ID SO2A1_MOUSE Reviewed; 643 AA. AC Q9EPT5; DT 10-JAN-2003, integrated into UniProtKB/Swiss-Prot. DT 10-JAN-2003, sequence version 2. DT 24-JAN-2024, entry version 167. DE RecName: Full=Solute carrier organic anion transporter family member 2A1 {ECO:0000305}; DE Short=SLCO2A1 {ECO:0000303|PubMed:26474801, ECO:0000303|PubMed:27169804, ECO:0000303|PubMed:29046334, ECO:0000303|PubMed:32442363}; DE AltName: Full=OATP2A1 {ECO:0000303|PubMed:26474801}; DE AltName: Full=PHOAR2; DE AltName: Full=Prostaglandin transporter {ECO:0000303|PubMed:10484490, ECO:0000303|PubMed:18579702}; DE Short=PGT {ECO:0000303|PubMed:10484490, ECO:0000303|PubMed:18579702}; DE AltName: Full=Solute carrier family 21 member 2; DE Short=SLC21A2; GN Name=Slco2a1 {ECO:0000312|MGI:MGI:1346021}; Synonyms=Oatp2a1, Slc21a2; OS Mus musculus (Mouse). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; OC Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; OC Murinae; Mus; Mus. OX NCBI_TaxID=10090; RN [1] RP NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), MUTAGENESIS OF VAL-610 AND ILE-611, RP TISSUE SPECIFICITY, FUNCTION, AND TRANSPORTER ACTIVITY. RC TISSUE=Lung; RX PubMed=10484490; DOI=10.1152/ajpregu.1999.277.3.r734; RA Pucci M.L., Bao Y., Chan B., Itoh S., Lu R., Copeland N.G., Gilbert D.J., RA Jenkins N.A., Schuster V.L.; RT "Cloning of mouse prostaglandin transporter PGT cDNA: species-specific RT substrate affinities."; RL Am. J. Physiol. 277:R734-R741(1999). RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2). RC STRAIN=FVB/N; TISSUE=Mammary cancer; RX PubMed=15489334; DOI=10.1101/gr.2596504; RG The MGC Project Team; RT "The status, quality, and expansion of the NIH full-length cDNA project: RT the Mammalian Gene Collection (MGC)."; RL Genome Res. 14:2121-2127(2004). RN [3] RP FUNCTION, TRANSPORTER ACTIVITY, ACTIVITY REGULATION, AND TISSUE RP SPECIFICITY. RX PubMed=18579702; DOI=10.1152/ajprenal.00564.2007; RA Chi Y., Pucci M.L., Schuster V.L.; RT "Dietary salt induces transcription of the prostaglandin transporter gene RT in renal collecting ducts."; RL Am. J. Physiol. 295:F765-F771(2008). RN [4] RP FUNCTION, TISSUE SPECIFICITY, SUBCELLULAR LOCATION, AND TRANSPORTER RP ACTIVITY. RX PubMed=26474801; DOI=10.1016/j.bcp.2015.10.009; RA Shimada H., Nakamura Y., Nakanishi T., Tamai I.; RT "OATP2A1/SLCO2A1-mediated prostaglandin E2 loading into intracellular RT acidic compartments of macrophages contributes to exocytotic secretion."; RL Biochem. Pharmacol. 98:629-638(2015). RN [5] RP FUNCTION, AND TRANSPORTER ACTIVITY. RX PubMed=26692285; DOI=10.1016/j.prostaglandins.2015.12.003; RA Gose T., Nakanishi T., Kamo S., Shimada H., Otake K., Tamai I.; RT "Prostaglandin transporter (OATP2A1/SLCO2A1) contributes to local RT disposition of eicosapentaenoic acid-derived PGE3."; RL Prostaglandins Other Lipid Mediat. 122:10-17(2016). RN [6] RP FUNCTION, TISSUE SPECIFICITY, AND ACTIVITY REGULATION. RX PubMed=27169804; DOI=10.1126/scitranslmed.aad2709; RA Yerushalmi G.M., Markman S., Yung Y., Maman E., Aviel-Ronen S., Orvieto R., RA Adashi E.Y., Hourvitz A.; RT "The prostaglandin transporter (PGT) as a potential mediator of RT ovulation."; RL Sci. Transl. Med. 8:338ra68-338ra68(2016). RN [7] RP FUNCTION. RX PubMed=29046334; DOI=10.15252/embj.201796685; RA Sabirov R.Z., Merzlyak P.G., Okada T., Islam M.R., Uramoto H., Mori T., RA Makino Y., Matsuura H., Xie Y., Okada Y.; RT "The organic anion transporter SLCO2A1 constitutes the core component of RT the Maxi-Cl channel."; RL EMBO J. 36:3309-3324(2017). RN [8] RP FUNCTION. RX PubMed=32442363; DOI=10.33594/000000238; RA Islam M.R., Okada T., Merzlyak P.G., Toychiev A.H., Ando-Akatsuka Y., RA Sabirov R.Z., Okada Y.; RT "Annexin A2-S100A10 Represents the Regulatory Component of Maxi-Cl Channel RT Dependent on Protein Tyrosine Dephosphorylation and Intracellular RT Calcium."; RL Cell. Physiol. Biochem. 