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Paediatric or syndromic cardiomyopathy

Gene: GAA

Green List (high evidence)

GAA (glucosidase alpha, acid)
EnsemblGeneIds (GRCh38): ENSG00000171298
EnsemblGeneIds (GRCh37): ENSG00000171298
OMIM: 606800, Gene2Phenotype
GAA is in 20 panels

3 reviews

Ivone Leong (Genomics England Curator)

Green List (high evidence)

Submitted on behalf of the GMS Cardiology specialist group. The group has agreed that this gene should be Green on this panel.
Created: 2 Dec 2019, 3:58 p.m. | Last Modified: 2 Dec 2019, 3:58 p.m.
Panel Version: 0.16

Ellen McDonagh (Genomics England Curator)

Green List (high evidence)

This gene was included in Table 1 for a diagnostic test from the MetBioNet guideline - see publications field for URL to the guideline.
Created: 18 Apr 2019, 11:53 a.m.

Glycogen storage disease type II (Pompe disease); Hypotonia, muscle weakness, progressive respiratory failure; HCM, mixed


  • National Metabolic Biochemistry Network Best Practice Guidelines Investigation of An Inherited Metabolic Cause of Cardiomyopathy, Authors: Ann Bowron, Simon Olpin (13 Jul 2012)

Rebecca Whittington (South West GLH)

Green List (high evidence)

Glycogen storage disease II OMIM#232300
Created: 25 Mar 2019, 4:30 p.m.
Cardiomyopathy is a feature in the infantile forms of Pompe disease - Indeed, Pompe (1932) reported this condition as 'idiopathic hypertrophy of the heart,' and 'cardiomegalia glycogenica' is a synonym. Slonim et al. (2000) proposed a second, milder subtype of the infantile form. They reported 12 infants who showed less severe cardiomyopathy, absence of left ventricular outflow obstruction, and traces (less than 5%) of residual acid maltase activity; 9 of the 12 had longer survival with assisted ventilation and intubation.
Created: 25 Mar 2019, 4:27 p.m.

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Variants in this GENE are reported as part of current diagnostic practice

History Filter Activity

2 Dec 2019, Gel status: 3

Added New Source

Ivone Leong (Genomics England Curator)

Source NHS GMS was added to GAA.

4 Sep 2019, Gel status: 3

Created, Added New Source, Set mode of inheritance, Set Phenotypes

Ivone Leong (Genomics England Curator)

gene: GAA was added gene: GAA was added to Cardiomyopathies - including childhood onset. Sources: Expert Review Green,MetBioNet,London South GLH,South West GLH Mode of inheritance for gene: GAA was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: GAA were set to Hypotonia, muscle weakness, progressive respiratory failure; syndromic HCM; HCM, mixed; Glycogen storage disease II, 232300; Glycogen storage disease type II (Pompe disease)