CDGSH iron-sulfur domain-containing protein 1 (mitoNEET) (mitoNEET)

CDGSH iron-sulfur domain-containing protein 1, commonly known as mitoNEET, is a specialized [2Fe-2S] cluster-containing protein anchored to the outer mitochondrial membrane. It serves as a critical regulator of mitochondrial bioenergetics, iron homeostasis, and cellular redox sensing by facilitating the transfer of iron-sulfur clusters to cytosolic acceptor proteins [1][6][11]. Discovered as a high-affinity target for thiazolidinedione (TZD) drugs like pioglitazone, mitoNEET represents a mitochondrial pathway for insulin sensitization distinct from the traditional PPAR-gamma receptor activation [1][13]. In metabolic diseases such as Type 2 diabetes and obesity, pharmacological ligands stabilize its iron-sulfur clusters to modulate mitochondrial respiratory capacity and reduce oxidative stress [4][7]. Beyond metabolism, mitoNEET is increasingly recognized for its role in cancer, where it promotes tumor proliferation by maintaining mitochondrial integrity, and in neurodegenerative disorders like Alzheimer’s and Parkinson’s, where its dysfunction contributes to neuroinflammation [3][5][15]. Therapeutic strategies targeting this molecule aim to fine-tune mitochondrial iron levels and redox signaling to alleviate metabolic and age-related pathologies [10][18].

Other names

CISD1ZCD1mNEETMitochondrial outer membrane protein mitoNEETCDGSH iron-sulfur domain 1

Ligand binding stabilizes the [2Fe-2S] clusters against pH-dependent release and inhibits the protein's redox enzyme activity, specifically electron transfer from FMNH2 to oxygen or ubiquinone, thereby modulating mitochondrial respiratory capacity and iron levels.