54:538-555(2020). RN [9] RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. RC TISSUE=Lung; RX PubMed=21183079; DOI=10.1016/j.cell.2010.12.001; RA Huttlin E.L., Jedrychowski M.P., Elias J.E., Goswami T., Rad R., RA Beausoleil S.A., Villen J., Haas W., Sowa M.E., Gygi S.P.; RT "A tissue-specific atlas of mouse protein phosphorylation and expression."; RL Cell 143:1174-1189(2010). CC -!- FUNCTION: Mediates the transport of prostaglandins (PGs, mainly PGE2, CC PGE1, PGE3, PGF2alpha, PGD2, PGH2) and thromboxanes (thromboxane B2) CC across the cell membrane (PubMed:10484490) (Probable). PGs and CC thromboxanes play fundamental roles in diverse functions such as CC intraocular pressure, gastric acid secretion, renal salt and water CC transport, vascular tone, and fever (By similarity). Plays a role in CC the clearance of PGs from the circulation through cellular uptake, CC which allows cytoplasmic oxidation and PG signal termination CC (PubMed:10484490) (Probable). PG uptake is dependent upon membrane CC potential and involves exchange of a monovalent anionic substrate (PGs CC exist physiologically as an anionic monovalent form) with a CC stoichiometry of 1:1 for divalent anions or of 1:2 for monovalent CC anions (By similarity). Uses lactate, generated by glycolysis, as a CC counter-substrate to mediate PG influx and efflux. Under nonglycolytic CC conditions, metabolites other than lactate might serve as counter- CC substrates. Although the mechanism is not clear, this transporter can CC function in bidirectional mode (By similarity). When apically expressed CC in epithelial cells, it facilitates transcellular transport (also CC called vectorial release), extracting PG from the apical medium and CC facilitating transport across the cell toward the basolateral side, CC whereupon the PG exits the cell by simple diffusion (PubMed:18579702). CC In the renal collecting duct, regulates renal Na+ balance by removing CC PGE2 from apical medium (PGE2 EP4 receptor is likely localized to the CC luminal/apical membrane and stimulates Na+ resorption) and transporting CC it toward the basolateral membrane (where PGE2 EP1 and EP3 receptors CC inhibit Na+ resorption) (PubMed:18579702). Plays a role in endometrium CC during decidualization, increasing uptake of PGs by decidual cells (By CC similarity). Involved in critical events for ovulation CC (PubMed:27169804). Regulates extracellular PGE2 concentration for CC follicular development in the ovaries (PubMed:27169804). When expressed CC intracellularly, such as in macrophages, contributes to vesicular CC uptake of newly synthesized intracellular PGs, thereby facilitating CC exocytotic secretion of PGs without being metabolized CC (PubMed:26474801). Essential core component of the major type of large- CC conductance anion channel, Maxi-Cl, which plays essential roles in CC inorganic anion transport, cell volume regulation and release of ATP CC and glutamate not only in physiological processes but also in CC pathological processes (PubMed:29046334, PubMed:32442363). May CC contribute to regulate the transport of organic compounds in testis CC across the blood-testis-barrier (By similarity). CC {ECO:0000250|UniProtKB:Q92959, ECO:0000269|PubMed:10484490, CC ECO:0000269|PubMed:18579702, ECO:0000269|PubMed:26474801, CC ECO:0000269|PubMed:27169804, ECO:0000269|PubMed:29046334, CC ECO:0000269|PubMed:32442363, ECO:0000305|PubMed:26692285}. CC -!