Case#: MPS I_Case 02, female newborn

DiseaseAssertion: MPS type I, MPS I, MPS-I, attenuated MPS I

FamilyInfo: MPS I_Case 02 and MPS I_Case 03 are twins

CasePresentingHPOs:

CaseHPOFreeText:

CaseNotHPOs:

CaseNotHPOFreeText: This proband is believed to be an affected MPS-patient however, the proband did not have any obvious clinical symptoms to date (up to two years of age). The paper states that this attenuated MPS I case will need a long term follow up.

CaseEnzymeAssay: Proband identified by newborn screening. alpha-L-iduronidase activity in dried blood spot sample is 0.59 umole/L/Hr; this is below the study's DBS enzyme activity cutoff value of 3 umol/L/h

CaseUrineGAGs: Urine DMB GAG ratio is 204.7mg/mmol creatinine. 99.60 ug/ml dermatan sulfate in urine (<0.41 ug/ml is the reference cutoff for dermatan sulfate in this study). 13.31 ug/ml heparan sulfate in urine (<0.8 ug/ml is the reference cutoff for heparan sulfate in this study). 0.83 ug/ml keratan sulfate in urine.

CaseERT: Don't know (would assume no since the proband is a newborn)

CaseBMT: Don't know (would assume no since the proband is a newborn)

Variant1: c.1037T>G, p.L346R

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1091C>T, p.T364M

Variant2ClinVarID: 11925

Variant2CAID: CA256126

AdditionalVariants: No additional variants mentioned

ParentalGenotype: No parental testing results are available

PreviouslyPublished No statement from the author indicating the proband is previously published. Since this is a newborn study, I strongly believe this is the proband’s first time being published.

Case#: MPS I_Case 03, female newborn

DiseaseAssertion: MPS type I, MPS I, MPS-I, attenuated MPS I

FamilyInfo: MPS I_Case 03 and MPS I_Case 02 are twins

CasePresentingHPOs:

CaseHPOFreeText:

CaseNotHPOs:

CaseNotHPOFreeText: This proband is believed to be an affected MPS-patient however, the proband did not have any obvious clinical symptoms to date (up to two years of age). The paper states that this attenuated MPS I case will need a long term follow up.

CaseEnzymeAssay: Proband identified by newborn screening. alpha-L-iduronidase activity in dried blood spot sample is 0.51 umole/L/Hr; this is below the study's DBS enzyme activity cutoff value of 3 umol/L/h

CaseUrineGAGs: Urine DMB GAG ratio is 239.3 mg/mmol creatinine. 41.04 ug/ml dermatan sulfate in urine (<0.41 ug/ml is the reference cutoff for dermatan sulfate in this study). 2.93 ug/ml ug/ml heparan sulfate in urine (<0.8 ug/ml is the reference cutoff for heparan sulfate in this study). 0.00 ug/ml keratan sulfate in urine.

CaseERT: Don't know (would assume no since the proband is a newborn)

CaseBMT: Don't know (would assume no since the proband is a newborn)

Variant1: c.1037T>G, p.L346R

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1091C>T, p.T364M

Variant2ClinVarID: 11925

Variant2CAID: CA256126

AdditionalVariants: No additional variants mentioned

ParentalGenotype: No parental testing results are available

PreviouslyPublished No statement from the author indicating the proband is previously published. Since this is a newborn study, I strongly believe this is the proband’s first time being published.

Case#: Patient 31, female, Han origin, 9 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Macrocephaly, Joint stiffness, Hepatosplenomegaly, Airway obstruction (HP:0000256, HP:0001387, HP:0001433, HP:0006536)

CaseHPOFreeText: N/A

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

CaseNotHPOFreeText: Cardiac disease

CaseEnzymeAssay: IDUA activity 1.3 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.1037T>G (p.L346R)

Variant2ClinVarID: 11927

Variant2CAID: CA256128

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 by parental testing.

