Case#: Patient 51, female, Han origin, 1 year 6 months old (age at diagnosis)

DiseaseAssertion: MPS1-H

FamilyInfo: N/A

CasePresentingHPOs: Global Developmental Delay, Macrocephaly, Joint stiffness, Mongolian macula, Hepatosplenomegaly, Hernia, Airway obstruction (HP:0001263, HP:0000256, HP:0001387, HP:0011369, HP:0001433, HP:0100790, HP:0006536)

CaseHPOFreeText: Cardiac disease

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: IDUA activity 0.4 nmol/h/mg protein. The normal range in Chinese controls was found to be 27.2–52 nmol/h/mg protein.

CaseUrineGAGs: Diagnosis was confirmed biochemically by the demonstration of an increased excretion of urinary dermatan sulfate and heparan sulfate.

CaseERT: N/A

CaseBMT: N/A

Variant1: c.46_57del12 (p.Ser16_Ala19del)

Variant1ClinVarID: 92643

Variant1CAID: CA220509

Variant2: c.792+1G>C

Variant2ClinVarID: N/A

Variant2CAID: CA355962280

AdditionalVariants: N/A

ParentalGenotype: Father - c.46-57del12, Mother - c.792+1G>C. The transmission of sequence variations found in each patient was inferred by sequencing the corresponding exons of the patient's parents - confirmed in trans by parental testing.

PreviouslyPublished N/A

Case#: Patient 41, male, Han origin, 2 years old (age at diagnosis)

DiseaseAssertion: MPS1-H

FamilyInfo: N/A

CasePresentingHPOs: Global Developmental Delay, Macrocephaly, Joint stiffness, Mongolian macula, Hepatosplenomegaly, Hernia, Airway obstruction (HP:0001263, HP:0000256, HP:0001387, HP:0011369, HP:0001433, HP:0100790, HP:0006536)

CaseHPOFreeText: Cardiac disease

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: IDUA activity 1.4 nmol/h/mg protein. The normal range in Chinese controls was found to be 27.2–52 nmol/h/mg protein.

CaseUrineGAGs: Diagnosis was confirmed biochemically by the demonstration of an increased excretion of urinary dermatan sulfate and heparan sulfate.

CaseERT: N/A

CaseBMT: N/A

Variant1: c.792+1G>C

Variant1ClinVarID: N/A

Variant1CAID: CA355962280

Variant2: c.1-2C>G

Variant2ClinVarID: N/A

Variant2CAID: CA2586973510

AdditionalVariants: N/A

ParentalGenotype: The transmission of sequence variations found in each patient was inferred by sequencing the corresponding exons of the patient's parents - confirmed in trans by parental testing.

PreviouslyPublished N/A