Disorders

PHKA1-Related Phosphorylase Kinase Deficiency

Synonym(s): Glycogen Storage Disease Type IXd, PHKA1-Related Glycogen Storage Disease Type IX

Gene	Locus	Protein
PHKA1	Xq12-q13	Phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform

Laboratory	Test Method	Prenatal	Carrier *
Baylor College of Medicine, Medical Genetics Laboratories - Houston, TX, USA	• Sequence analysis of the entire coding region • Deletion/duplication analysis
Centogene AG, Rare Disease Company - Rostock, Germany	• Sequence analysis of the entire coding region • Deletion/duplication analysis
PreventionGenetics, Clinical DNA Testing and DNA Banking - Marshfield, WI, USA	• Sequence analysis of the entire coding region • Deletion/duplication analysis
Universidad Autonoma de Madrid, Centro de Diagnostico de Enfermedades Moleculares - Madrid, Spain	• Sequence analysis of the entire coding region

^* Carrier column is relevant to autosomal recessive and X-linked inheritance; column will be blank when it is not relevant (e.g. autosomal dominant inheritance, microdeletions/duplications) and/or is not offered by the lab.