In a study of 426 unrelated VHL patients, 111 were discovered to have alterations in the VHL gene. 18 novel variants were identified in VHL patients, but none were present in 200 unaffected control individuals. DNA samples from peripheral blood leukocytes underwent polymerase chain reaction (PCR) amplification, denaturing high-performance liquid chromatography (DHPLC), and direct sequence analysis of the entire coding sequence and intron-exon boundaries. The V155G (c.464T>G) germline mutation of the VHL gene was found in a 43 yr old VHL patient with retinal hemangioblastomas and pheochromocytoma (index case 2). Parents, siblings and nephew were negative for the mutation confirming that this variant was de novo in the proband. No phenotype details are noted for these family members.

PatientID: 2

KindredID: 2

Case: Sex Unknown, 43Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: Parents, siblings and nephew were negative for the mutation confirming that this variant was de novo in the proband. No phenotype details are noted for these family members.

CasePresentingHPOs: HP:0002666; HP:0009711 (Pheochromocytoma, Retinal capillary hemangioma)

CaseHPOFreeText: N/A

CaseNotHPOs: HP:0000107; HP:0006770; HP:0010797; HP:0001732 (Renal cyst, Clear cell renal cell carcinoma, Hemangioblastoma, Abnormality of the pancreas)

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: Table S1, S2 and S3

Variant: p.V155G (c.464T>G)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA16621938, https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.464T%3EG

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: V155G (c.464T>G)

MultipleGeneVariants: N/A

PatientID: 17

KindredID: S4

Case: F, 20Y0M, Indian

DiseaseAssertion: VHL

FamilyInfo: N/A

CasePresentingHPOs: HP:0009711; HP:0002666 (Retinal capillary hemangioma, Pheochromocytoma)

CaseHPOFreeText: Retinal angioma and pheochromocytoma.

CaseNotHPOs: HP:0030393; HP:0010797; HP:0001737; HP:0005584 (Endolymphatic sac tumor, Hemangioblastoma, Pancreatic cysts, Renal cell carcinoma)

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.V155G (c.464T>G)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA16621938, https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.464T%3EG

gnomAD: N/A

VariantEvidence: N/A

MutationType: splice_site_variant; missense_variant;transversion

CivicName: V155G (c.464T>G) and c.463+43A>G

MultipleGeneVariants: Germline, VHL, c.463+43A>G