Gene Information
Gene NameSLCO2B1
OrganismHomo sapiens (Human)
Gene Length709
Protein NamesSolute carrier organic anion transporter family member 2B1 (Organic anion transporter B) (OATP-B) (Organic anion transporter polypeptide-related protein 2) (OATP-RP2) (OATPRP2) (Organic anion transporting polypeptide 2B1) (OATP2B1) (Solute carrier family 21 member 9)
Target Nameorganic anion transporter b
Target TypeLiterature-reported target
Gene Age244 ( ENSG00000137491 )
Evolutionary StageEumetazoa
AlphaFoldDBO94956
Gene CardSLCO2B1
Uniprot IDO94956
PfamPF03137
In ASDno
Allosteric Predictionyes (0.525377664)
Ortholog in AnimalsAlpaca_ SLCO2B1 ( ortholog_one2one )
Dog_ SLCO2B1 ( ortholog_one2one )
GuineaPig_ SLCO2B1 ( ortholog_one2one )
Macaque_ SLCO2B1 ( ortholog_one2one )
Mouse_ Slco2b1 ( ortholog_one2one )
Pig_ SLCO2B1 ( ortholog_one2one )
Rat_ Slco2b1 ( ortholog_one2one )
Rabbit_ SLCO2B1 ( ortholog_one2one )
OhnologsSLCO1A2, SLCO1C1, SLCO2A1
ParalogsSLCO5A1, SLCO6A1, SLCO4C1, SLCO4A1, SLCO2A1, SLCO1B1, SLCO1B3, SLCO1C1, SLCO1A2, SLCO3A1
TissueNA
Tissue SpecificityStrongly expressed in the liver, at the sinusoidal membrane of the hepatocytes (PubMed:10873595, PubMed:11159893, PubMed:23531488). Expressed in the kidney (PubMed:11159893). Expressed in placental trophoblasts and syncytiotrophoblast (PubMed:11159893, PubMed:11932330, PubMed:12409283, PubMed:26277985). Expressed in the small intestine (PubMed:10873595, PubMed:11159893, PubMed:12724351, PubMed:23531488). Expressed in the blood-brain barrier, in endothelial cells of brain capillaries (PubMed:11159893, PubMed:25132355). Expressed in the retina, in the inner nuclear layer and the inner plexiform layer (PubMed:25132355). Expressed in skelettal muscles (PubMed:23531488). Expressed in pancreas, lung, heart, colon, ovary, testis and spleen (PubMed:10873595, PubMed:11159893). Expressed in fetal brain, heart, kidney, liver, lung, skeletal muscle, spleen and pancreas (PubMed:10873595). {ECO:0000269|PubMed:10873595, ECO:0000269|PubMed:11159893, ECO:0000269|PubMed:11932330, ECO:0000269|PubMed:12409283, ECO:0000269|PubMed:12724351, ECO:0000269|PubMed:23531488, ECO:0000269|PubMed:25132355, ECO:0000269|PubMed:26277985}.;
[Isoform 1]: Highest expression in brain. Predominant isoform compared to isoform 3 in small intestine duodenum, kidney, placenta, and skeletal muscle. {ECO:0000269|PubMed:23531488}.;
[Isoform 3]: Predominant isoform compared to isoform 1 in liver. Also expressed in small intestine duodenum, kidney, brain, placenta, and skeletal muscle. {ECO:0000269|PubMed:23531488}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs865987804  rs35199625  rs12422149  rs1621378  rs2306168 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:25132355};
Multi-pass membrane protein. Basal cell membrane {ECO:0000269|PubMed:11159893, ECO:0000269|PubMed:11932330, ECO:0000269|PubMed:12409283};
Multi-pass membrane protein. Apical cell membrane {ECO:0000269|PubMed:12724351};
Multi-pass membrane protein. Note=Expressed at the basal membrane of the hepatocytes and syncytiotrophoblast (PubMed:11159893, PubMed:11932330, PubMed:12409283). Expressed at the apical membrane of intestinal cells (PubMed:12724351). {ECO:0000269|PubMed:11159893, ECO:0000269|PubMed:11932330, ECO:0000269|PubMed:12409283, ECO:0000269|PubMed:12724351}.
Mouse PG classificationNA
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