TMEM104 Knockout HCT116 Cell Line

The choice depends on the experimental question, but for SLC38A12 — an emerging factor — the framing of the question itself often needs to come first. SLC38A12 belongs to the SLC38/SNAT family of sodium-coupled neutral amino acid transporters but is comparatively less characterized than SNAT1-5 and SNAT7. Predicted to function as an amino acid transporter, but the substrate specificity, sodium-coupling, and cellular function require empirical determination. The EDITGENE Knockout in HCT 116 is most useful for unbiased discovery — characterizing transcriptomic and metabolomic consequences of SLC38A12 loss in a colorectal cancer background to identify candidate substrates and functions. Discovery-oriented approaches (metabolomics with broad amino acid panel, transcriptomics) in the knockout are most informative at this stage. Rescue with wild-type SLC38A12 serves as the specificity control during phenotypic characterization.

Primary applications: • Discovery transcriptomics: RNA-seq to characterize gene expression changes in the knockout, generating hypotheses for an under-characterized SLC38 family member. • Amino acid metabolomics: broad amino acid panel analysis under nutrient-replete and depleted conditions to identify candidate substrates. • Phenotypic profiling: proliferation, viability, and amino acid starvation response characterization. • Heterologous expression: rescue with epitope-tagged SLC38A12 for subcellular localization and interactome studies. EDITGENE recommends this model as a starting platform for functional characterization of SLC38A12, given its limited prior characterization in published literature.

Yes, and rescue experiments are particularly important for this under-characterized factor: • Construct design: use a codon-modified SLC38A12 sequence with a small C-terminal tag (FLAG, HA). The predicted SLC38 family transmembrane architecture should be preserved. • Discovery-oriented rescue: parallel wild-type rescue during phenotypic characterization distinguishes true SLC38A12-dependent phenotypes from off-target editing artifacts — critical for emerging factors. • Localization validation: confirm subcellular localization of exogenous protein by imaging given limited prior data. • Functional readout: rescue should restore phenotypes identified in discovery transcriptomics or metabolomics analyses; amino acid uptake panels test the predicted SLC38 family activity. HCT 116 transduces efficiently with lentivirus and supports stable rescue line generation.