PreviouslyPublished N/A

Case#: Patient 44, male, Han origin, 21 years old (age at diagnosis)

DiseaseAssertion: MPS1-S

FamilyInfo: N/A

CasePresentingHPOs: Joint stiffness (HP:0001387)

CaseHPOFreeText: N/A

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

CaseNotHPOFreeText: Cardiac disease

CaseEnzymeAssay: IDUA activity 1.5 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.2T>C (p.Met1Thr)

Variant1ClinVarID: 639529

Variant1CAID: CA2801095

Variant2: c.1037T>G (p.L346R)

Variant2ClinVarID: 11927

Variant2CAID: CA256128

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

Case#: Patient 8, male, Han origin, 6 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Macrocephaly, Joint stiffness, Hepatosplenomegaly, Airway obstruction (HP:0000256, HP:0001387, HP:0001433, HP:0006536)

CaseHPOFreeText: N/A

CaseNotHPOs: Global Developmental Delay, Mongolian macula, Hernia (HP:0001263, 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.1402+2T>G

Variant2ClinVarID: 553131

Variant2CAID: CA355964392

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

Case#: Patient 29, male, Han origin, 11 years old (age at diagnosis)

DiseaseAssertion: MPS1-S

FamilyInfo: N/A

CasePresentingHPOs: Macrocephaly, Joint stiffness, Hepatosplenomegaly, Hernia, Airway obstruction (HP:0000256, HP:0001387, HP:0001433, HP:0100790, HP:0006536)

CaseHPOFreeText: Cardiac disease

CaseNotHPOs: Global Developmental Delay, Mongolian macula (HP:0001263, HP:0011369)

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: IDUA activity 1.2 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.1898C>T (p.S633L)

Variant2ClinVarID: 556406

Variant2CAID: CA355966010

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

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

Case#: Patient 25, male, Han origin, 10 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Macrocephaly, Joint stiffness, Hepatosplenomegaly, Hernia, Airway obstruction (HP:0000256, HP:0001387, HP:0001433, HP:0100790, HP:0006536)

CaseHPOFreeText: Cardiac disease

CaseNotHPOs: Global Developmental Delay, Mongolian macula (HP:0001263, HP:0011369)

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: IDUA activity 1.2 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.1037T>G (p.L346R)

Variant2ClinVarID: 11927

Variant2CAID: CA256128

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 by parental testing.

PreviouslyPublished N/A

Case#: Patient 56, male, Han origin, 3 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

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 0.8 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.1210G>T (p.E404X)

Variant2ClinVarID: 552095

Variant2CAID: N/A

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

Case#: Patient 49, male, Han origin, 7 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Macrocephaly, Joint stiffness, Mongolian macula, Hepatosplenomegaly (HP:0000256, HP:0001387, HP:0011369, HP:0001433)

CaseHPOFreeText: N/A

CaseNotHPOs: Global Developmental Delay, Hernia, Airway obstruction (HP:0001263, HP:0100790, HP:0006536)

CaseNotHPOFreeText: Cardiac disease

CaseEnzymeAssay: IDUA activity 1.2 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.236C>T (p.A79V)

Variant1ClinVarID: 1458769

Variant1CAID: CA356987

Variant2: c.1037T>G (p.L346R)

Variant2ClinVarID: 11927

Variant2CAID: CA256128

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

Case#: Patient 45, male, Han origin, 8 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Joint stiffness (HP:0001387)

CaseHPOFreeText: N/A

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

CaseNotHPOFreeText: Cardiac disease

CaseEnzymeAssay: IDUA activity 1.1 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.1037T>G (p.L346R)

Variant2ClinVarID: 11927

Variant2CAID: CA256128

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 by parental testing.