- CATALYTIC ACTIVITY: CC Reaction=prostaglandin E2(out) = prostaglandin E2(in); CC Xref=Rhea:RHEA:50984, ChEBI:CHEBI:606564; CC Evidence={ECO:0000269|PubMed:26474801}; CC -!- CATALYTIC ACTIVITY: CC Reaction=2 (S)-lactate(in) + prostaglandin E2(out) = 2 (S)-lactate(out) CC + prostaglandin E2(in); Xref=Rhea:RHEA:74383, ChEBI:CHEBI:16651, CC ChEBI:CHEBI:606564; Evidence={ECO:0000269|PubMed:10484490, CC ECO:0000305|PubMed:18579702}; CC -!- CATALYTIC ACTIVITY: CC Reaction=2 (S)-lactate(in) + prostaglandin E1(out) = 2 (S)-lactate(out) CC + prostaglandin E1(in); Xref=Rhea:RHEA:74395, ChEBI:CHEBI:16651, CC ChEBI:CHEBI:57397; Evidence={ECO:0000250|UniProtKB:Q92959}; CC -!- CATALYTIC ACTIVITY: CC Reaction=2 (S)-lactate(in) + prostaglandin F2alpha(out) = 2 (S)- CC lactate(out) + prostaglandin F2alpha(in); Xref=Rhea:RHEA:74399, CC ChEBI:CHEBI:16651, ChEBI:CHEBI:57404; CC Evidence={ECO:0000305|PubMed:10484490}; CC -!- CATALYTIC ACTIVITY: CC Reaction=2 (S)-lactate(in) + prostaglandin D2(out) = 2 (S)-lactate(out) CC + prostaglandin D2(in); Xref=Rhea:RHEA:74403, ChEBI:CHEBI:16651, CC ChEBI:CHEBI:57406; Evidence={ECO:0000305|PubMed:10484490}; CC -!- CATALYTIC ACTIVITY: CC Reaction=2 (S)-lactate(in) + thromboxane B2(out) = 2 (S)-lactate(out) + CC thromboxane B2(in); Xref=Rhea:RHEA:74407, ChEBI:CHEBI:16651, CC ChEBI:CHEBI:90696; Evidence={ECO:0000250|UniProtKB:Q92959}; CC -!- CATALYTIC ACTIVITY: CC Reaction=2 (S)-lactate(in) + prostaglandin E3(out) = 2 (S)-lactate(out) CC + prostaglandin E3(in); Xref=Rhea:RHEA:74351, ChEBI:CHEBI:16651, CC ChEBI:CHEBI:133132; Evidence={ECO:0000305|PubMed:26692285}; CC -!- CATALYTIC ACTIVITY: CC Reaction=2 (S)-lactate(in) + prostaglandin H2(out) = 2 (S)-lactate(out) CC + prostaglandin H2(in); Xref=Rhea:RHEA:74379, ChEBI:CHEBI:16651, CC ChEBI:CHEBI:57405; Evidence={ECO:0000250|UniProtKB:Q00910}; CC -!- ACTIVITY REGULATION: Higher dietary salt intake stimulates CC transcription (PubMed:18579702). Chorionic gonadotropin stimulates CC expression in the ovaries (PubMed:27169804). CC {ECO:0000269|PubMed:18579702, ECO:0000269|PubMed:27169804}. CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250|UniProtKB:Q92959}; CC Multi-pass membrane protein {ECO:0000255}. Basal cell membrane CC {ECO:0000250|UniProtKB:Q92959}; Multi-pass membrane protein CC {ECO:0000255}. Cytoplasm {ECO:0000269|PubMed:26474801}. Lysosome CC {ECO:0000269|PubMed:26474801}. CC -!- ALTERNATIVE PRODUCTS: CC Event=Alternative splicing; Named isoforms=2; CC Name=1; CC IsoId=Q9EPT5-1; Sequence=Displayed; CC Name=2; CC IsoId=Q9EPT5-2; Sequence=VSP_006128, VSP_006129; CC -!- TISSUE SPECIFICITY: Highly expressed in lung and liver CC (PubMed:10484490). Expressed at lower levels in kidney and skeletal CC muscle (PubMed:10484490, PubMed:18579702). Expressed in the ovaries (at CC mRNA and protein levels) (PubMed:27169804). Expressed in peritoneal CC macrophages (at mRNA and protein levels) (PubMed:26474801). CC {ECO:0000269|PubMed:10484490, ECO:0000269|PubMed:18579702, CC ECO:0000269|PubMed:26474801, ECO:0000269|PubMed:27169804}. CC -!