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8.B.39.1.1
Conotoxin im23.3 of 70 aas and 1 TMS.  It is a neurotoxin that induces excitatory symptoms in mice following intracranial administration (Ye et al. 2012). The 3-d structure of a 42 aa seqence from a similar conotoxin, conotoxin im17.a from the same organism, has been solved (PDB acc# 2LMZ).

Accession Number:D0PX86
Protein Name:Conotoxin im23.3
Length:70
Molecular Weight:7825.00
Species:Conus imperialis (Imperial cone) [35631]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Secreted1
Substrate

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MIMRMTLTLF VLVVMTAASA SGDALTEAKR IPYCGQTGAE CYSWCKEQHL IRCCDFVKYV 
61:	GMNPPADKCR