TEX36 Knockout Cell Line (HEK293)

The choice depends on the experimental question, but for TEX36 — which is poorly characterized in the literature — the framing question itself often needs to come first. The Knockout line is most useful for unbiased discovery: identifying any phenotypes or pathways associated with TEX36 loss in a heterologous expression context. Overexpression is useful for studying TEX36 interactome and subcellular localization in a tractable cellular background. Important context: TEX36 is normally expressed in testis and fetal/placental tissues; HEK293 expresses minimal endogenous TEX36. Published mouse Tex36 knockouts show normal fertility, suggesting TEX36 may be dispensable for spermatogenesis. The EDITGENE Knockout in HEK293 is most useful for in vitro biochemistry, interactome studies via co-immunoprecipitation, and as a clean background for heterologous TEX36 expression. For physiological TEX36 functional research, testis-derived models or in vivo systems are more appropriate. Rescue with wild-type or epitope-tagged TEX36 enables initial interactome and localization characterization.

Primary applications: • Heterologous expression studies: HEK293 with TEX36 knockout provides a clean background for characterizing exogenously expressed wild-type or tagged TEX36 — addressing initial questions about subcellular localization and interactome. • Interactome studies: co-immunoprecipitation and mass spectrometry with epitope-tagged TEX36 to identify binding partners, particularly given reported MAP kinase pathway connections. • Discovery transcriptomics and phenotypic profiling: RNA-seq and growth/morphology characterization in the knockout to generate hypotheses about TEX36 function in a non-testis context. • MAPK signaling studies: where TEX36-MAPK interactions are observed, downstream pathway analysis in the heterologous expression context. EDITGENE recommends this model primarily for in vitro biochemistry and interactome studies of TEX36 in a tractable heterologous background. Physiological TEX36 functional research, particularly in fertility contexts, requires testis-derived or in vivo models. Note that published mouse Tex36 knockouts show normal fertility.

Yes, and rescue experiments are particularly important for an emerging factor like TEX36: • Construct design: use a codon-modified TEX36 sequence with a small C- or N-terminal tag (FLAG, HA). For under-characterized proteins, both tag positions should be tested initially to confirm functional behavior. • Heterologous expression context: HEK293 does not normally express TEX36 — rescue effectively becomes a controlled heterologous expression study, useful for establishing baseline characterization of subcellular localization and interactome. • Discovery-oriented rescue: rescue with wild-type TEX36 in parallel with knockout phenotype assessment helps distinguish true TEX36-dependent effects from off-target editing artifacts — essential when no published reference data on TEX36 phenotypes is available. • Functional readout: rescue should restore phenotypes identified in discovery transcriptomics or interactome studies. Given published mouse Tex36 knockout fertility (no observable defects), HEK293-context readouts may differ substantially from physiological testis-specific functions. HEK293 transduces efficiently with lentivirus and provides a tractable platform for initial characterization of poorly studied factors.