- SIMILARITY: Belongs to the organo anion transporter (TC 2.A.60) family. CC {ECO:0000305}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AF323958; AAG40332.1; -; mRNA. DR EMBL; BC035200; AAH35200.1; -; mRNA. DR CCDS; CCDS23448.1; -. [Q9EPT5-1] DR RefSeq; NP_201571.2; NM_033314.3. [Q9EPT5-1] DR AlphaFoldDB; Q9EPT5; -. DR SMR; Q9EPT5; -. DR STRING; 10090.ENSMUSP00000035148; -. DR BindingDB; Q9EPT5; -. DR ChEMBL; CHEMBL2073699; -. DR GlyCosmos; Q9EPT5; 3 sites, No reported glycans. DR GlyGen; Q9EPT5; 3 sites. DR iPTMnet; Q9EPT5; -. DR PhosphoSitePlus; Q9EPT5; -. DR SwissPalm; Q9EPT5; -. DR MaxQB; Q9EPT5; -. DR PaxDb; 10090-ENSMUSP00000035148; -. DR PeptideAtlas; Q9EPT5; -. DR ProteomicsDB; 261103; -. [Q9EPT5-1] DR ProteomicsDB; 261104; -. [Q9EPT5-2] DR Pumba; Q9EPT5; -. DR Antibodypedia; 33384; 103 antibodies from 16 providers. DR DNASU; 24059; -. DR Ensembl; ENSMUST00000035148.13; ENSMUSP00000035148.7; ENSMUSG00000032548.15. [Q9EPT5-1] DR Ensembl; ENSMUST00000188664.2; ENSMUSP00000140533.2; ENSMUSG00000032548.15. [Q9EPT5-2] DR GeneID; 24059; -. DR KEGG; mmu:24059; -. DR UCSC; uc009rgd.1; mouse. [Q9EPT5-1] DR AGR; MGI:1346021; -. DR CTD; 6578; -. DR MGI; MGI:1346021; Slco2a1. DR VEuPathDB; HostDB:ENSMUSG00000032548; -. DR eggNOG; KOG3626; Eukaryota. DR GeneTree; ENSGT01080000257336; -. DR HOGENOM; CLU_008954_4_1_1; -. DR InParanoid; Q9EPT5; -. DR OMA; MMVLRCV; -. DR OrthoDB; 2874223at2759; -. DR PhylomeDB; Q9EPT5; -. DR TreeFam; TF317540; -. DR Reactome; R-MMU-879518; Transport of organic anions. DR BioGRID-ORCS; 24059; 3 hits in 79 CRISPR screens. DR ChiTaRS; Slco2a1; mouse. DR PRO; PR:Q9EPT5; -. DR Proteomes; UP000000589; Chromosome 9. DR RNAct; Q9EPT5; Protein. DR Bgee; ENSMUSG00000032548; Expressed in placenta labyrinth and 180 other cell types or tissues. DR ExpressionAtlas; Q9EPT5; baseline and differential. DR GO; GO:0009925; C:basal plasma membrane; ISS:UniProtKB. DR GO; GO:0005764; C:lysosome; IEA:UniProtKB-SubCell. DR GO; GO:0005886; C:plasma membrane; IC:MGI. DR GO; GO:0015132; F:prostaglandin transmembrane transporter activity; IDA:MGI. DR GO; GO:0015347; F:sodium-independent organic anion transmembrane transporter activity; IBA:GO_Central. DR GO; GO:0015732; P:prostaglandin transport; IDA:MGI. DR GO; GO:0043252; P:sodium-independent organic anion transport; IBA:GO_Central. DR CDD; cd17461; MFS_SLCO2A_OATP2A; 1. DR Gene3D; 3.30.60.30; -; 1. DR Gene3D; 1.20.1250.20; MFS general substrate transporter like domains; 1. DR InterPro; IPR002350; Kazal_dom. DR InterPro; IPR036058; Kazal_dom_sf. DR InterPro; IPR020846; MFS_dom. DR InterPro; IPR036259; MFS_trans_sf. DR InterPro; IPR004156; OATP. DR NCBIfam; TIGR00805; oat; 1. DR PANTHER; PTHR11388; ORGANIC ANION TRANSPORTER; 1. DR PANTHER; PTHR11388:SF14; SOLUTE CARRIER ORGANIC ANION TRANSPORTER FAMILY MEMBER 2A1; 1. DR Pfam; PF07648; Kazal_2; 1. DR Pfam; PF03137; OATP; 1. DR SUPFAM; SSF100895; Kazal-type serine protease inhibitors; 1. DR SUPFAM; SSF103473; MFS general substrate transporter; 1. DR PROSITE; PS51465; KAZAL_2; 1. DR PROSITE; PS50850; MFS; 1. DR Genevisible; Q9EPT5; MM. PE 1: Evidence at protein level; KW Alternative splicing; Cell membrane; Cytoplasm; Disulfide bond; KW Glycoprotein; Lipid transport; Lysosome; Membrane; Reference proteome; KW Transmembrane; Transmembrane helix; Transport. FT CHAIN 1..643 FT /note="Solute carrier organic anion transporter family FT member 2A1" FT /id="PRO_0000191059" FT TOPO_DOM 1..32 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 33..52 FT /note="Helical; Name=1" FT /evidence="ECO:0000255" FT TOPO_DOM 53..71 