SLC23A1 Knockout HuH-7 Cell Line

The choice depends on whether you are studying SLC23A1 (SVCT1)'s role as a sodium-dependent vitamin C (ascorbate) transporter or its contributions to systemic vitamin C homeostasis. The Knockout line is the standard tool for asking whether SVCT1 is required for ascorbate uptake — SVCT1 is the principal apical vitamin C transporter in intestinal epithelium and kidney proximal tubule. Overexpression is useful for testing transport activity or for studying SVCT1 polymorphisms associated with vitamin C status. For vitamin C biology research, the EDITGENE SVCT1 Knockout in Huh-7 enables study of hepatic ascorbate uptake — though SVCT1's principal physiological sites are intestinal and renal apical membranes. SLC23A2 (SVCT2) paralog expression analysis is important; SVCT2 is the high-affinity transporter expressed in most other tissues. Rescue with wild-type or transport-deficient SVCT1 enables structure-function studies. Common SLC23A1 polymorphisms (e.g., V264M, V165L) affect circulating vitamin C levels.

Primary applications: • Ascorbate uptake assays: ¹⁴C-ascorbate or LC-MS-based intracellular vitamin C measurement to quantify SVCT1-dependent transport. • Vitamin C status studies: assessment of cellular vitamin C levels and antioxidant function in the absence of SVCT1. • Polymorphism functional studies: rescue with common SLC23A1 polymorphisms (V264M, V165L, others) associated with circulating vitamin C levels for genotype-function correlation. • SVCT2 paralog studies: SLC23A2 expression analysis given its broader tissue distribution and higher ascorbate affinity. EDITGENE recommends this model for researchers investigating vitamin C transport biology, SVCT family function, and vitamin C pharmacogenomics.

Yes. SVCT1 rescue experiments require attention to sodium coupling and apical targeting: • Construct design: use a codon-modified SLC23A1 sequence with a small C-terminal tag (FLAG, HA). SVCT1 has 12 transmembrane domains — N-terminal tags must not disrupt topology. • Surface localization validation: confirm plasma membrane localization by cell surface biotinylation; apical sorting requires specific signals. • Polymorphism rescue: clinically relevant SLC23A1 polymorphisms (V264M, V165L) affecting circulating vitamin C levels enable pharmacogenomic studies. • Functional readout: rescue should restore sodium-dependent ascorbate uptake measured by ¹⁴C-ascorbate uptake or LC-MS detection. Huh-7 transduces efficiently with lentivirus and supports stable rescue line generation.