In a study of 114 unrelated VHL families, 85 germline mutations were found. VHL mutations were detected in affected family members, but not in unaffected family members or 96 normal individuals. This mutation was also found in a VHL type 1 family of 27 individuals (family ID 3003), using PCR and SSCP sequencing. The mutation of c.502_503insTTGTTCGT was referred to in the paper by c.715insTTGTTCGT due to a difference in transcript sequence. Five of 11 individuals were identified with renal cell carcinoma, 11 with retinal hemangioblastomas, and 9 with CNS hemangioblastomas. Previously published in PMID 8956040 (type 1 3003NCI); and PMID 9829911. ACMG codes as follows: PVS1 a frameshift variant in a gene where loss of function is a known mechanism of disease.

GroupID: 3003

DiseaseAssertion: assumed VHL

GroupSize: 27

GroupNumberMales: N/A

GroupNumberFemales: N/A

GroupEthnicity: N/A

GroupAgeRange: N/A

GroupInfo: Familial VHL stated; 27 family members recorded with this mutation.

GroupPresentingHPOs: HP:0009711; HP:0010797; HP:0005584 (retinal capillary hemangioma, hemangioblastoma, renal cell carcinoma)

GroupHPOFreeText: 11/27 members had retinal angioma (hemangioma), 9 had CNS hemangioblastoma, and 5 had RCC

GroupNotHPOs: HP:0002666 (pheochromocytoma)

GroupNotHPOFreeText: N/A

GroupPreviousTesting: N/A

PreviouslyPublished: 8956040 (type 1 3003NCI); 9829911

SupplementalData: N/A

Variant: p.S168Ifs*5 (c.502_503insTTGTTCGT)

CaseProblemVariantFreeText: N/A

LegacyVariant: p.239fs (c.715insTTGTTCGT)

ClinVarID: N/A

CAID: CA2573051075 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/by_caid?caid=CA2573051075

gnomAD: N/A

VariantEvidence: N/A

MutationType: plus_2_frameshift_variant

CivicName: S168fs (c.502_503insTTGTTCGT)

MultipleGeneVariants: N/A