PatientID: 5299

KindredID: 235

Case: Sex Unknown, Age Unknown, French

DiseaseAssertion: VHL

FamilyInfo: N/A

CohortInfo: Families were recruited from the French VHL Registry. Enrolment in the study required identification of the germline VHL mutation (currently 85% of the families included in the French VHL Registry) and available data regarding renal phenotype. A total of 126 families fulfilled these criteria.

CasePresentingHPOs: HP:0009726 (Renal neoplasm)

CaseHPOFreeText: Mild renal disease (simple renal cyst, multicystic kidney[s], small lesion [less than 10 mm in size] of unknown significance, or small solid tumor without indication for surgical removal [less than 30 mm in size]). Individual RCC phenotype is noted as negative.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: Paper states that this family is previously reported in PMID 12202531 and/or 9829912, where 1 and 1 individuals respectively with an equivalent mutation (i.e. 473insT) are reported. It is unclear if one or both of these previously reported groups are the same as the current family.

SupplementalData: Phenotype and genotype information can be found in Supplementary Table S1.

Variant: p.K159Efs*15 (c.473dup)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA432423097, https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.473dup

gnomAD: N/A

VariantEvidence: N/A

MutationType: duplication; plus_1_frameshift_variant

CivicName: K159Efs*15 (c.473dup)

MultipleGeneVariants: N/A

Germline mutational data on VHL was gathered from various countries to assess variation in germline mutations that produce disease within different populations. Families were grouped according to three possible outcomes of disease: renal cell carcinoma without pheochromocytoma, renal cell carcinoma with pheochromocytoma, or pheochromocytoma alone. SSCP and denaturing gradient gel electrophoresis identified mutations in 300/469 (63%) of families affected with VHL. This germline familial VHL mutation (K159fs (c.473dupT)) was taken from the Bristol Myers Squibb database, with an unknown number of members belonging to Family ID 6BMS. It was reported in the paper as c.685insT due to a difference in transcript reference. Table 5 lists all ID and mutations associated with individuals without detailed clinical information. Other phenotypes are possible, however not detailed here.

Molecular and clinical analysis of 126 French VHL families tested for renal involvement revealed 92 different mutations. 90 of these families had renal involvement. The p.K159Efs*15 (c.473dup) germline variant of the VHL gene was detected in an individual (ID 5299, Family 235). They presented with mild renal disease (simple renal cyst, multicystic kidney[s], small lesion [less than 10 mm in size] of unknown significance, or small solid tumor without indication for surgical removal [less than 30 mm in size]). Individual RCC phenotype is noted as negative. The paper states that this individual is previously reported in PMID 12202531 and/or 9829912.