Case#: Patient 9, female, 1 year (age at presentation).

DiseaseAssertion: MPS1-H

FamilyInfo: Consanguinity in the family present for this patient.

CasePresentingHPOs: Corneal clouding, coarse facial features, dysostosis multiplex, global developmental delay, hepatomegaly, joint stiffness, splenomegaly, recurrent respiratory infections, umbilical hernia (HP:0007957, HP:0000256, HP:0000943, HP:0001263, HP:0002240, HP:0001387, HP:0001744, HP:0002205, HP:0001537)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: N/A

CaseUrineGAGs: N/A

CaseERT: N/A

CaseBMT: N/A

Variant1: c.362T>C (p.L121P)

Variant1ClinVarID: 1343382

Variant1CAID: CA355961174

Variant2: c.362T>C (p.L121P)

Variant2ClinVarID: 1343382

Variant2CAID: CA355961174

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: Patient 7, male, 1 month (age at presentation).

DiseaseAssertion: MPS1-H

FamilyInfo: Consanguinity in the family not present for this patient. Family conducted a prenatal diagnosis on the next pregnancy and CVS to be unaffected

CasePresentingHPOs: Corneal clouding, coarse facial features, dysostosis multiplex, global developmental delay, hepatomegaly, joint stiffness, splenomegaly, umbilical hernia (HP:0007957, HP:0000256, HP:0000943, HP:0001263, HP:0002240, HP:0001387, HP:0001744, HP:0001537)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: N/A

CaseUrineGAGs: N/A

CaseERT: N/A

CaseBMT: N/A

Variant1: c.362T>C (p.L121P)

Variant1ClinVarID: 1343382

Variant1CAID: CA355961174

Variant2: c.362T>C (p.L121P)

Variant2ClinVarID: 1343382

Variant2CAID: CA355961174

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: Patient 8, female, 5 months (age at presentation).

DiseaseAssertion: MPS1-H

FamilyInfo: Consanguinity in the family not present for this patient.

CasePresentingHPOs: Corneal clouding, coarse facial features, dysostosis multiplex, global developmental delay, hepatomegaly, joint stiffness, splenomegaly (HP:0007957, HP:0000256, HP:0000943, HP:0001263, HP:0002240, HP:0001387, HP:0001744)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: N/A

CaseUrineGAGs: N/A

CaseERT: N/A

CaseBMT: N/A

Variant1: c.362T>C (p.L121P)

Variant1ClinVarID: 1343382

Variant1CAID: CA355961174

Variant2: c.362T>C (p.L121P)

Variant2ClinVarID: 1343382

Variant2CAID: CA355961174

AdditionalVariants: N/A

ParentalGenotype: Mother and father are both carriers

PreviouslyPublished N/A

Case#: Patient 6, 1 years old (age at report), male, Indian

DiseaseAssertion: MPS1-H

FamilyInfo: N/A

CasePresentingHPOs: Coarse facial features, hepatosplenomegaly, joint contractures, corneal clouding, recurrent infections, dysostosis multiplex, intellectual disability (HP:0000280, HP:0001433, HP:0002828, HP:0007957, HP:0002719, HP:0000943, HP:0001249)

CaseHPOFreeText: Cardiac disease

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: 2.7% (Range of residual enzyme activity: 0.0%-4.8%)

CaseUrineGAGs: N/A

CaseERT: N/A

CaseBMT: N/A

Variant1: c.362T>C (p.Leu121Pro)

Variant1ClinVarID: 1343382

Variant1CAID: CA355961174

Variant2: c.362T>C (p.Leu121Pro)

Variant2ClinVarID: 1343382

Variant2CAID: CA355961174

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A