ID   O253_CONTE              Reviewed;          81 AA.
AC   Q3YEG0;
DT   08-FEB-2011, integrated into UniProtKB/Swiss-Prot.
DT   27-SEP-2005, sequence version 1.
DT   25-MAY-2022, entry version 42.
DE   RecName: Full=Gamma-conotoxin-like TeA53;
DE   Flags: Precursor;
OS   Conus textile (Cloth-of-gold cone).
OC   Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Mollusca; Gastropoda;
OC   Caenogastropoda; Neogastropoda; Conoidea; Conidae; Conus; Cylinder.
OX   NCBI_TaxID=6494;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RA   Luo S., Zhangsun D., Zhang B., Lin Q.;
RT   "Novel O-superfamily conotoxins, and their coding polynucleotides and
RT   use.";
RL   Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Gamma-conotoxins may act on voltage-gated non-specific cation
CC       pacemaker channels (HCN). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250}.
CC   -!- TISSUE SPECIFICITY: Expressed by the venom duct.
CC   -!- DOMAIN: The presence of a 'disulfide through disulfide knot'
CC       structurally defines this protein as a knottin. {ECO:0000250}.
CC   -!- DOMAIN: The cysteine framework is VI/VII (C-C-CC-C-C).
CC   -!- SIMILARITY: Belongs to the conotoxin O2 superfamily. {ECO:0000305}.
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DR   EMBL; DQ141153; AAZ83754.1; -; mRNA.
DR   AlphaFoldDB; Q3YEG0; -.
DR   TCDB; 8.B.16.2.2; the maurocalcine (maca) family.
DR   ConoServer; 1114; TeA53 precursor.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0008200; F:ion channel inhibitor activity; IEA:InterPro.
DR   GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
DR   InterPro; IPR004214; Conotoxin.
DR   Pfam; PF02950; Conotoxin; 1.
PE   2: Evidence at transcript level;
KW   Disulfide bond; Ion channel impairing toxin; Knottin; Neurotoxin; Secreted;
KW   Signal; Toxin.
FT   SIGNAL          1..19
FT                   /evidence="ECO:0000255"
FT   PROPEP          20..42
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000404796"
FT   PEPTIDE         43..81
FT                   /note="Gamma-conotoxin-like TeA53"
FT                   /id="PRO_0000404797"
FT   DISULFID        49..63
FT                   /evidence="ECO:0000250"
FT   DISULFID        56..67
FT                   /evidence="ECO:0000250"
FT   DISULFID        62..72
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   81 AA;  9507 MW;  F1EF4A48D5FA0D83 CRC64;
     MQKLTILLLV AAVLMSTQAL NQEQHQRAKI NLLSKRKPPA ERWWRWGGCM LWFGRCTKDS
     ECCSNSCDRT YCELARFPSD W