LYFE Sciences · Project HERA
Variant Interpretation · Classification Report
Variant classification summary
NM_000551.4:c.500G>A
VHL
· NP_000542.1:p.(Arg167Gln)
· NM_000551.4
GRCh37: chr3:10191507 G>A
·
GRCh38: chr3:10149823 G>A
Gene:
VHL
Transcript:
NM_000551.4
Final call
Pathogenic
PS1 strong
PS3 supporting
PS4 moderate
PM1 moderate
PM2 supporting
PP3 supporting
Variant details
Gene
VHL
Transcript
NM_000551.4
Protein
NP_000542.1:p.(Arg167Gln)
gnomAD AF
3.9771868561928774e-06 (v2.1)
ClinVar
Pathogenic
OncoKB
Oncogenic
Classification rationale
Interpretation summary
Generated evidence synthesis
1
Pathogenic: PS1 (strong) reflects ClinGen VHL VCEP Pathogenic interpretation of exact p.Arg167Gln.
2
Pathogenic: PS4 (moderate) reflects approximately 3.75 VCEP proband points from 15 reported carriers.
3
Pathogenic: PM1 (moderate) reflects codon 167's documented VHL germline-hotspot status.
4
Pathogenic: PS3 (supporting) reflects impaired Elongin C interaction, HIF2a regulation, and fibronectin deposition for R167Q.
5
Pathogenic: PM2 (supporting) reflects absence from gnomAD v4.1.
6
Pathogenic: PP3 (supporting) reflects a REVEL score of 0.874, above the VCEP threshold.
Final determination:
Under Rule7 of the ClinGen VHL Expert Panel Version 1.1 framework, one strong criterion, two moderate criteria, and at least two supporting criteria yield a Pathogenic classification.
Criteria assessment
ACMG/AMP criteria review
Criteria shown when status is available
All criteria require review: For research and educational purposes only.
| Criterion | Status | Rationale | Evidence used |
|---|---|---|---|
| PVS1 | N/A | Not applicable: c.500G>A is a missense change, p.Arg167Gln, rather than a truncating or canonical exon-skipping variant covered by the VCEP PVS1 rule. |
cspec
pvs1_variant_assessment
|
| PS1 | Met | Met, strong: ClinGen VHL VCEP has interpreted the exact p.Arg167Gln variant as Pathogenic. |
cspec
clinvar
|
| PS2 | Not assessed | Not assessed: no documented de novo proband, parental testing, maternity/paternity, or VCEP-defined Danish-criteria phenotype is available for c.500G>A. |
cspec
PMID:10567493
PMID:10761708
PMID:12000816
PMID:12624160
PMID:15300849
PMID:17024664
|
| PS3 | Met | Met, supporting: VHL R167Q reduced Elongin C interaction, failed HIF2a regulation, and caused defective fibronectin deposition in variant-specific functional studies. |
cspec
vcep_vhl_functional_assay_svi_documentation
PMID:15574766
|
| PS4 | Met | Met at Moderate: 15 reported carriers contribute approximately 3.75 VCEP points, within the 2–4-point Moderate range, pending cohort-overlap review. |
cspec
PMID:10567493
PMID:10761708
PMID:12000816
PMID:12624160
PMID:15300849
PMID:17024664
|
| PM1 | Met | Met, moderate: PMID:12624160 identifies codon 167 as a VHL hotspot and reports the queried Arg167Gln variant. |
cspec
PMID:12624160
|
| PM2 | Met | Met at Supporting: the variant is absent from gnomAD v4.1, satisfying the VCEP PM2 Supporting absence criterion. |
cspec
gnomad_v4
|
| PM3 | N/A | Not applicable: The VHL VCEP specifies autosomal dominant inheritance, so PM3 is not used for this variant. |
cspec
|
| PM4 | N/A | Not applicable: p.Arg167Gln is a missense substitution, not an in-frame indel or stop-loss extension specified by the VCEP PM4 rule. |
cspec
pvs1_variant_assessment
|
| PM5 | Not met | Not met: zero same-residue pathogenic comparator variants were identified for the Arg167 position, so Grantham comparison cannot be performed. |
cspec
pm5_candidates
|
| PM6 | Not assessed | Not assessed: reports identify R167Q in patients or families but provide no VCEP-usable assumed de novo status or maternity/paternity evidence. |
cspec
PMID:10567493
PMID:10761708
PMID:12000816
PMID:12624160
PMID:15300849
|
| PP1 | Not assessed | Not assessed: multiple reports mention R167Q, but no variant-specific affected segregation or countable informative meioses are provided. |
cspec
PMID:10761708
PMID:12624160
PMID:15300849
|
| PP2 | N/A | Not applicable: the VHL VCEP explicitly marks PP2 as not applicable. |
cspec
|
| PP3 | Met | Met: REVEL score 0.874 meets the VHL VCEP PP3 missense threshold of >=0.664. |
cspec
revel
|
| PP4 | N/A | Not applicable: the VHL VCEP explicitly designates PP4 as not applicable. |
cspec
|
| PP5 | Met | Not applicable: the VHL VCEP prohibits use of PP5 under its specification. |
cspec
clinvar
|
| BA1 | Not met | Not met: the variant is absent from gnomAD v4.1, so its GroupMax Filtering Allele Frequency does not reach the BA1 threshold of 0.000156. |
cspec
gnomad_v4
|
| BS1 | Not met | Not met: the variant is absent from gnomAD v4.1, so its GroupMax Filtering Allele Frequency does not reach the BS1 threshold of 0.0000156. |
cspec
gnomad_v4
|
| BS2 | Not assessed | Not assessed: no qualifying set of at least three variant carriers aged 65 or older with the VCEP-required phenotype and screening information is available. |
cspec
|
| BS3 | Not met | Not met: VHL R167Q showed reduced Elongin C interaction, failed HIF2a regulation, and defective fibronectin deposition rather than WT-like function. |
cspec
vcep_vhl_functional_assay_svi_documentation
PMID:15574766
|
| BS4 | Not assessed | Not assessed: no tested affected relative lacking R167Q is documented in one or more families. |
cspec
PMID:10761708
PMID:12624160
PMID:15300849
|
| BP1 | N/A | Not applicable: the VHL VCEP explicitly marks BP1 as not applicable. |
cspec
|
| BP2 | Not assessed | Not assessed: No phase-confirmed trans/cis observation, homozygous unaffected individual, or three pathogenic VHL variants in cis/unknown phase is documented. |
cspec
PMID:10567493
PMID:10761708
PMID:12000816
PMID:12624160
PMID:15300849
PMID:17024664
|
| BP3 | N/A | Not applicable: p.Arg167Gln is at amino acid 167, outside the VCEP-defined 8x GXEEX repeat motif at AA14-AA48. |
cspec
pvs1_variant_assessment
|
| BP4 | Not assessed | Not assessed: SpliceAI max delta 0.026 meets <=0.1, but the required VarSeak Class 1 or 2 result is unavailable. |
cspec
spliceai
|
| BP5 | Not assessed | Not assessed: no evidence documents at least two qualifying co-occurrences with another highly penetrant pathogenic gene variant. |
cspec
|
| BP6 | N/A | Not applicable: the VHL VCEP prohibits use of BP6 under its specification. |
cspec
|
| BP7 | N/A | Not applicable: c.500G>A is a missense variant, whereas VHL BP7 is limited to silent or intronic variants. |
cspec
|
Disclaimer:
The content and results provided by LYFE Sciences are for research and educational purposes only and must not be used as a substitute for professional medical judgment, diagnosis, or treatment. Always consult a qualified healthcare professional before making any clinical decisions.