ID   TKU1_UREUN              Reviewed;          10 AA.
AC   P40751;
DT   01-FEB-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1995, sequence version 1.
DT   22-APR-2020, entry version 41.
DE   RecName: Full=Urechistachykinin-1;
DE   AltName: Full=Urechistachykinin I;
OS   Urechis unicinctus (Fat innkeeper worm) (Chinese penis fish).
OC   Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Annelida; Polychaeta;
OC   Echiura; Xenopneusta; Urechidae; Urechis.
OX   NCBI_TaxID=6432;
RN   [1]
RP   PROTEIN SEQUENCE, AMIDATION AT ARG-10, AND SYNTHESIS.
RC   TISSUE=Ventral nerve cord;
RX   PubMed=8476410; DOI=10.1006/bbrc.1993.1373;
RA   Ikeda T., Minakata H., Nomoto K., Kubota I., Muneoka Y.;
RT   "Two novel tachykinin-related neuropeptides in the echiuroid worm, Urechis
RT   unicinctus.";
RL   Biochem. Biophys. Res. Commun. 192:1-6(1993).
CC   -!- FUNCTION: Contractile action on the inner circular body-wall muscle of
CC       the animal.
CC   -!- SUBCELLULAR LOCATION: Secreted.
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DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0007218; P:neuropeptide signaling pathway; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Amidation; Direct protein sequencing; Neuropeptide; Secreted.
FT   PEPTIDE         1..10
FT                   /note="Urechistachykinin-1"
FT                   /id="PRO_0000044446"
FT   MOD_RES         10
FT                   /note="Arginine amide"
FT                   /evidence="ECO:0000269|PubMed:8476410"
SQ   SEQUENCE   10 AA;  1177 MW;  C6D1C462C9D6C5A6 CRC64;
     LRQSQFVGSR