Plays a role in biomineralization. Seems to regulate the formation of crystallites during the secretory stage of tooth enamel development. Thought to play a major role in the structural organization and mineralization of developing enamel.
Defects in AMELX are the cause of amelogenesis imperfecta hypoplastic type 1 (AIH1) [MIM:301200]. AIH1 is a X-linked defect of dental enamel formation. Teeth have only a thin layer of enamel with normal hardness. The thinness of the enamel makes the teeth appear small.
Belongs to the amelogenin family.
Transiently but abundantly expressed by ameloblasts during tooth development. Amelogenin is the predominant protein in developing dental enamel.
Secreted > extracellular space > extracellular matrix.