Sodium-dependent phosphate transport protein 2B MAPWPELGDA QPNPDKYLEG AAGQQPTAPD KSKETNKNNT EAPVTKIELL PSYSTATLID EPTEVDDPWN LPTLQDSGIK WSERDTKGKI LCFFQGIGRL ILLLGFLYFF VCSLDILSSA FQLVGGKMAG QFFSNSSIMS NPLLGLVIGV LVTVLVQSSS TST