SLC22A12 and hypouricemia, renal: Moreover, we previously published the high frequencies for the common dysfunction allelic variants c.1245_1253del and c.1400C > T of SLC22A12 (renal hypouricemia type 1, OMIM 220150) among the Roma [53, 54], and those prevalent variants were also identified in Roma Spanish patients with renal hypouricemia [55].