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    1. We report on the coinheritance of mild haemophilia A and type 1 von Willebrand disease (VWD) in a genetically characterized Italian family. The proband is a 56-year-old man carrying both the c.2167G>A mutation in the factor VIII (FVIII) gene (responsible for p.A723T substitution) and the c.4751A>G mutation (p.Y1584C) in the von Willebrand factor (VWF) gene.

      Case: Proband (II-1), male, 56yo, Italian

      DiseaseAssertion: VWD1 and Hemophilia A

      FamilyInfo: Pedigree in Fig. 1 - Father had VWD1 and Mother had Hemophilia A - parents have normal or higher VWF levels, and normal FVIII/VWF:Ag ratios, as well as a normal bleeding score; 2 daughters carry F8 variant

      ParentalGenotype(s): Paternal = NM_000552.4(VWF):c.4751A>G (p.Tyr1584Cys); Maternal = NM_000132.3(F8):c.2167G>A (p.Ala723Thr)

      CasePresentingHPOs: HP:0012147, HP:0030129, HP:0030130, HP:0001892, HP:0000421, HP:0000978, HP:0004846, HP:0000225, HP:0005261, HP:0040242

      (Reduced quantity of VWF, Impaired ristocetin cofactor assay activity, Impaired von Willebrand factor collagen binding activity, abnormal bleeding, epistaxis, Bruising susceptibility, Prolonged bleeding after surgery, bleeding gums, joint hemorrhage, muscle hemorrhage)

      CaseHPOFreeText: blood group = 0, aPTT = 0.56sec, FVIII = 9.8 IU/dL, VWF:Ag = 43.2 IU/dL, VWF:CB = 35.6 IU/dL, VWF:Rco = 42.1 IU/dL, VWF:FVIIIB = 41.3 IU/dL, Platelet VWF:Ag = 58.2 IU/dL, bleeding score = 27

      CaseNOTHPOs: HP:0011871

      (Impaired RIPA)

      CaseNOTHPOFreeText:

      CasePreviousTesting:

      GenotypingMethod: PCR and direct sequencing of VWF and FVIII

      PreviouslyPublished: NA

      Gene: VWF

      Variant: c.4751A>G (p.Tyr1584Cys)

      HGVS: NM_000552.4(VWF):c.4751A>G (p.Tyr1584Cys)

      ClinVarID: 310; https://www.ncbi.nlm.nih.gov/clinvar/variation/310/

      CAID: NA

      gnomAD: MAF = 0.004024 (519/128972 alleles, 4 homozygotes) in European (non-Finnish) population

      MultipleGeneVariants:

      Gene: F8

      Variant: c.2167G>A (p.Ala723Thr)

      HGVS: NM_000132.3(F8):c.2167G>A (p.Ala723Thr)

      ClinVarID: 10246; https://www.ncbi.nlm.nih.gov/clinvar/variation/10246/

      CAid: NA

      gnomAD: MAF = 0.00005257 (1/19022 alleles, 1 hemizygote) in South Asian population

    1. Case#: 01028, Age 8, Male, Blood type O+( Table S3)

      Disease Assertion: VWD 1

      FamilyInfo: Not listed

      Parental Genotype: Not listed

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Bleeding score 7, VWF:Ag: 21, VWF:RCo: 33, FVIII:C: 34, VWF:CB: 30

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      Protein Expression: N/A

      CasePreviousTesting: 48,48 Access-Array amplification. NGS Molecular analysis was performed. Sanger sequencing was used to validate selected mutations.

      Gene: VWF

      Variant: NM_000552.4:c.4751A>G (p.Tyr1584Cys) and NM_000552.3:c.5312-19A>C

      ClinVar: 310 and 806794

      ClinVar1

      ClinVar2

      CAID: CA114162 and CA6402297 CAID1 CAID2

      gnomAD: MAF of 0.004024 (519/128972 alleles) in the European (non-Finnish) population (CA114162). MAF of 0.002507 (26/10370 alleles) in the Ashkenazi Jewish population.

      gnomAD1

      gnomAD2