Dual oxidase maturation factor 1 (DUOXA1)

Dual oxidase maturation factor 1 (DUOXA1) is a membrane-associated regulatory protein essential for the maturation, stability, and plasma membrane localization of the NADPH oxidase DUOX1. DUOXA1 forms a complex with DUOX1 in the endoplasmic reticulum, promoting its correct folding, assembly, and trafficking. The active DUOX1–DUOXA1 complex is required for calcium-regulated, NADPH-dependent hydrogen peroxide production at the cell surface, a process vital for thyroid hormone synthesis and additional roles in host defense and cellular signaling. DUOXA1 additionally participates in p53-dependent neuronal differentiation and modulates reactive oxygen species levels, influencing cell differentiation, apoptosis, and disease processes such as cancer and thyroid dyshormonogenesis. Mutations or dysregulation of DUOXA1 can lead to impaired hydrogen peroxide generation, defective thyroid hormonogenesis, or abnormal cell fate decisions linked to disease[1][2][4][5][6].

Other names

Dual oxidase activator 1Numb-interacting proteinNUMBIPNIPFLJ32334mol

Enables maturation and plasma membrane trafficking of DUOX1, facilitating hydrogen peroxide production essential for thyroid hormonogenesis and other ROS-dependent cell functions[1][4]