ID   ANP5_MYOAE              Reviewed;          33 AA.
AC   P20421;
DT   01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1991, sequence version 1.
DT   25-MAY-2022, entry version 50.
DE   RecName: Full=Ice-structuring protein GS-5;
DE            Short=ISP GS-5;
DE   AltName: Full=Antifreeze peptide GS-5;
OS   Myoxocephalus aenaeus (Grubby sculpin) (Cottus aenaeus).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC   Eupercaria; Perciformes; Cottioidei; Cottales; Cottidae; Myoxocephalus.
OX   NCBI_TaxID=8096;
RN   [1]
RP   PROTEIN SEQUENCE.
RA   Chakrabartty A., Hew C.-L., Shears M., Fletcher G.;
RT   "Primary structures of the alanine-rich antifreeze polypeptides from grubby
RT   sculpin, Myoxocephalus aenaeus.";
RL   Can. J. Zool. 66:403-408(1988).
CC   -!- FUNCTION: Antifreeze proteins lower the blood freezing point.
CC   -!- SIMILARITY: Belongs to the type-I AFP family. {ECO:0000305}.
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DR   PIR; S06417; FDFI5G.
DR   AlphaFoldDB; P20421; -.
DR   SMR; P20421; -.
PE   1: Evidence at protein level;
KW   Antifreeze protein; Direct protein sequencing; Repeat.
FT   CHAIN           1..33
FT                   /note="Ice-structuring protein GS-5"
FT                   /id="PRO_0000155146"
FT   MOD_RES         1
FT                   /note="Blocked amino end (Met)"
SQ   SEQUENCE   33 AA;  2980 MW;  7F2ACC56B70A2080 CRC64;
     MDAPAIAAAK TAADALAAAK KTAADAAAAA AKP