SLC2A4 Knockout Huh-7 Cell Line

The choice depends on whether you are studying SLC2A4 (GLUT4)'s role as the insulin-responsive glucose transporter or using heterologous expression for biochemical studies. Note that GLUT4 is principally expressed in skeletal muscle and adipose tissue where it mediates insulin-stimulated glucose uptake — Huh-7 (hepatocellular carcinoma) is not the physiological GLUT4-expressing context. The Knockout line in Huh-7 is most useful as a clean genetic background for heterologous GLUT4 expression studies and for confirming complete loss in cells with low baseline expression. Overexpression is generally more functionally informative than knockout for GLUT4 research in Huh-7. The EDITGENE Knockout is useful for biochemical studies, GLUT4 trafficking research using heterologous expression, and rescue with wild-type or trafficking-mutant GLUT4 variants. For physiological insulin-stimulated glucose uptake research, muscle (L6, C2C12) or adipocyte (3T3-L1) models are more appropriate.

Primary applications: • Heterologous GLUT4 expression studies: rescue with wild-type or trafficking-mutant GLUT4 in a clean knockout background, useful for in vitro biochemistry. • GLUT4 trafficking biochemistry: GSV (GLUT4 storage vesicle) component interaction studies in heterologous expression contexts. • Glucose transport studies: 2-deoxyglucose uptake assays in the clean knockout background to confirm GLUT4-specific contributions in heterologous expression. • Antibody validation: critical genetic specificity control for anti-GLUT4 antibodies. EDITGENE recommends this model primarily for in vitro biochemistry and antibody specificity validation. Physiological insulin-stimulated glucose uptake research requires L6, C2C12, or 3T3-L1 differentiated adipocyte models.

Yes, with heterologous expression considerations specific to Huh-7 context: • Construct design: use a codon-modified SLC2A4 sequence with a small N- or C-terminal tag (FLAG, HA). GLUT4 has 12 transmembrane domains — both N- and C-terminal cytoplasmic tags are typically tolerated. • GSV trafficking studies: rescue with GFP-tagged GLUT4 enables imaging-based GSV trafficking analysis in heterologous expression, though insulin-stimulated translocation requires muscle/adipocyte signaling machinery. • Trafficking-mutant rescue: GLUT4 N-terminal phenylalanine motif (F5) or C-terminal dileucine motif mutations disrupt intracellular retention and enable trafficking studies. • Functional readout: in Huh-7, glucose transport activity can be measured by 2-deoxyglucose uptake, though insulin-responsive translocation is not preserved without muscle/adipocyte context. Huh-7 transduces efficiently with lentivirus and supports stable rescue line generation for heterologous biochemical studies.