FAM162A (family with sequence similarity 162 member A) is a mitochondrial protein that plays a critical role in regulating apoptosis, particularly under hypoxic conditions. The protein is localized to the cristae of mitochondria, as confirmed by integrative molecular dynamics simulations and super-resolution microscopy 1. FAM162A promotes apoptotic processes through multiple mechanisms, including facilitating cytochrome C release from mitochondria and activating caspases such as CASP9, while also inducing mitochondrial permeability transition 2. In neuronal cells, the protein may promote apoptosis by facilitating the release of AIFM1 from mitochondria to the cytoplasm and its nuclear translocation. FAM162A expression is upregulated in response to hypoxic stress and during pathological conditions including chr3 cerebral ischemia 3. The gene serves as a prognostic biomarker in multiple cancer types, including osteosarcoma and colon cancer, where its expression correlates with patient outcomes 456. In cardiac tissue, FAM162A is enriched in cardiomyocytes and shows differential expression patterns in heart disease models, suggesting potential therapeutic relevance 7. The protein's role in hypoxia-induced apoptosis makes it particularly relevant for understanding tumor biology and ischemic injury responses.