SLC2A14 Knockout Huh-7 Cell Line

The choice depends on the experimental question. SLC2A14 (GLUT14) is a relatively recent GLUT family member that arose from a SLC2A3/GLUT3 gene duplication and shares ~95% sequence identity with GLUT3, but with substantially restricted tissue expression — GLUT14 is primarily expressed in testis. The Knockout line is appropriate for asking whether SLC2A14 contributes to glucose uptake or other hexose transport in non-testis contexts, with the caveat that Huh-7 (hepatocellular carcinoma) is not the physiological GLUT14-expressing tissue. Overexpression in Huh-7 may be more functionally informative for biochemical and structure-function studies, given the lack of robust endogenous expression in this background. For SLC2A14 research, the EDITGENE Knockout in Huh-7 is most useful as a clean genetic background for heterologous GLUT14 expression studies and for confirming complete loss in cells with low baseline expression. Notable considerations: GLUT14 has two splice isoforms (long and short forms with different N-termini), and given its very high sequence identity with GLUT3, immunological and uptake assays must use reagents and conditions that distinguish the two paralogs. For physiological function studies, particularly in male reproductive biology and emerging Alzheimer's disease genetic associations, testis-derived models and neuronal contexts are more appropriate.

Primary applications: • Heterologous GLUT14 expression studies: rescue with wild-type GLUT14 (long or short isoform) in a clean knockout background for biochemical and structure-function research. • Isoform-specific studies: GLUT14 has long (520 aa) and short (497 aa) isoforms with distinct N-termini — separate rescue with each isoform enables isoform-specific characterization. • Substrate specificity: ³H-2-deoxyglucose and other hexose uptake assays under heterologous GLUT14 expression to characterize substrate scope relative to GLUT3. • Antibody validation: critical genetic control for anti-GLUT14 antibodies, particularly important given high sequence identity with GLUT3. EDITGENE recommends this model for in vitro biochemistry and antibody specificity validation. Physiological GLUT14 function research, particularly in male reproductive biology, requires testis-derived models.

Yes, with heterologous expression considerations: • Construct design: use a codon-modified SLC2A14 sequence with a small C-terminal tag (FLAG, HA). GLUT14 has 12 transmembrane domains in the canonical GLUT family architecture — both N- and C-terminal cytoplasmic tags are typically tolerated, though C-terminal is preferred. • Isoform selection: GLUT14 long (520 aa) versus short (497 aa) isoforms have different N-termini — choose the isoform appropriate to the experimental question; for testis-relevant biology, the long isoform may be more physiologically relevant. • Heterologous expression context: Huh-7 does not normally express GLUT14 at functional levels — rescue is effectively a controlled heterologous expression study, useful for biochemistry rather than physiological function. • Functional readout: rescue should restore hexose transport activity measured by ³H-2-deoxyglucose uptake; comparison with GLUT3 rescue characterizes paralog-specific properties. Huh-7 transduces efficiently with lentivirus and supports stable rescue line generation.