SLC22A12 and hypouricemia, renal: Renal hypouricemia is currently classified into two types according to its causative genes—genetic dysfunction in urate transporter 1 (URAT1, also known as SLC22A12) and glucose transporter 9 (GLUT9, also known as SLC2A9) corresponds to RHUC type 1 (Enomoto et al., 2002; Ichida et al., 2004; Iwai et al., 2004; Cheong et al., 2005; Wakida et al., 2005) and RHUC type 2 (Anzai et al., 2008; Matsuo et al., 2008; Dinour et al., 2010; Stiburkova et al., 2011; Stiburkova et al., 2012), respectively.