PreviouslyPublished N/A

Case#: Patient 36, female, Han origin, 5 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Macrocephaly, Joint stiffness, Hepatosplenomegaly, Airway obstruction (HP:0000256, HP:0001387, HP:0001433, HP:0006536)

CaseHPOFreeText: N/A

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

CaseNotHPOFreeText: Cardiac disease

CaseEnzymeAssay: IDUA activity 1.5 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.159C>A (p.C53X)

Variant1ClinVarID: 1458768

Variant1CAID: N/A

Variant2: c.1037T>G (p.L346R)

Variant2ClinVarID: 11927

Variant2CAID: CA256128

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

Case#: Patient 43, male, Han origin, 5 years old (age at diagnosis)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Joint stiffness, Mongolian macula, Hepatosplenomegaly, Hernia, Airway obstruction (HP:0001387, HP:0011369, HP:0001433, HP:0100790, HP:0006536)

CaseHPOFreeText: N/A

CaseNotHPOs: Global Developmental Delay, Macrocephaly (HP:0001263, HP:0000256)

CaseNotHPOFreeText: Cardiac disease

CaseEnzymeAssay: IDUA activity 1.5 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.300-3C>G

Variant1ClinVarID: 551563

Variant1CAID: CA549265042

Variant2: c.530dupT (p.Glu178ArgfsTer5) (Paper refers to the variant as c.531dupT, there is a typo in the article where all duplication variants are one base pair off)

Variant2ClinVarID: N/A

Variant2CAID: CA2586973520

AdditionalVariants: c.1037T>G (p.L346R)

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

Case#: Case 2, male, 5 years old (age at diagnosis).

DiseaseAssertion: MPS1

FamilyInfo: Proband's mother was pregnant and her genomic DNA was extracted from cultured amniocytes, her fetus acquired the same pathogenic gene as the proband and was affected.

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: Proband was diagnosed using enzymatic detection. IDUA enzyme activity in the mother's amniotic fluid cells in the 2nd pregnancy was 0.5 nmol/(h·mg protein).

CaseUrineGAGs: N/A

CaseERT: N/A

CaseBMT: N/A

Variant1: c.530dupT, in the article this is written as c.531insT (old nomenclature). Various variants from Wang articles have nomenclature errors that are 1 base pair off from the described variant.

Variant1ClinVarID: N/A

Variant1CAID: CA2586973520

Variant2: c.1037T>G (p.Leu346Arg)

Variant2ClinVarID: 11927

Variant2CAID: CA256128

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: II-2, Female, 2 years (onset), Chinese

DiseaseAssertion: MPS 1

FamilyInfo: I-1 and I-2 are the parents, II-4 is a full sibling of II-2 and a full child of I-1 and I-2. II-4 also carries the disease. (pedigree is figure # 1).

CasePresentingHPOs: HP:0001367, HP:0000622, HP:0007663, HP:0001718, HP:0001643, HP:0001698, HP:0000238, (Abnormal joints, Blurred vision, Decreased vision, Mitral stenosis (severe), Patent ductus arteriosus (tubular), Pericardial effusion (moderate), Hydrocephalus)

CaseHPOFreeText: Abnormal mitral valve development, Anterior mitral valve prolapses and insufficiency (moderate), Pulmonary hypertension (moderate), Bilateral temporal arachnoid cyst, Congenital spinal stenosis, Congenital glaucoma, Corneal gray degeneration, Corneal staphyloma

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: N/A

CaseUrineGAGs: N/A

CaseERT: N/A

CaseBMT: N/A

GenotypingMethod: Sanger Sequencing

Variant1: c.1037T>G

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.18115dupT

Variant2ClinVarID: 1454082

Variant2CAID: CA2573137507

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished: N/A

Case#: Infant #10, female.

