NmrA-like family domain-containing protein 1 (NMRAL1)

Redox sensor protein. Undergoes restructuring and subcellular redistribution in response to changes in intracellular NADPH/NADP(+) levels.

At low NADPH concentrations the protein is found mainly as a monomer, also binds argininosuccinate synthase (ASS1), the enzyme involved in nitric oxide synthesis. Association with ASS1 impairs its action and reduces the production of nitric oxide, which subsecuently prevents apoptosis.