ID   INS_TRADO               Reviewed;          51 AA.
AC   P69047; P31887;
DT   01-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-2005, sequence version 1.
DT   25-MAY-2022, entry version 61.
DE   RecName: Full=Insulin;
DE   Contains:
DE     RecName: Full=Insulin B chain;
DE   Contains:
DE     RecName: Full=Insulin A chain;
GN   Name=INS;
OS   Trachemys dorbigni (Black-bellied slider turtle) (Chrysemys dorbigni).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Archelosauria; Testudinata; Testudines; Cryptodira; Durocryptodira;
OC   Testudinoidea; Emydidae; Trachemys.
OX   NCBI_TaxID=31137;
RN   [1]
RP   PROTEIN SEQUENCE.
RX   PubMed=1808015; DOI=10.1016/0016-6480(91)90081-g;
RA   Cascone O., Turyn D., Dellacha J.M., Machado V.L.A., Marques M., Vita N.,
RA   Cassan C., Ferrara P., Guillemot J.-C.;
RT   "Isolation, purification and primary structure of insulin from the turtle
RT   Chrysemys dorbigni.";
RL   Gen. Comp. Endocrinol. 84:355-359(1991).
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   PIR; A61129; A61129.
DR   AlphaFoldDB; P69047; -.
DR   SMR; P69047; -.
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_0000015795"
FT   PEPTIDE         31..51
FT                   /note="Insulin A chain"
FT                   /id="PRO_0000015796"
FT   DISULFID        7..37
FT                   /note="Interchain (between B and A chains)"
FT                   /evidence="ECO:0000250"
FT   DISULFID        19..50
FT                   /note="Interchain (between B and A chains)"
FT                   /evidence="ECO:0000250"
FT   DISULFID        36..41
FT                   /evidence="ECO:0000250"
FT   NON_CONS        30..31
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   51 AA;  5698 MW;  976EFAE8987D40DD CRC64;
     AANQHLCGSH LVEALYLVCG ERGFFYSPKA GIVEQCCHNT CSLYQLENYC N