SLC20A2 Knockout HCT116 Cell Line

The choice depends on whether you are studying SLC20A2 (PiT-2)'s role as a sodium-dependent phosphate transporter or modeling primary familial brain calcification (PFBC, Fahr disease). The Knockout line is the standard tool for asking whether PiT-2 is required for cellular phosphate uptake — PiT-2 is widely expressed and is the principal type III sodium-phosphate cotransporter in many tissues including brain endothelium and astrocytes. Overexpression is useful for studying PFBC-associated mutations or for testing transport activity in heterologous systems. For phosphate transporter research, the EDITGENE SLC20A2 Knockout in HCT 116 enables study of cellular phosphate handling and downstream PiT-2-dependent processes. SLC20A2 mutations are the most common cause of autosomal dominant PFBC, characterized by basal ganglia and cerebral calcifications — disease variant rescue enables genotype-function correlation studies. SLC20A1 (PiT-1) paralog expression analysis aids interpretation given functional overlap.

Primary applications: • Sodium-phosphate cotransport: ³²P-orthophosphate uptake assays under sodium-replete and sodium-free conditions to quantify PiT-2 activity. • PFBC modeling: rescue with disease-associated SLC20A2 mutations for genotype-function correlation studies of familial brain calcification. • Calcium-phosphate handling: cellular calcification assays in mineralization-permissive conditions given PiT-2's role in vascular calcification. • Paralog studies: SLC20A1 (PiT-1) expression analysis to assess type III phosphate cotransporter functional overlap. EDITGENE recommends this model for researchers investigating phosphate transport biology, vascular calcification, and primary familial brain calcification mechanisms.

Yes. PiT-2 rescue experiments require attention to topology and disease variant biology: • Construct design: use a codon-modified SLC20A2 sequence with a small C-terminal tag (FLAG, HA). PiT-2 has 12 transmembrane domains — N-terminal tags must not disrupt topology. • Surface localization validation: confirm plasma membrane localization before transport assays; many PFBC mutations cause ER retention rather than transport defects. • PFBC mutation rescue: patient-derived dominant-acting SLC20A2 mutations enable disease genotype-function studies. • Functional readout: rescue should restore sodium-dependent phosphate uptake measured by ³²P-orthophosphate uptake. HCT 116 transduces efficiently with lentivirus and supports stable rescue line generation.