ALX homeobox protein 1 (ALX1)

ALX homeobox protein 1 (ALX1) is a sequence-specific DNA-binding transcription factor belonging to the homeobox protein family, involved in directing embryonic development of craniofacial structures such as the eyes, nose, and mouth. It acts by binding to palindromic DNA sequences within promoters and modulating the expression (activation or repression) of genes controlling cell growth, proliferation, and migration during early development. Loss-of-function mutations in ALX1 disrupt these developmental processes, resulting in conditions such as frontonasal dysplasia type 3, characterized by severe facial malformations including eye, nasal, and oral defects. ALX1 exerts its function primarily in the nucleus, engaging in homodimerization and potentially interacting with other proteins (e.g., IPO13). There is currently no evidence that ALX1 serves as a direct therapeutic target, nor are any drugs known to modulate its activity in clinical practice.

Other names

CART1CART-1cartilage paired-class homeoprotein 1FND3HEL23epididymis luminal protein 23