Neuronal differentiation factor 4 (NEUROD4)

Neuronal differentiation factor 4 (NEUROD4) is a basic helix-loop-helix (bHLH) transcription factor belonging to the atonal family, which acts as a master regulator of neurogenesis during development[1][2][4]. It functions by binding to E-box DNA sequences and activating transcription of genes necessary for neuronal differentiation, serving important roles in the regulation and commitment of progenitor cells to neuronal lineages[1][2][3]. NEUROD4 is especially important in the developing brain and retina, where it regulates amacrine cell fate specification and promotes neurogenesis[1][2][4]. Its activity is tightly regulated by multi-site phosphorylation, which modulates its protein stability and DNA binding capacity, allowing for dynamic control over neuronal differentiation according to the cellular kinase environment[2][4]. NEUROD4 is expressed predominantly in neural tissues—especially the ventricular zone of the developing dorsal telencephalon in the embryo[4]—and remains active in some adult brain regions[4]. While NEUROD4 is not itself a common therapeutic target, it is essential for proper neural development, and variants have been linked to select congenital disorders such as cardiac valvular dysplasia and panhypopituitarism[1].

Other names

NeuroD4ATH3ATOH3BHLHA4bHLHa4MATH-3MATH3neurogenic differentiation factor 4class A basic helix-loop-helix protein 4protein atonal homolog 3