Geng Y, Derry J M, Hendrickx J, Coucke P, Willems P R, Barnard P J
MRC Molecular Neurobiology Unit, MRC Centre, Cambridge, United Kingdom.
Genomics. 1993 Jan;15(1):191-3. doi: 10.1006/geno.1993.1031.
Phosphorylase kinase (PHK) is a regulatory enzyme of the glycogenolytic pathway composed of a complex of four subunits. We recently mapped the muscle alpha-subunit gene (Phka) to the mouse X chromosome in a region syntenic with the proximal long arm of the human X chromosome and containing the human homologue of this gene, PHKA. We now report the mapping of the liver alpha-subunit gene to the telomeric end of the mouse X chromosome. This mapping position would suggest a location for the human liver alpha-subunit gene on the proximal short arm of the X chromosome, a region recently implicated in X-linked liver glycogenosis (XLG).