Case53

HPOsFreeText: See Group Phenotypes

CasePreviousTesting: Sanger sequencing

CaseMethod1: Sanger sequencing and PCR Amplification

CaseMethod2: Whole Exome Sequencing (WES)

CaseGenotypingMethod: Patients were previously confirmed with Pompe disease by Sanger sequencing to capture the pathogenic variants. The process was repeated as part of the study taking care to amplify the coding regions and exon/intron boundaries to compare with the WES results afterwards.

Variant: NM_000152.4:c.1655T>C (p.Leu552Pro)

ClinVar: 279811 https://www.ncbi.nlm.nih.gov/clinvar/variation/279811/

gnomAD: European (Non-Finnish) 7.053e-5, Overall 3.188e-5 http://gnomad.broadinstitute.org/variant/17-78085800-T-C

CaseAddInfo: Juvenile Late Onset Pompe Disease

Case64

HPOsFreeText: See Group Phenotypes

CasePreviousTesting: Sanger sequencing

CaseMethod1: Sanger sequencing and PCR Amplification

CaseMethod2: Whole Exome Sequencing (WES)

CaseGenotypingMethod: Patients were previously confirmed with Pompe disease by Sanger sequencing to capture the pathogenic variants. The process was repeated as part of the study taking care to amplify the coding regions and exon/intron boundaries to compare with the WES results afterwards.

Variant1: NM_000152.4:c.1655T>C (p.Leu552Pro)

ClinVar: 279811 https://www.ncbi.nlm.nih.gov/clinvar/variation/279811/

gnomAD: European (Non-Finnish) 7.053e-5, Overall 3.188e-5 http://gnomad.broadinstitute.org/variant/17-78085800-T-C

Variant2: 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

CaseAddInfo: Adult Late Onset Pompe Disease

Case9: Female, 34 years report

HPOsFreeText: 6 years of ERT completed, 6 Minute Walking Test at 452 meters, Forced Vital Capacity at 76%

GenotypingMethod: GAA Gene Sequencing

Variant1: NM_000152.4:c.1655T>C (p.Leu552Pro)

ClinVar: 279811 https://www.ncbi.nlm.nih.gov/clinvar/variation/279811/

gnomAD: European (Non-Finnish) 7.053e-5, Overall 3.188e-5 http://gnomad.broadinstitute.org/variant/17-78085800-T-C

Variant2: NM_000152.4:c.1688A>T (p.Gln563Leu)

CAID: CA401368995 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvs=NM_000152.4%3Ac.1688A%3ET

gnomAD: Not in gnomAD

CaseAddInfo: Late Onset Pompe Disease

Case# Patient 1, male

CasePresentingHPOs: HP:0003236

CaseAddInfo: 14yo at onset, 16 at diagnosis

VariantAllele1: NM_000152.4(GAA):c.-32-13T>G

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

gnomAD: 0.003582, http://exac.broadinstitute.org/variant/17-78078341-T-G

VariantAllele2: NM_000152.4(GAA):c.1655T>C (p.Leu552Pro

ClinVar: 279811; https://www.ncbi.nlm.nih.gov/clinvar/variation/279811/

gnomAD: 1.663e-05; http://exac.broadinstitute.org/variant/17-78085800-T-C

Case#: Subject number 8(L)

DiseaseAssertion: Late Onset Pompe disease

FamilyInfo: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: CK testing: 365 U/L (60-305 U/L is normal), Hex4: 5.23 mmol/mol Creatinine (≤8.9 mmol/mol Creatinine is normal)

glucosidase activity: GAA activity #1 was 0.83 micromole/L/h and GAA activity #2 (NBS) 0.85 in dried blood spots (>2.10 micromole/L/h is normal). 0.93 in confirmatory testing (>3.88 is normal).

Variant 1: NM_000152.5(GAA):c.-32-13T>G

Variant 1 ClinVarID: 4027

Variant 1 CAid: CA116606

Variant 2: NM_000152.5(GAA):c.1655 T>C

Variant 2 ClinVarID: 279811

Variant 2 CAid: CA8815429

Zygosity: compound heterozygous

ParentalGenotype: N/A

PreviouslyPublished: N/A

Case#: 2/a, age 20, age 14 (report)

DiseaseAssertion: Pompe Disease

FamilyInfo: Family 2, no further information

CasePresenting HPOs:HP:0002878, HP:0012378, HP:0003546, HP:0001324 (Respiratory failure, fatigue, exercise intolerance, muscle weakness)

CaseHPOFreeText: valvular myopathy, biopsy with vacuolar myopathy with PAS +

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: single gene sequencing/analysis, 64.47 NaG/AaGIA, 92.28% inhibition of GAA; NaG/AaGIA above 40 and %INH above 87 are in the affected range

Variants:

Variant 1:NM_000152.5(GAA):c.377G>A (p.Trp126Ter)

ClinVar: 932904

Variant 2: NM_000152.5(GAA):c.1655T>C (p.Leu552Pro)

ClinVar: 279811

ParentalGenotypes: N/A

PreviouslyPublished: N/A

Case#: Subject number 7, male, 31 years (report)

DiseaseAssertion: Pompe disease

FamilyInfo: No known family member with PD

CasePresentingHPOs: HP:0002153 (hyperkalemia), HP:0001324 (muscle weakness)

CaseHPOFreeText:

CaseNotHPOs: HP:0001638 (cardiomyopathy), HP:0003546 (Exercise intolerance), HP:0001252 (Hypotonia), HP:0003326 (Myalgia), HP:0002015 (dysphagia), HP:0002098 (respiratory distress), HP:0002094 (dyspnoea)

CaseNotHPOFreeText: no biopsy, not asymptomatic

CasePreviousTesting: "Enzymatic activity was detected by fluorometric techniques" "The GAA sequence was performed in all patients whose enzyme activity measured in DBS and lymphocytes was decreased."

glucosidase activity: GAA activity was 0.27 mol/Lh in dried blood spots (normal range >0.75).

Variant 1: NM_000152.5(GAA):c.-32-13T>C

Variant 1 ClinVarID: 4027

Variant 1 CAid: CA116606

Variant 2: NM_000152.5(GAA):c.1655T>C (p.Leu552Pro)

Variant 2 ClinVarID: 279811

Variant 2 CAid: CA8815429

Zygosity: Compound heterozygous

ParentalGenotype: N/A

PreviouslyPublished: N/A