NK6 homeobox 2 (NKX6-2)

NK6 homeobox 2 (NKX6-2) is a transcription factor from the homeobox protein family, encoded by the NKX6-2 gene on chromosome 10 in humans[3][4]. It is highly expressed in the developing fetal brain, adult CNS, and testes, where it regulates the differentiation and maturation of oligodendrocytes, essential for central nervous system myelination[1][2][3][4]. NKX6-2 controls key developmental processes including cell fate specification in neural and pancreatic lineages. Pathogenic mutations—often affecting its DNA-binding homeobox domain—cause severe neurodevelopmental disorders such as hypomyelinating leukodystrophy and spastic ataxia, manifesting as motor delay, cerebellar atrophy, nystagmus, and developmental regression[1][2][3][4]. NKX6-2 also modulates gene expression in certain cancers by binding promoter regions to suppress oncogenic signaling[1][3]. Currently, NKX6-2 is not a direct drug target, but its function may be leveraged in cellular reprogramming or as a diagnostic biomarker in select CNS and cancer disorders[1][2][3][4].

Other names

Homeobox protein Nkx-6.2NKX6.2NKX6BGTXSPAX8homeobox protein NK-6 homolog Bglial and testis-specific homeobox proteinhomeobox 6B