BNIP3 Knockout Cell Line (Hela)

The choice depends on whether you are studying BNIP3's role as a mitophagy receptor or modeling its functions in hypoxia-induced autophagy and cell death. The Knockout line is the standard tool for asking whether BNIP3 is required for these processes — BNIP3 is a BH3-only Bcl-2 family member with C-terminal mitochondrial membrane targeting that functions as a hypoxia-induced (HIF1α-target) mitophagy receptor; BNIP3 contains an LC3-interacting region (LIR motif) that recruits LC3-positive autophagosomes to mitochondria for selective degradation; BNIP3 also has roles in necroptosis and Bax/Bak-mediated cell death. Overexpression is useful for studying BNIP3 gain-of-function effects. Important consideration: BNIP3L/NIX paralog expression analysis aids interpretation given functional overlap. For mitophagy and hypoxia research, the EDITGENE BNIP3 Knockout in HeLa enables study of receptor-mediated mitophagy. Rescue with wild-type or LIR-mutant BNIP3 (W18A/L21A in LIR motif) enables structure-function studies. The knockout is valuable for studying hypoxia-induced mitophagy, mitochondrial quality control, and emerging BNIP3-related cancer biology.

Primary applications: • Hypoxia-induced mitophagy: hypoxia/CoCl₂-induced mitochondrial degradation analysis (mt-Keima, mtRosella reporters) in BNIP3-null cells. • LC3-mitochondria recruitment: LC3-mitochondria colocalization analysis given BNIP3's LIR motif function. • Mitochondrial cell death: hypoxia-induced cell death analysis given BNIP3's pro-death functions. • BNIP3L/NIX paralog studies: NIX expression analysis to interpret BNIP3-specific functions. EDITGENE recommends this model for researchers investigating receptor-mediated mitophagy and hypoxia-induced cellular responses.

Yes. BNIP3 rescue experiments require attention to mitochondrial outer membrane targeting: • Construct design: use a codon-modified BNIP3 sequence with a small N-terminal tag (FLAG, HA) — BNIP3 has N-terminal cytosolic regions and C-terminal transmembrane domain for MOM targeting; N-terminal tag preserves the LIR motif (residues 17-21) and transmembrane region. • Mitochondrial outer membrane localization validation: confirm MOM localization before mitophagy assays. • LIR-mutant rescue: W18A/L21A mutations in the LIR motif abolish LC3 binding and mitophagy receptor function. • BH3-deficient rescue: BH3 domain mutations affect Bax/Bak interactions. • Functional readout: rescue should restore hypoxia-induced mitophagy measured by mt-Keima reporter. HeLa transduces efficiently with lentivirus and supports stable rescue line generation.