U6TC_CONTE
ID U6TC_CONTE Reviewed; 23 AA.
AC P58845;
DT 06-JUN-2002, integrated into UniProtKB/Swiss-Prot.
DT 06-JUN-2002, sequence version 1.
DT 25-MAY-2022, entry version 45.
DE RecName: Full=Textile convulsant peptide {ECO:0000303|Ref.1};
DE Short=TCP {ECO:0000303|PubMed:23031820};
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 PROTEIN SEQUENCE, SUBCELLULAR LOCATION, AMIDATION AT PRO-23, BIOASSAY, AND
RP FUNCTION.
RA Cruz L.J., Ramilo C.A., Corpuz G.P., Olivera B.M.;
RT "Conus peptides: phylogenetic range of biological activity.";
RL Biol. Bull. 183:159-164(1992).
RN [2]
RP IDENTIFICATION BY MASS SPECTROMETRY, AND SUBCELLULAR LOCATION.
RC TISSUE=Venom;
RX PubMed=22709442; DOI=10.1021/pr300312h;
RA Bhatia S., Kil Y.J., Ueberheide B., Chait B.T., Tayo L., Cruz L., Lu B.,
RA Yates J.R. III, Bern M.;
RT "Constrained de novo sequencing of conotoxins.";
RL J. Proteome Res. 11:4191-4200(2012).
RN [3]
RP IDENTIFICATION BY MASS SPECTROMETRY, TISSUE SPECIFICITY, POSITION IN VENOM
RP DUCT, AND AMIDATION AT PRO-23.
RC TISSUE=Venom;
RX PubMed=23031820; DOI=10.1016/j.toxicon.2012.09.013;
RA Dobson R., Collodoro M., Gilles N., Turtoi A., De Pauw E., Quinton L.;
RT "Secretion and maturation of conotoxins in the venom ducts of Conus
RT textile.";
RL Toxicon 60:1370-1379(2012).
CC -!- FUNCTION: Causes convulsions mice. {ECO:0000269|Ref.1}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000269|Ref.1}.
CC -!- TISSUE SPECIFICITY: Expressed by the venom duct. Is present in all duct
CC parts with a highest content in part 2 (proximal of the venom bulb) and
CC then decreases in concentration toward the end of the duct.
CC {ECO:0000305|PubMed:23031820, ECO:0000305|Ref.1}.
CC -!- DOMAIN: The presence of a 'disulfide through disulfide knot'
CC structurally defines this protein as a knottin. {ECO:0000305}.
CC -!- DOMAIN: The cysteine framework is VI/VII (C-C-CC-C-C).
CC {ECO:0000250|UniProtKB:Q26443}.
CC -!- PTM: The C-terminal amidation is described in Ref.1 and
CC PubMed:23031820, but not in PubMed:22709442. {ECO:0000305}.
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DR PIR; A59048; A59048.
DR AlphaFoldDB; P58845; -.
DR ConoServer; 1810; Textile convulsant peptide.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0090729; F:toxin activity; IEA:UniProtKB-KW.
PE 1: Evidence at protein level;
KW Amidation; Direct protein sequencing; Disulfide bond; Knottin; Neurotoxin;
KW Secreted; Toxin.
FT PEPTIDE 1..23
FT /note="Textile convulsant peptide"
FT /evidence="ECO:0000269|Ref.1"
FT /id="PRO_0000044487"
FT MOD_RES 23
FT /note="Proline amide; partial"
FT /evidence="ECO:0000269|PubMed:22709442,
FT ECO:0000269|PubMed:23031820, ECO:0000269|Ref.1"
FT DISULFID 2..10
FT /evidence="ECO:0000250|UniProtKB:Q26443"
FT DISULFID 5..15
FT /evidence="ECO:0000250|UniProtKB:Q26443"
FT DISULFID 9..20
FT /evidence="ECO:0000250|UniProtKB:Q26443"
SQ SEQUENCE 23 AA; 2496 MW; AE99BDBB7DC8AD56 CRC64;
NCPYCVVYCC PPAYCEASGC RPP