http://identifiers.org/mgd/MGI:1341903 solute carrier family 23 (nucleobase transporters), member 1 Slc23a1 YSPL3|SVCT1|Slc23a2|D18Ucla2 O protein coding gene MGI:1341903 D18Ucla2 Gene - SVCT1 YSPL3 genetic mapping Slc23a2