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 72..92 FT /note="Helical; Name=2" FT /evidence="ECO:0000255" FT TOPO_DOM 93..98 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 99..123 FT /note="Helical; Name=3" FT /evidence="ECO:0000255" FT TOPO_DOM 124..167 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 168..196 FT /note="Helical; Name=4" FT /evidence="ECO:0000255" FT TOPO_DOM 197..215 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 216..236 FT /note="Helical; Name=5" FT /evidence="ECO:0000255" FT TOPO_DOM 237..254 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 255..279 FT /note="Helical; Name=6" FT /evidence="ECO:0000255" FT TOPO_DOM 280..320 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 321..342 FT /note="Helical; Name=7" FT /evidence="ECO:0000255" FT TOPO_DOM 343..362 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 363..386 FT /note="Helical; Name=8" FT /evidence="ECO:0000255" FT TOPO_DOM 387..390 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 391..414 FT /note="Helical; Name=9" FT /evidence="ECO:0000255" FT TOPO_DOM 415..517 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 518..540 FT /note="Helical; Name=10" FT /evidence="ECO:0000255" FT TOPO_DOM 541..549 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 550..575 FT /note="Helical; Name=11" FT /evidence="ECO:0000255" FT TOPO_DOM 576..609 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 610..628 FT /note="Helical; Name=12" FT /evidence="ECO:0000255" FT TOPO_DOM 629..643 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT DOMAIN 437..495 FT /note="Kazal-like" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00798" FT REGION 1..20 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT CARBOHYD 134 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 477 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 490 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT DISULFID 443..473 FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00798" FT DISULFID 449..469 FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00798" FT DISULFID 458..493 FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00798" FT VAR_SEQ 368..414 FT /note="GAVNLPAAALGMLFGGILMKRFVFPLQTIPRVAATIMTISIILCAPL -> A FT HQVLYIRSLPPAAGTACAQIPSSTLSAETMESSTSPPAMLAAAAST (in isoform FT 2)" FT /evidence="ECO:0000303|PubMed:15489334" FT /id="VSP_006128" FT VAR_SEQ 415..643 FT /note="Missing (in isoform 2)" FT /evidence="ECO:0000303|PubMed:15489334" FT /id="VSP_006129" FT MUTAGEN 610 FT /note="V->M: No effect." FT /evidence="ECO:0000269|PubMed:10484490" FT MUTAGEN 611 FT /note="I->G: No effect." FT /evidence="ECO:0000269|PubMed:10484490" FT CONFLICT 3 FT /note="L -> F (in Ref. 1; AAG40332)" FT /evidence="ECO:0000305" SQ SEQUENCE 643 AA; 70147 MW; AC487386F847D9D8 CRC64; MGLLPKPGAR QGSGTSSVPA RRCSRSVFNN IKVFVLCHGL LQLCQLLYSA YFKSSLTTIE KRFGLSSSSS GLISSLNEIS NAILIIFVSY FGSRVNRPRM IGIGGLLLAA GAFVLTLPHF LSEPYQYAST TAGNSSHFQT DLCQKHLPGL LPSKCHSTVP DTQKETSSMW SLMVVAQLLA GVGTVPIQPF GISYVDDFAE PTNSPLYISI LFAIAVFGPA FGYLLGSVML RIFVDYGRVD TATVNLSPGD PRWIGAWWLG LLISSGFLIV TSLPFFFFPR AMSRGAERSV IAEETMKMEE DKSRGSLMDF IKRFPRIFLR LLMNPLFMLV VLSQCTFSSV IAGLSTFLNK FLEKQYDASA AYANLLIGAV NLPAAALGML FGGILMKRFV FPLQTIPRVA ATIMTISIIL CAPLFFMGCS TPAVAEVYPP STPSSIHPQP PACRRDCLCP DSVFHPVCGD NGVEYLSPCH AGCSSLNVSS AASKQPIYLN CSCVTGGSAS AKTGSCPTSC AQLLLPSIFL ISFVALIACV SHNPLYMMVL RVVNQDEKSF AIGVQFLLMR LLAWLPSPSL YGLLIDSSCI RWNYLCSGRR GACAYYDNDA LRNRYLGLQV IYKVLGTLLL FFISWRVKKN REYSLQENAS GLI //