VSX1

Visual system homeobox 1 is a is_associated_with::protein that in humans is encoded by the VSX1 is_associated_with::gene.

The is_associated_with::protein encoded by this gene contains a paired-like homeodomain and binds to the core of the locus control region of the red/green visual pigment gene cluster. The encoded protein may regulate expression of the cone is_associated_with::opsin genes early in development. is_associated_with::Mutations in this gene can cause is_associated_with::posterior polymorphous corneal dystrophy (PPCD) and is_associated_with::keratoconus. Two transcript variants encoding different isoforms have been found for this gene.