Case14: Female, 15 years onset, 16 years diagnosis, Italy

HPOsFreeText: See Group Phenotypes, ERT started at 16, GAA Activity at ~8 pmol/min/mg before ERT and ~12 after

GroupGenotypingMethod: PCR Amplification and GAA Gene Sequencing

Variant1: NM_000152.4:c.-32-13T>G

ClinVar: 4027 https://www.ncbi.nlm.nih.gov/clinvar/variation/4027/

gnomAD: Ashkenazi Jewish 5.541e-3, Overall 3.401e-3 http://gnomad.broadinstitute.org/variant/17-78078341-T-G

Variant2: NM_000152.4:c.1927G>A (p.Gly643Arg)

ClinVar: 4023 https://www.ncbi.nlm.nih.gov/clinvar/variation/4023/

gnomAD: European (Non-Finnish) 3.667e-5, Overall 2.479e-5 http://gnomad.broadinstitute.org/variant/17-78086713-G-A

CaseAddInfo: Late Onset Pompe Disease

Patient13: female

CasePresentingHPOs: HP:0004887, HP:0011471, HP:0001270, HP:0002546, HP:0000365

HPOsFreeText: CRIM positive, tracheostomy, partial heart normalization

CaseNotHPOs: HP:0001371

NotHPOsFreeText: infusion associated reaction

CaseAddInfo: variants in trans, symptom onset at 6yo, diagnosis and ERT at 11yo

CasePreviousTesting: same as group

CaseGenotypingMethod: same as group

Variant1: NM_000152.4(GAA):c.236_246delCCACACAGTGC (p.Pro79Argfs)

ClinVar: 371302, https://www.ncbi.nlm.nih.gov/clinvar/variation/371302/

gnomAD: n/a

Variant2: NM_000152.4(GAA):c.1927G>A (p.Gly643Arg)

ClinVar: 4023, https://www.ncbi.nlm.nih.gov/clinvar/variation/4023/

gnomAD: 5.884e-05, http://exac.broadinstitute.org/variant/17-78086713-G-A