What is "amelx"

Amelogenin, X isoform is a protein that in humans is encoded by the AMELX (amelogenin, X isoform) gene.

The protein Amelogenin, X isoform is an isoform of amelogenin that comes from the X chromosome. The protein Amelogenin is a type of extracellular matrix protein, and is involved in the progcess of amelogenesis, the formation of enamel on teeth. Amelogenin X is a member of the amelogenin family of extracellular matrix proteins. When alternative splicing occurs, it results in multiple transcript variants encoding different isoforms, which in humans results in amelogenin genes on both the X and Y chromosomes.