ID   INS_THUTH               Reviewed;          51 AA.
AC   P01339;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   25-MAY-2022, entry version 94.
DE   RecName: Full=Insulin;
DE   Contains:
DE     RecName: Full=Insulin B chain;
DE   Contains:
DE     RecName: Full=Insulin A chain;
GN   Name=ins;
OS   Thunnus thynnus (Atlantic bluefin tuna) (Scomber thynnus).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC   Pelagiaria; Scombriformes; Scombridae; Thunnus.
OX   NCBI_TaxID=8237;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=5406482; DOI=10.1111/j.1399-3011.1969.tb01634.x;
RA   Neumann P.A., Humbel R.E.;
RT   "Isolation of a single component of fish insulin from a bonito-tuna-
RT   swordfish insulin mixture and its complete amino-acid sequence.";
RL   Int. J. Protein Res. 1:125-140(1969).
CC   -!- FUNCTION: Insulin decreases blood glucose concentration. It increases
CC       cell permeability to monosaccharides, amino acids and fatty acids. It
CC       accelerates glycolysis, the pentose phosphate cycle, and glycogen
CC       synthesis in liver.
CC   -!- SUBUNIT: Heterodimer of a B chain and an A chain linked by two
CC       disulfide bonds.
CC   -!- SUBCELLULAR LOCATION: Secreted.
CC   -!- SIMILARITY: Belongs to the insulin family. {ECO:0000305}.
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DR   AlphaFoldDB; P01339; -.
DR   SMR; P01339; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR   GO; GO:0005179; F:hormone activity; IEA:UniProtKB-KW.
DR   GO; GO:0006006; P:glucose metabolic process; IEA:UniProtKB-KW.
DR   CDD; cd04367; IlGF_insulin_like; 1.
DR   InterPro; IPR004825; Insulin.
DR   InterPro; IPR016179; Insulin-like.
DR   InterPro; IPR036438; Insulin-like_sf.
DR   InterPro; IPR022353; Insulin_CS.
DR   InterPro; IPR022352; Insulin_family.
DR   PANTHER; PTHR11454; PTHR11454; 2.
DR   Pfam; PF00049; Insulin; 2.
DR   PRINTS; PR00277; INSULIN.
DR   PRINTS; PR00276; INSULINFAMLY.
DR   SMART; SM00078; IlGF; 1.
DR   SUPFAM; SSF56994; SSF56994; 1.
DR   PROSITE; PS00262; INSULIN; 1.
PE   1: Evidence at protein level;
KW   Carbohydrate metabolism; Direct protein sequencing; Disulfide bond;
KW   Glucose metabolism; Hormone; Secreted.
FT   PEPTIDE         1..30
FT                   /note="Insulin B chain"
FT                   /id="PRO_0000015919"
FT   PEPTIDE         31..51
FT                   /note="Insulin A chain"
FT                   /id="PRO_0000015920"
FT   DISULFID        8..37
FT                   /note="Interchain (between B and A chains)"
FT   DISULFID        20..50
FT                   /note="Interchain (between B and A chains)"
FT   DISULFID        36..41
FT   NON_CONS        30..31
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   51 AA;  5742 MW;  A516B9A5CBAE605A CRC64;
     VAPPQHLCGS HLVDALYLVC GDRGFFYNPK GIVEQCCHKP CNIFDLQNYC N