ID   A0A8B9QKW2_APTOW        Unreviewed;       135 AA.
AC   A0A8B9QKW2;
DT   19-JAN-2022, integrated into UniProtKB/TrEMBL.
DT   19-JAN-2022, sequence version 1.
DT   28-JAN-2026, entry version 17.
DE   SubName: Full=Retinol binding protein 2 {ECO:0000313|Ensembl:ENSAOWP00000026056.1};
OS   Apteryx owenii (Little spotted kiwi).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC   Coelurosauria; Aves; Palaeognathae; Apterygiformes; Apterygidae; Apteryx.
OX   NCBI_TaxID=8824 {ECO:0000313|Ensembl:ENSAOWP00000026056.1, ECO:0000313|Proteomes:UP000694424};
RN   [1] {ECO:0000313|Ensembl:ENSAOWP00000026056.1}
RP   IDENTIFICATION.
RG   Ensembl;
RL   Submitted (AUG-2025) to UniProtKB.
RN   [2] {ECO:0000313|Ensembl:ENSAOWP00000026056.1}
RP   IDENTIFICATION.
RG   Ensembl;
RL   Submitted (SEP-2025) to UniProtKB.
CC   -!- SIMILARITY: Belongs to the calycin superfamily. Fatty-acid binding
CC       protein (FABP) family. {ECO:0000256|ARBA:ARBA00008390,
CC       ECO:0000256|RuleBase:RU003696}.
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DR   AlphaFoldDB; A0A8B9QKW2; -.
DR   Ensembl; ENSAOWT00000029523.1; ENSAOWP00000026056.1; ENSAOWG00000017580.1.
DR   Proteomes; UP000694424; Unplaced.
DR   GO; GO:0008289; F:lipid binding; IEA:InterPro.
DR   FunFam; 2.40.128.20:FF:000001; Fatty acid-binding protein, adipocyte; 1.
DR   Gene3D; 2.40.128.20; -; 1.
DR   InterPro; IPR012674; Calycin.
DR   InterPro; IPR000463; Fatty_acid-bd.
DR   InterPro; IPR031259; ILBP.
DR   InterPro; IPR000566; Lipocln_cytosolic_FA-bd_dom.
DR   PANTHER; PTHR11955; FATTY ACID BINDING PROTEIN; 1.
DR   Pfam; PF00061; Lipocalin; 1.
DR   PRINTS; PR00178; FATTYACIDBP.
DR   SUPFAM; SSF50814; Lipocalins; 1.
DR   PROSITE; PS00214; FABP; 1.
PE   3: Inferred from homology;
KW   Reference proteome {ECO:0000313|Proteomes:UP000694424};
KW   Transport {ECO:0000256|RuleBase:RU003696}.
FT   DOMAIN          7..24
FT                   /note="Cytosolic fatty-acid binding proteins"
FT                   /evidence="ECO:0000259|PROSITE:PS00214"
SQ   SEQUENCE   135 AA;  15846 MW;  5E06D81275D17842 CRC64;
     MPADYNGTWE MESNENFEGY MVALDIDFAT RKIAKHLKQT KEIIQDGDNF KTKTLSTFRN
     YEVNYTVGVE FEEHTKGLDN RVVKTLVTWD GDKLVCVQKG EKKNRGWKHW IEGDKLYLEL
     TCEDQVCLQV FKKKN
//