Description : Advanced sleep phase syndrome is characterized by very early sleep onset and offset
(summary by Jones et al., 1999). - Genetic Heterogeneity of Advanced Sleep Phase Syndrome
See also FASPS2 (615224), caused by mutation in the CSNK1D gene (600864) on chromosome
17q25.;
Inheritance : Autosomal dominant;
Molecular basis : Caused by mutation in the period circadian regulator 2 gene (PER2, 603426.0001);