About NF1
No gene-level summary was recorded for this case.
No variant summary was recorded for this case.
Five-step scale from benign to pathogenic. This variant is benign. Select a step to read what it means.
Benign.A benign classification under the recorded framework.
Gene-level background from the recorded interpretation.
Words with a dotted underline have a short definition. Hover or tap them.No gene-level summary was recorded for this case.
The recorded framework is ClinGen NF1 VCEP v1.0.0. The criteria and strengths shown below come from the saved assessment; this page does not recalculate the classification.
The applied criteria and their strengths are shown as assessed under the stated framework.
No pathogenic criterion marked as applied in the recorded assessment.
The variant has an allele frequency of 1.425% (13/912 alleles) in the Amish subpopulation in gnomAD v4.1, exceeding the 1% BA1 threshold. Additionally, 13 homozygotes are observed in gnomAD v4.1, which is incompatible with a highly penetrant autosomal dominant disorder such as NF1.
The variant is present at an allele frequency of 1.425% in the Amish subpopulation of gnomAD v4.1, far exceeding the 0.3% BS1 threshold for a dominant disorder with NF1 prevalence (~1/3,000). The overall gnomAD v4.1 frequency of 0.29% also approaches this threshold.
Multiple lines of computational evidence indicate no impact on splicing or gene function. SpliceAI predicts no splicing alteration (max delta score = 0.00). The variant is located deep within intron 40 at the +8 position, away from the canonical splice donor site.
ClinVar reports this variant as Benign based on 22 submissions from multiple clinical laboratories (11 Benign, 9 Likely benign, 1 benign), though without expert panel review. Multiple independent clinical laboratories concur on a benign classification.
Neurofibromatosis and Schwannomatosis Specification v1.0.0 lacked a usable explicit final combination framework, so generic ACMG/AMP 2015 final-combination rules were applied as fallback; applied criteria: BA1 stand-alone benign, BS1 strong benign, BP4 supporting benign, BP6 supporting benign; combination = 1 stand-alone benign + 1 strong benign + 2 supporting benign, which maps to Benign.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 4,673 / 1,613,910 alleles. Recorded AF 0.00289545. Recorded homozygote count 13.
This variant is present in gnomAD v2.1 (AF= 0.00141824; MAF= 0.14182%, 401/282744 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.002696; MAF= 0.26960%, 348/129080 alleles, homozygotes = 0); grpmax FAF= 0.00247691.
This variant is present in gnomAD-Canada v1.0 (AF= 0.002500815483309775, 46/18394 alleles, homozygotes = 0).
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
11 Benign · 9 Likely benign · 1 benign.
No standalone functional evidence summary is recorded in evidence_summary.functional.
This variant has not previously been reported in somatic cancers (COSMIC).
ACMG/AMP criteria under ClinGen NF1 VCEP v1.0.0, with the data and sources behind each one.
27 criteria with recorded statuses: 4 met · 12 not met · 1 not assessed · 10 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_000267.3:c.6084+8C>G is classified as Benign.
BA1 is met at stand-alone benign strength: the variant has an allele frequency of 1.43% in the Amish subpopulation of gnomAD v4.1, exceeding the >1% BA1 threshold for a highly penetrant autosomal dominant disorder (NF1 prevalence ~1/3,000). Thirteen homozygous individuals are observed in gnomAD v4.1, which is incompatible with a pathogenic NF1 variant.
BS1 is met at strong benign strength: the variant allele frequency of 1.43% (Amish subpopulation) far exceeds the 0.3% threshold for a dominant disorder.
BP4 is met at supporting benign strength: SpliceAI predicts no splice impact (max delta = 0.00), and the variant is located at the +8 intronic position, distant from the canonical splice donor site.
BP6 is met at supporting benign strength: ClinVar reports this variant as Benign based on 22 independent clinical laboratory submissions (11 Benign, 9 Likely benign, 1 benign).
BA1 is stand-alone benign. Per ACMG/AMP 2015 combination rules (Richards et al., PMID:25741868), a single BA1 criterion is sufficient for a Benign classification. The final classification is Benign.
No criteria match.
No further detail was recorded.
Every interpreted variant in NF1, mapped onto the exon structure of NM_000267.3. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| Amish13 / 912 | 0.014 |
| European (non-Finnish)4356 / 1,179,978 | 0.003712 hom |
| Remaining individuals198 / 62,510 | 0.00321 hom |
| African/African American49 / 74,956 | 0.00065 |
| Admixed American37 / 60,010 | 0.00062 |
| European (Finnish)15 / 63,974 | 0.00023 |
| Ashkenazi Jewish3 / 29,604 | 0.0001 |
| South Asian2 / 91,060 | 2.2e-05 |
| European (non-Finnish)348 / 129,080 | 0.0027 |
| Remaining individuals12 / 7,218 | 0.0017 |
| African/African American16 / 24,966 | 0.00064 |
| Admixed American18 / 35,436 | 0.00051 |
| European (Finnish)5 / 25,114 | 0.0002 |
| Ashkenazi Jewish1 / 10,368 | 9.6e-05 |
| South Asian1 / 30,610 | 3.3e-05 |
This variant is present in gnomAD v4.1 (AF= 0.00289545; MAF= 0.28955%, 4673/1613910 alleles, homozygotes = 13) and has highest observed frequency in the Amish population (AF= 0.0142544; MAF= 1.42544%, 13/912 alleles, homozygotes = 0); grpmax FAF= 0.00359997.
This variant is present in gnomAD v2.1 (AF= 0.00141824; MAF= 0.14182%, 401/282744 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.002696; MAF= 0.26960%, 348/129080 alleles, homozygotes = 0); grpmax FAF= 0.00247691.
This variant is present in gnomAD-Canada v1.0 (AF= 0.002500815483309775, 46/18394 alleles, homozygotes = 0).
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
10 paper records listed. No publication is explicitly linked to an applied criterion in the recorded metadata. None of the listed paper records explicitly indicates that the variant is named.
Screenshots represent source records captured during evidence collection. Select one to view the recorded source content.
The evidence statements recorded by the interpretation pipeline. They have not been reinterpreted by the page.
This variant is present in gnomAD v4.1 (AF= 0.00289545; MAF= 0.28955%, 4673/1613910 alleles, homozygotes = 13) and has highest observed frequency in the Amish population (AF= 0.0142544; MAF= 1.42544%, 13/912 alleles, homozygotes = 0); grpmax FAF= 0.00359997.
This variant is present in gnomAD v2.1 (AF= 0.00141824; MAF= 0.14182%, 401/282744 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.002696; MAF= 0.26960%, 348/129080 alleles, homozygotes = 0); grpmax FAF= 0.00247691.
This variant is present in gnomAD-Canada v1.0 (AF= 0.002500815483309775, 46/18394 alleles, homozygotes = 0).
Error retrieving ClinVar entry.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
This variant has not previously been reported in somatic cancers (COSMIC).