3S1E3_MICPY
ID 3S1E3_MICPY Reviewed; 27 AA.
AC P0CAR5;
DT 16-JUN-2009, integrated into UniProtKB/Swiss-Prot.
DT 16-JUN-2009, sequence version 1.
DT 25-MAY-2022, entry version 24.
DE RecName: Full=Weak neurotoxin E3;
DE Flags: Fragment;
OS Micrurus pyrrhocryptus (Coral snake).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Lepidosauria; Squamata; Bifurcata; Unidentata; Episquamata; Toxicofera;
OC Serpentes; Colubroidea; Elapidae; Elapinae; Micrurus.
OX NCBI_TaxID=129468;
RN [1]
RP PROTEIN SEQUENCE, MASS SPECTROMETRY, AND SUBCELLULAR LOCATION.
RC TISSUE=Venom;
RX PubMed=19135468; DOI=10.1016/j.toxicon.2008.12.015;
RA Dokmetjian J.C., Del Canto S., Vinzon S., de Jimenez Bonino M.B.;
RT "Biochemical characterization of the Micrurus pyrrhocryptus venom.";
RL Toxicon 53:375-382(2009).
CC -!- FUNCTION: Binds to muscle nicotinic acetylcholine receptor (nAChR) and
CC inhibit acetylcholine from binding to the receptor, thereby impairing
CC neuromuscular transmission. {ECO:0000250|UniProtKB:P60775}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000269|PubMed:19135468}.
CC -!- TISSUE SPECIFICITY: Expressed by the venom gland. {ECO:0000305}.
CC -!- MASS SPECTROMETRY: Mass=7109; Method=Electrospray;
CC Evidence={ECO:0000269|PubMed:19135468};
CC -!- SIMILARITY: Belongs to the snake three-finger toxin family. Short-chain
CC subfamily. Type I alpha-neurotoxin sub-subfamily. {ECO:0000305}.
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DR AlphaFoldDB; P0CAR5; -.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0030550; F:acetylcholine receptor inhibitor activity; IEA:UniProtKB-KW.
DR GO; GO:0099106; F:ion channel regulator activity; IEA:UniProtKB-KW.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
PE 1: Evidence at protein level;
KW Acetylcholine receptor inhibiting toxin; Direct protein sequencing;
KW Ion channel impairing toxin; Neurotoxin; Postsynaptic neurotoxin; Secreted;
KW Toxin.
FT CHAIN 1..>27
FT /note="Weak neurotoxin E3"
FT /evidence="ECO:0000269|PubMed:19135468"
FT /id="PRO_0000377751"
FT NON_TER 27
SQ SEQUENCE 27 AA; 3068 MW; 231AD14591187175 CRC64;
LICFNDFSPT ARTLEYCQIG ITTYNPS