TEAD2 Knockout Cell Line (A549)

The choice depends on whether you are studying TEAD2 as a YAP/TAZ transcriptional partner in Hippo signaling or its specific role in cancer biology, particularly NSCLC. The Knockout line is appropriate for asking whether TEAD2 is required for YAP/TAZ-mediated transcription in A-549 — a context where Hippo pathway dysregulation is well-documented. Overexpression is useful for testing TEAD2 sufficiency or for studying TEAD2 in cancer contexts where it is amplified or overexpressed. Important consideration: TEAD1-4 share substantial functional redundancy as YAP/TAZ partners. Single TEAD2 knockout in A-549 may show mild phenotypes if TEAD1, TEAD3, and TEAD4 compensate. The EDITGENE Knockout line is most informative when combined with assessment of remaining TEAD paralog expression. Rescue with wild-type or YAP-binding-deficient TEAD2 is the standard approach for assigning observed phenotypes to YAP/TAZ partnership. TEAD inhibitors (palmitate-binding pocket compounds) are in clinical development, making this knockout valuable as a specificity control.

Primary applications: • YAP/TAZ-TEAD transcription: YAP/TAZ-responsive reporter assays (8xGTIIC-luc) and target gene expression (CTGF, CYR61, ANKRD1, AMOTL2) to assess TEAD2's transcriptional contribution. • Lung cancer phenotype assays: proliferation, anchorage-independent growth, and migration relevant to NSCLC biology where Hippo dysregulation is documented. • TEAD inhibitor specificity: critical genetic control for testing TEAD palmitate-pocket inhibitors (IAG933, K-975, MGH-CP1 and related compounds) for on-target versus off-target activity. • TEAD paralog compensation: TEAD1/3/4 expression analysis to interpret single-paralog knockout phenotypes. EDITGENE recommends this model for researchers investigating Hippo-YAP/TAZ signaling, lung cancer biology, and TEAD inhibitor development.

Yes. TEAD2 rescue experiments require attention to YAP/TAZ binding and palmitoylation: • Construct design: use a codon-modified TEAD2 sequence with a small N- or C-terminal tag (FLAG, HA). TEAD2 contains an N-terminal TEA DNA-binding domain and C-terminal YAP/TAZ-binding domain. • YAP-binding-deficient rescue: specific mutations at the YAP-binding interface (e.g., Y429H equivalents) separate YAP/TAZ-dependent functions from DNA-binding activities. • Palmitoylation studies: TEAD family proteins are auto-palmitoylated at a conserved cysteine — palmitoylation-deficient mutants (C-to-S in the lipid-binding pocket) test the role of this modification, which is also the target of clinical TEAD inhibitors. • TEAD paralog compensation: rescue interpretation should account for TEAD1/3/4 expression in A-549. A-549 transduces efficiently with lentivirus and supports stable rescue line generation.