Fig. 2. Northern blot on total kidney RNA. Northern blot analysis on total RNA from kidneys of animals of 12–15 days of age. Four samples for each genotype are shown, from left to right: wild-type, heterozygous and mutant homozygous animals. SGLT1, sodium glucose transporter type 1; SGLT2, sodium glucose transporter type 2; SAAT1, sodium-dependent glucose cotransporter type 2 also known as SGLT3; Glut2, glucose transporter type 2; Na+/K+ ATPase α subunit of the Na+/K+ ATPase pump.