DiseaseAssertion: MPS-I

FamilyInfo: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: 0.70 IDUA enzyme activity (Ref. 5.9–27.8 μmol/g protein/h)

CaseUrineGAGs: DMB/Cre. Ratio - 204.70, DS - 176.96, HS - 28.51, KS - 1.78 GAG quantifications (DMB/Cre ratio) and the normal reference values based on the age groups: <6 mos: <70.68 mg /mmol cre.; 6 mos–2 yrs: <46.80 mg /mmol cre.; 2–17 yrs: <20.98 mg /mmol cre.; and >18 yrs: <12.62 mg /mmol cre. Quantitative analyses of GAG-derived disaccharides (DS, S, or KS) by tandem mass spectrometry assay. The normal cut-off values: DS < 0.80 μg/mL; HS < 0.78 μg/mL; and KS < 7.90 μg/mL.

CaseERT: N/A

CaseBMT: N/A

Variant1: c.1037T>G (p.L346R)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1091C>T (p.T364M) Article has (p.364M) which appears to be a typo.

Variant2ClinVarID: 11925

Variant2CAID: CA256126

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: Infant #11, female.

DiseaseAssertion: MPS-I

FamilyInfo: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: 0.80 IDUA enzyme activity (Ref. 5.9–27.8 μmol/g protein/h)

CaseUrineGAGs: DMB/Cre. Ratio - 239.25, DS - 296.10, HS - 33.55, KS - 1.37 GAG quantifications (DMB/Cre ratio) and the normal reference values based on the age groups: <6 mos: <70.68 mg /mmol cre.; 6 mos–2 yrs: <46.80 mg /mmol cre.; 2–17 yrs: <20.98 mg /mmol cre.; and >18 yrs: <12.62 mg /mmol cre. Quantitative analyses of GAG-derived disaccharides (DS, S, or KS) by tandem mass spectrometry assay. The normal cut-off values: DS < 0.80 μg/mL; HS < 0.78 μg/mL; and KS < 7.90 μg/mL.

CaseERT: N/A

CaseBMT: N/A

Variant1: c.1037T>G (p.L346R)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1091C>T (p.T364M) Article has (p.364M) which appears to be a typo.

Variant2ClinVarID: 11925

Variant2CAID: CA256126

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: Patient 6, female, twin of Patient 5 (see Table 1)

DiseaseAssertion: MPS I

FamilyInfo: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: Low IDUA enzyme activity 0.75 (Ref. 4.87 ~ 54.70 μmol/g protein/h)

CaseUrineGAGs: Positive GAG tests

CaseERT: N/A

CaseBMT: N/A

Variant1: c.1037T>G (p.L346R)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1091C>T (p.T364M)

Variant2ClinVarID: 11925

Variant2CAID: CA256126

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: Patient 5, female, twin of Patient 6 (see Table 1)

DiseaseAssertion: MPS I

FamilyInfo: N/A

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: Low IDUA enzyme activity 0.81 (Ref. 4.87 ~ 54.70 μmol/g protein/h)

CaseUrineGAGs: Positive GAG tests

CaseERT: N/A

CaseBMT: N/A

Variant1: c.1037T>G (p.L346R)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1091C>T (p.T364M)

Variant2ClinVarID: 11925

Variant2CAID: CA256126

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: TW1-2 ID number, Table S1.1 of Supplementary Material. Female, 1-2 years old (age at first symptoms), 3 years and 2 months old (age at diagnosis). Stored Frozen (-20ºC).

DiseaseAssertion: Severe MPS-I

FamilyInfo: Twin of patient TW1-3.

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: N/A

CaseUrineGAGs: 615 fmol/punch

CaseERT: N/A

CaseBMT: N/A

Variant1: c.1037T>G (p.L346R)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1091C>T (p.T364M)

Variant2ClinVarID: 11925

Variant2CAID: CA256126

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: TW1-3 ID number, Table S1.1 of Supplementary Material. Female, 1-2 years old (age at first symptoms), 1 year and 6 months old (age at diagnosis). Stored Frozen (-20ºC)

DiseaseAssertion: Severe MPS-I

FamilyInfo: Twin of patient TW1-2.

