Case#: Patient 9, male, Han origin, 8 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Joint stiffness, Hepatosplenomegaly, Airway obstruction (HP:0001387, HP:0001433, HP:0006536)

CaseHPOFreeText: N/A

CaseNotHPOs: Global Developmental Delay, Macrocephaly, Mongolian macula, Hernia (HP:0001263, HP:0000256, HP:0011369, HP:0100790)

CaseNotHPOFreeText: Cardiac disease

CaseEnzymeAssay: IDUA activity 0.2 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.1037T>G (p.L346R)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.156C>G (p.F52L)

Variant2ClinVarID: 554280

Variant2CAID: CA355945700

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