ID   OXYT_HYDCO              Reviewed;           9 AA.
AC   P69058; P01188; P32878;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   11-DEC-2019, entry version 30.
DE   RecName: Full=Oxytocin;
DE   AltName: Full=Ocytocin;
OS   Hydrolagus colliei (Spotted ratfish) (Chimaera colliei).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Chondrichthyes;
OC   Holocephali; Chimaeriformes; Chimaeridae; Hydrolagus.
OX   NCBI_TaxID=7873;
RN   [1]
RP   PROTEIN SEQUENCE, AND AMIDATION AT GLY-9.
RX   PubMed=5366118; DOI=10.1677/joe.0.0450597;
RA   Pickering B.T., Heller H.;
RT   "Oxytocin as a neurophyophysial hormone in the holocephalian elasmobranch
RT   fish, Hydrolagus collei.";
RL   J. Endocrinol. 45:597-606(1969).
CC   -!- FUNCTION: Oxytocin causes contraction of the smooth muscle of the
CC       uterus and of the mammary gland.
CC   -!- SUBCELLULAR LOCATION: Secreted.
CC   -!- SIMILARITY: Belongs to the vasopressin/oxytocin family. {ECO:0000305}.
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DR   PIR; A92774; A92774.
DR   SMR; P69058; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0005185; F:neurohypophyseal hormone activity; IEA:InterPro.
DR   InterPro; IPR022423; Neurohypophysial_hormone_CS.
DR   Pfam; PF00220; Hormone_4; 1.
DR   PROSITE; PS00264; NEUROHYPOPHYS_HORM; 1.
PE   1: Evidence at protein level;
KW   Amidation; Direct protein sequencing; Disulfide bond; Hormone; Secreted.
FT   PEPTIDE         1..9
FT                   /note="Oxytocin"
FT                   /id="PRO_0000044087"
FT   MOD_RES         9
FT                   /note="Glycine amide"
FT                   /evidence="ECO:0000269|PubMed:5366118"
FT   DISULFID        1..6
SQ   SEQUENCE   9 AA;  1010 MW;  17F8376EB456D04B CRC64;
     CYIQNCPLG