LETMD1 Knockout Cell Line (HEK293)

The choice depends on the experimental question. LETMD1 (LETM1 domain containing 1, HCCR-1) is a mitochondrial inner membrane protein with characterized roles in mitochondrial function and emerging characterization in cancer biology. The Knockout line is appropriate for asking whether LETMD1 is required for these processes — LETMD1 contains the LETM1 domain (originally identified in Letm1, a mitochondrial K+/H+ exchanger) and has been characterized as a regulator of mitochondrial morphology, brown adipocyte thermogenesis (UCP1 regulation), and tumor biology in some contexts. Overexpression is useful for studying LETMD1 in heterologous expression contexts. For mitochondrial biology research, the EDITGENE LETMD1 Knockout in HEK293 enables clean genetic background studies of LETMD1 function. Rescue with wild-type LETMD1 is the standard specificity control. The knockout is valuable for studying mitochondrial morphology, brown/beige adipocyte UCP1 regulation in adipocyte-relevant contexts, and emerging LETMD1-related cancer biology.

Primary applications: • Mitochondrial morphology: confocal imaging of mitochondrial networks (Mitotracker, anti-TOM20) to characterize LETMD1-dependent mitochondrial morphology. • Mitochondrial bioenergetics: Seahorse OCR/ECAR analysis given LETMD1's mitochondrial localization. • Adipocyte UCP1 regulation: in heterologous brown/beige adipocyte-relevant contexts, UCP1 expression and thermogenesis analysis. • Discovery proteomics: phosphoproteomics or proteomics in the knockout to identify candidate LETMD1-dependent cellular processes. EDITGENE recommends this model for researchers investigating LETMD1 mitochondrial biology and emerging functions in adipocyte thermogenesis.

Yes. LETMD1 rescue experiments require attention to mitochondrial targeting: • Construct design: use a codon-modified LETMD1 sequence with a small C-terminal tag (FLAG, HA). LETMD1 has N-terminal mitochondrial targeting sequence and LETM1 domain — preserve all elements. • Mitochondrial localization validation: confirm mitochondrial inner membrane localization by appropriate compartment markers. • Discovery-oriented rescue: parallel wild-type rescue during phenotypic characterization distinguishes LETMD1-dependent phenotypes. • Functional readout: rescue should restore phenotypes identified during knockout characterization. HEK293 transduces efficiently with lentivirus and supports stable rescue line generation.