- genetic mapping C330017E21Rik|SLC21A20|PRO2176|OATP-H|OATP4C1|OATP-M1 OATP-H protein coding gene OATP-M1 PRO2176 http://identifiers.org/mgd/MGI:2442784 O MGI:2442784 solute carrier organic anion transporter family, member 4C1 Gene C330017E21Rik SLC21A20 OATP4C1 Slco4c1