About FANCA
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 uncertain. Select a step to read what it means.
Uncertain.The recorded classification is uncertain significance.
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 Not recorded. 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.
NM_000135.3:c.2003G>T is extremely rare in population databases. In gnomAD v2.1 exomes, the variant is observed at an allele frequency of 6.42×10⁻⁶ (1/155,698 alleles; MAF 0.00064%), far below the 0.1% threshold for PM2. In gnomAD v4.1, the AF is 3.22×10⁻⁶ (5/1,550,610 alleles; MAF 0.00032%). No homozygotes are reported in either dataset. The variant is absent from gnomAD-Canada. This ultra-rare population frequency supports a moderate evidence weight for pathogenicity under the ACMG/AMP framework.
Multiple lines of computational evidence suggest NM_000135.3:c.2003G>T (p.Ser668Ile) has no deleterious impact. REVEL predicts a benign score of 0.276 (well below the 0.5 threshold commonly used for pathogenic prediction). BayesDel predicts a benign score of -0.261 (negative scores indicate benign). SpliceAI predicts no splicing alteration (max delta score = 0.00). The concordance of multiple in silico predictors supports a supporting benign evidence weight.
gene-specific framework lacked a usable explicit final combination framework, so generic ACMG/AMP 2015 final-combination rules were applied as fallback; applied criteria: PM2 moderate, BP4 supporting benign; combination = 1 moderate + 1 supporting benign, which maps to VUS.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 5 / 1,550,610 alleles. Recorded AF 3.22454e-06. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 6.42269e-06; MAF= 0.00064%, 1/155698 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 8.8433e-05; MAF= 0.00884%, 1/11308 alleles, homozygotes = 0).
Not available in gnomAD-Canada v1.0.
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
4 Uncertain significance. ClinVar API review status: criteria provided, multiple submitters, no conflicts.
OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. FANCA, a DNA repair protein, is infrequently altered in cancer.
This variant has not previously been reported in somatic cancers (COSMIC).
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under Not recorded, with the data and sources behind each one.
29 criteria with recorded statuses: 2 met · 22 not met · 0 not assessed · 5 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_000135.3:c.2003G>T (p.Ser668Ile) is a missense variant in FANCA, a gene associated with autosomal recessive Fanconi anemia. The variant is extremely rare in population databases with an allele frequency of 6.42×10⁻⁶ in gnomAD v2.1 and 3.22×10⁻⁶ in gnomAD v4.1, meeting PM2 (moderate).
Multiple in silico tools predict a benign effect: REVEL score 0.276, BayesDel score -0.261, and SpliceAI max delta 0.00, meeting BP4 (supporting benign).
The variant is classified as Uncertain significance in ClinVar (VCID 2161267) by four clinical laboratories with criteria provided but no expert panel review. No pathogenic assertion from a reputable source exists.
No functional studies, case-control data, segregation data, de novo observations, or variant-specific literature citations were identified for this variant. OncoKB reports Unknown Oncogenic Effect with no curated PMIDs.
The only applicable evidence criteria are PM2 (moderate, supporting pathogenicity) and BP4 (supporting benign). These offset each other, leaving the variant with no net evidence weight toward either pathogenic or benign classification. The variant remains a Variant of Uncertain Significance.
No criteria match.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
Every interpreted variant in FANCA, mapped onto the exon structure of NM_000135.3. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| East Asian2 / 40,926 | 4.9e-05 |
| Remaining individuals1 / 60,076 | 1.7e-05 |
| South Asian1 / 84,044 | 1.2e-05 |
| European (non-Finnish)1 / 1,146,544 | 8.7e-07 |
| East Asian1 / 11,308 | 8.8e-05 |
This variant is present in gnomAD v4.1 (AF= 3.22454e-06; MAF= 0.00032%, 5/1550610 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 4.88687e-05; MAF= 0.00489%, 2/40926 alleles, homozygotes = 0); grpmax FAF= 8.1e-06.
This variant is present in gnomAD v2.1 (AF= 6.42269e-06; MAF= 0.00064%, 1/155698 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 8.8433e-05; MAF= 0.00884%, 1/11308 alleles, homozygotes = 0).
Not available in gnomAD-Canada v1.0.
No further detail was recorded.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.276. BayesDel score = -0.261458.
7 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= 3.22454e-06; MAF= 0.00032%, 5/1550610 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 4.88687e-05; MAF= 0.00489%, 2/40926 alleles, homozygotes = 0); grpmax FAF= 8.1e-06.
This variant is present in gnomAD v2.1 (AF= 6.42269e-06; MAF= 0.00064%, 1/155698 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 8.8433e-05; MAF= 0.00884%, 1/11308 alleles, homozygotes = 0).
Not available in gnomAD-Canada v1.0.
This variant has been reported in ClinVar as Uncertain significance (4 clinical laboratories). (ClinVarID = 2161267)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.276. BayesDel score = -0.261458.
OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. FANCA, a DNA repair protein, is infrequently altered in cancer.
This variant does not lie in a statistically significant hotspot. This variant has not previously been reported in somatic cancers (COSMIC).
This variant does not lie in a statistically significant hotspot.