetylcholinesterase activity cation binding acetylcholine binding ion binding hydrolase activity catalytic activity extracellular matrix binding binding protein binding laminin binding hydrolase activity, acting on ester bonds cholinesterase activity carboxylic ester hydrolase activity identical protein binding acetylcholinesterase activity cation binding acetylcholine binding ion binding small molecule binding collagen binding protein-containing complex binding protein homodimerization activity protein dimerization activity serine hydrolase activity	localization import into cell receptor internalization transport cellular process receptor-mediated endocytosis endocytosis establishment of localization vesicle-mediated transport developmental process multicellular organismal process sensory organ development eye development animal organ development localization import into cell receptor internalization transport cellular process receptor-mediated endocytosis endocytosis establishment of localization vesicle-mediated transport developmental process multicellular organismal process sensory organ development eye development animal organ development retina development in camera-type eye visual system development multicellular organism development camera-type eye development anatomical structure development sensory system development system development positive regulation of nervous system development axonogenesis regulation of cellular process cell projection organization regulation of cell differentiation regulation of neurogenesis neuron projection development regulation of cell development positive regulation of developmental process cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation positive regulation of cell projection organization regulation of biological process regulation of cell projection organization positive regulation of cell development nervous system development generation of neurons positive regulation of multicellular organismal process regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization cellular developmental process regulation of developmental process plasma membrane bounded cell projection morphogenesis positive regulation of biological process cell development cell morphogenesis cellular component organization regulation of nervous system development neurogenesis positive regulation of cell differentiation regulation of axonogenesis positive regulation of neurogenesis regulation of multicellular organismal process cellular component organization or biogenesis positive regulation of axonogenesis regulation of anatomical structure morphogenesis positive regulation of cellular process regulation of multicellular organismal development plasma membrane bounded cell projection organization biological regulation axon development cell morphogenesis involved in neuron differentiation anatomical structure morphogenesis neuron development regulation of plasma membrane bounded cell projection organization cell adhesion choline metabolic process metabolic process acetylcholine metabolic process cellular response to nitrogen compound cellular response to stimulus cellular response to acetylcholine response to stimulus signaling response to oxygen-containing compound cell-cell signaling response to nitrogen compound acetylcholine receptor signaling pathway postsynaptic signal transduction cellular response to oxygen-containing compound cell communication cellular response to chemical stimulus synaptic signaling response to chemical response to acetylcholine signal transduction cellular component biogenesis cell junction organization cellular component assembly cell junction assembly synapse organization synapse assembly regulation of signaling regulation of receptor recycling regulation of macromolecule metabolic process receptor recycling receptor metabolic process macromolecule metabolic process regulation of metabolic process osteoblast development ossification osteoblast differentiation catabolic process acetylcholine catabolic process homeostatic process adaptive thermogenesis multicellular organismal-level homeostasis regulation of cold-induced thermogenesis cold-induced thermogenesis temperature homeostasis positive regulation of cold-induced thermogenesis response to hormone response to endogenous stimulus response to peptide hormone response to insulin regulation of cell morphogenesis regulation of dendrite morphogenesis positive regulation of cell morphogenesis regulation of dendrite development dendrite development positive regulation of dendrite morphogenesis dendrite morphogenesis	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane membrane-bounded organelle intracellular organelle organelle envelope intracellular anatomical structure cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane membrane-bounded organelle intracellular organelle organelle envelope intracellular anatomical structure organelle nuclear envelope nucleus intracellular membrane-bounded organelle endomembrane system basement membrane extracellular matrix external encapsulating structure presynapse presynaptic membrane synaptic cleft extracellular region somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection neuromuscular junction side of membrane Golgi apparatus cytoplasm membrane-enclosed lumen intracellular organelle lumen endoplasmic reticulum lumen organelle lumen endoplasmic reticulum perinuclear region of cytoplasm cell body neuronal cell body axon extracellular space cell surface membrane microdomain membrane raft

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR050654	Acetylcholinesterase-related enzymes	Family
A, B, C, D	IPR000997	Cholinesterase	Family
A, B, C, D	IPR002018	Carboxylesterase, type B	Domain
A, B, C, D	IPR019819	Carboxylesterase type B, conserved site	Conserved Site
A, B, C, D	IPR019826	Carboxylesterase type B, active site	Active Site
A, B, C, D	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily
A, B, C, D	IPR014788	Acetylcholinesterase, tetramerisation domain	Domain

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.