NLRX1 Knockout Cell Line (A549)

The choice depends on whether you are studying NLRX1's role as a mitochondrial NLR family member or its functions in MAVS-mediated antiviral signaling regulation and metabolic homeostasis. The Knockout line is the standard tool for asking whether NLRX1 is required for these processes — NLRX1 is uniquely localized to the mitochondrial outer membrane among NLR family members and negatively regulates MAVS-mediated type I interferon responses while contributing to mitochondrial metabolism. Overexpression is useful for studying NLRX1 in heterologous antiviral contexts. For mitochondrial NLR and antiviral signaling research, the EDITGENE NLRX1 Knockout in A-549 is highly relevant — A-549 is widely used for respiratory virus research and NLRX1 regulates RIG-I-MAVS antiviral signaling against influenza and other RNA viruses. Rescue with wild-type or mitochondrial-targeting-deficient NLRX1 enables structure-function studies. The knockout is valuable for studying NLRX1's emerging role as a metabolic regulator and its dual functions in mitochondrial biology and innate immunity.

Primary applications: • Antiviral signaling: type I IFN response (IFN-β reporter, phospho-IRF3, phospho-TBK1) following viral infection or poly(I:C) stimulation in lung epithelial context. • Respiratory virus replication: influenza, SARS-CoV-2, RSV replication assays in A-549 context — NLRX1 negatively regulates MAVS-mediated antiviral responses. • Mitochondrial bioenergetics: Seahorse OCR/ECAR analysis given NLRX1's mitochondrial outer membrane localization and metabolic roles. • Mitochondrial localization studies: confocal imaging of mitochondrial localization with TOM20/HSP60 co-staining in rescue cell lines. EDITGENE recommends this model for researchers investigating mitochondrial NLR biology, RIG-I-MAVS antiviral signaling, and respiratory virus host factor research.

Yes. NLRX1 rescue experiments require attention to mitochondrial outer membrane targeting: • Construct design: use a codon-modified NLRX1 sequence with a small C-terminal tag (FLAG, HA). NLRX1 has N-terminal mitochondrial targeting sequence directing to mitochondrial outer membrane, NACHT domain, and C-terminal LRR — N-terminal tags must not disrupt mitochondrial targeting. • Mitochondrial localization validation: confirm mitochondrial outer membrane localization by TOM20 co-localization before functional assays. • Mitochondrial-targeting-deficient rescue: N-terminal MTS truncation generates cytoplasmic NLRX1 for localization-function studies. • Functional readout: rescue should restore MAVS antiviral signaling attenuation and mitochondrial bioenergetic profiles. A-549 transduces efficiently with lentivirus and supports stable rescue line generation.