identify the causative mutation
Case#: Belvini_Proband_4 (male, Italian)
DiseaseAssertion: Severe Hemophilia B
FamilyInfo: N/A
ParentalTesting: N/A
CasePresentingHPOs: HP:0011858
CaseHPOsFreeText: reduced factor IX activity
CaseNotHPOs: N/A
CaseNotHPOFreeText: N/A
CasePreviousTesting: N/A
Gene: F9
Variant: NM_000133.4:c.59T>C (p.Leu20Ser)
ClinVar: Absent
CAID: CA414434363
gnomAD: Absent/Not Reported