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: N/A

CaseUrineGAGs: 589 fmol/punch

CaseERT: N/A

CaseBMT: N/A

Variant1: c.1037T>G (p.L346R)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1091C>T (p.T364M)

Variant2ClinVarID: 11925

Variant2CAID: CA256126

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: Patient 7 was biochemically diagnosed with MPS I because they showed an increase in urinary GAGs and a reduction in IDUA activity in leukocytes. Patient 7 was diagnosed at 2 years and 11 months.

DiseaseAssertion: MPSI-S

FamilyInfo: N/A

CasePresentingHPOs: Coarse facies, corneal clouding, skeletal abnormalities, cardiac abnormalities, and hepatosplenomegaly (HP:0000256, HP:0007957, HP:0002360, HP:0001627, HP:0001433)

CaseHPOFreeText: N/A

CaseNotHPOs: Growth delay, hernias, intellectual disability (HP:0001510, HP:0100790, HP:0001249)

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: IDUA activity of 2.35 nmol/mg/protein/hr. No reference range provided.

CaseUrineGAGs: 1011.7 CPC unit/g creatinine. No reference range provided.

CaseERT: N/A

CaseBMT: N/A

Variant1: c.1037T>G (p.L346R)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.1037T>G (p.L346R)

Variant2ClinVarID: 11927

Variant2CAID: CA256128

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished N/A

Case#: Variant not associated with a proband. Variant listed in supplementary materials in Supplementary Table 4

DiseaseAssertion: Mucopolysaccharidosis type I, MPS I

FamilyInfo: N/A

CasePresentingHPOs:

CaseHPOFreeText:

CaseNotHPOs:

CaseNotHPOFreeText:

CaseEnzymeAssay: N/A

CaseUrineGAGs: N/A

CaseERT: N/A

CaseBMT: N/A

Variant1: L346R

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: N/A

Variant2ClinVarID: N/A

Variant2CAID: N/A

AdditionalVariants: N/A

ParentalGenotype: N/A

PreviouslyPublished: N/A

Case#: Chinese. 12 years old (age at report)

DiseaseAssertion: MPS1-H/S

FamilyInfo: N/A

CasePresentingHPOs: Short stature, macrocephaly, coarse face, corneal clouding, skeletal deformities, hepatosplenomegaly, hearing impairment, tracheal stenosis, hypertrophic cardiomyopathy, obstructive sleep apnea, umbilical hernia, anemia, ichthyosis (HP:0004322, HP:0000256, HP:0000280, HP:0007957, HP:0000924, HP:0001433, HP:0000365, HP:0002777, HP:0001639, HP:0002870, HP:0001537, HP:0001903, HP:0008064

CaseHPOFreeText: Normal intelligence, adenoid hyperplasia, tonsil hypertrophy

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CaseEnzymeAssay: A very low level of IDUA activity (1.8%) was detected in the patient's fibroblast cells (data not shown).

The effects of both mutations on IDUA activity and/or splicing were examined by transfection into COS-7 cells of the IDUA cDNA construct. When compared to that of wild-type cDNA, 87.5, 1.6, and 0.4% IDUA activity was observed with the IDUA cDNA containing the wild-type acceptor splice site (388-3c), the mutated acceptor splice site (388-3g), or L346R.

CaseUrineGAGs: N/A

CaseERT: N/A

CaseBMT: N/A

Variant1: c.1037T>G (p.Leu346Arg)

Variant1ClinVarID: 11927

Variant1CAID: CA256128

Variant2: c.300-3C>G; c.388-3C>G in the paper (old nomenclature)

Variant2ClinVarID: 551563

Variant2CAID: CA549265042

AdditionalVariants: p.Q33H (polymorphism)

ParentalGenotype: Maternal: c.1037T>G (p.L346R); Paternal: c.300-3C>G (c.388-3C>G in the paper, old nomenclature)

PreviouslyPublished N/A