TIMM44 is an essential component of the PAM (presequence translocase-associated motor) complex within the inner mitochondrial membrane, functioning as a critical regulator of mitochondrial protein import. TIMM44 recruits mitochondrial HSP70 to the TIM23 translocase complex, driving ATP-dependent translocation of transit peptide-containing proteins into the mitochondrial matrix 1. The protein directly interacts with ANT (adenine nucleotide translocator) and regulates peptide import through TIM23 1, positioning it as a key node in mitochondrial homeostasis. TIMM44 dysfunction has significant disease implications across multiple pathologies. In heart failure patients, TIMM44 expression is substantially downregulated as part of widespread mitochondrial quality control deficiency 2. Conversely, TIMM44 is upregulated in cancer contexts: elevated expression correlates with poor prognosis in glioma 3, and pharmacological TIMM44 inhibition (MB-10) suppresses bladder cancer cell growth through mitochondrial depolarization and ATP depletion 4. TIMM44 is also required for angiogenesis in endothelial cells; its silencing or pharmacological blockade impairs mitochondrial function and inhibits capillary tube formation both in vitro and in vivo 5. In metabolic disease, TIMM44 overexpression in adipose tissue protects against type 2 diabetes by promoting mitochondrial fusion and enhancing insulin sensitivity 6. These findings establish TIMM44 as a versatile therapeutic target with potential across cancer, cardiovascular, metabolic, and vascular diseases.