Detail Information for IndEnz0010000199
IED ID IndEnz0010000199
Enzyme Type ID esterase000199
Protein Name Acetylcholinesterase
AChE
EC 3.1.1.7
Fragments
Gene Name ACHE
Organism Naja oxiana (Central Asian cobra) (Oxus cobra)
Taxonomic Lineage cellular organisms Eukaryota Opisthokonta Metazoa Eumetazoa Bilateria Deuterostomia Chordata Craniata Vertebrata Gnathostomata (jawed vertebrates) Teleostomi Euteleostomi Sarcopterygii Dipnotetrapodomorpha Tetrapoda Amniota Sauropsida Sauria (diapsids) Lepidosauria (lepidosaurs) Squamata (squamates) Bifurcata (split-tongued squamates) Unidentata Episquamata Toxicofera Serpentes (snakes) Colubroidea Elapidae Elapinae Naja Naja oxiana (Central Asian cobra) (Oxus cobra)
Enzyme Sequence SELKVATQTGFVRGLSLPVLAGHVSAHLGVPFAEPFLRPEPVKPGAEMWNPNLNIWVPSGRVGAFXFLTVTLFGESAGAASVGMXLLSTQRAILQSGAPNAPWAQVQPAESRFPFVPVIDGEFFPLGVNKDEGSFGVPGFSKXXESLINQAVPHANDIYTDWQDQDNGGLPLTGNPTXPHN
Enzyme Length 181
Uniprot Accession Number Q7LZG1
Absorption
Active Site ACT_SITE 76; /note=Acyl-ester intermediate; /evidence=ECO:0000255|PROSITE-ProRule:PRU10039; ACT_SITE 132; /note=Charge relay system; /evidence=ECO:0000250
Activity Regulation
Binding Site
Calcium Binding
catalytic Activity CATALYTIC ACTIVITY: Reaction=acetylcholine + H2O = acetate + choline + H(+); Xref=Rhea:RHEA:17561, ChEBI:CHEBI:15354, ChEBI:CHEBI:15355, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30089; EC=3.1.1.7; Evidence={ECO:0000250|UniProtKB:Q92035};
DNA Binding
EC Number 3.1.1.7
Enzyme Function FUNCTION: In venom, its toxic role is unclear: it could result in less musculatory control by rapidly hydrolyzing acetylcholine, or that it works synergistically with alkaline phosphatase (ALP) in paralyzing prey through hypotension. In muscle, it terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. In liver, its function is unclear: it could serve as a safeguard against any diffusion of acetylcholine from synapses into the circulation.
Temperature Dependency
PH Dependency
Pathway
nucleotide Binding
Features Active site (2); Chain (1); Non-adjacent residues (12); Non-terminal residue (2); Region (1)
Keywords Cell junction;Cell membrane;Direct protein sequencing;Hydrolase;Membrane;Neurotransmitter degradation;Secreted;Serine esterase;Synapse;Toxin
Interact With
Induction
Subcellular Location SUBCELLULAR LOCATION: Cell junction, synapse. Secreted. Cell membrane {ECO:0000250}; Peripheral membrane protein {ECO:0000250}.
Modified Residue
Post Translational Modification PTM: The N-terminus is blocked. {ECO:0000250}.
Signal Peptide
Structure 3D
Cross Reference PDB -
Mapped Pubmed ID -
Motif
Gene Encoded By
Mass 19,255
Kinetics
Metal Binding
Rhea ID RHEA:17561
Cross Reference Brenda