About FANCL
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.
This start-loss variant (c.2T>C, p.Met1?) abolishes the initiation codon of FANCL. Loss of function is an established disease mechanism for FANCL (Fanconi anemia, autosomal recessive). Per ClinGen SVI PVS1 recommendations (PMC6185798), initiation codon variants qualify for PVS1 at moderate strength when no alternative in-frame start codon is present in the same exon. No downstream ATG was identified in FANCL exon 1.
This variant is present at very low frequency in population databases: gnomAD v2.1 AF=0.00478% (12/250,878 alleles, 0 homozygotes) and gnomAD v4.1 AF=0.00347% (56/1,614,008 alleles, 0 homozygotes). Both are well below the 0.1% threshold for PM2. The variant is absent from gnomAD-Canada.
No benign criterion marked as applied in the recorded assessment.
gene-specific framework lacked a usable explicit final combination framework, so generic ACMG/AMP 2015 final-combination rules were applied as fallback; applied criteria: PVS1 moderate, PM2 supporting; combination = 1 moderate + 1 supporting, which maps to VUS.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 56 / 1,614,008 alleles. Recorded AF 3.46962e-05. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 4.7832e-05; MAF= 0.00478%, 12/250878 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.000105764; MAF= 0.01058%, 12/113460 alleles, homozygotes = 0); grpmax FAF= 6.027e-05.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0002171788467803236, 4/18418 alleles, homozygotes = 0).
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
3 Pathogenic · 3 Likely pathogenic · 1 Uncertain significance. ClinVar API review status: criteria provided, multiple submitters, no conflicts.
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Likely Loss-of-function; curated oncogenicity label: Likely Oncogenic.
This variant has previously been reported in somatic cancers (COSMIC; COSV52073298, n = 2 times).
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under Not recorded, with the data and sources behind each one.
26 criteria with recorded statuses: 2 met · 19 not met · 0 not assessed · 5 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
PVS1 at moderate strength: c.2T>C is a start-loss variant abolishing the FANCL initiation codon with no alternative in-frame ATG in exon 1. Loss of function is an established disease mechanism for Fanconi anemia.
PM2 at supporting strength: This variant is present at very low frequency in gnomAD (v2.1 AF=0.00478%; v4.1 AF=0.00347%), with no homozygotes observed, consistent with a rare pathogenic variant.
Overall classification: Uncertain Significance (VUS). The combination of PVS1_Moderate and PM2_Supporting does not meet the threshold for Likely Pathogenic per ACMG/AMP 2015 combination rules (requires ≥2 Moderate or ≥1 Moderate + ≥4 Supporting). ClinVar submissions report Pathogenic/Likely Pathogenic but are limited to single-submitter review and cite evidence not independently verifiable in available full-text literature.
No criteria match.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
Every interpreted variant in FANCL, mapped onto the exon structure of NM_018062.3. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| European (non-Finnish)53 / 1,180,022 | 4.5e-05 |
| Remaining individuals2 / 62,484 | 3.2e-05 |
| European (Finnish)1 / 63,958 | 1.6e-05 |
| European (non-Finnish)12 / 113,460 | 0.00011 |
This variant is present in gnomAD v4.1 (AF= 3.46962e-05; MAF= 0.00347%, 56/1614008 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 4.49144e-05; MAF= 0.00449%, 53/1180022 alleles, homozygotes = 0); grpmax FAF= 3.503e-05.
This variant is present in gnomAD v2.1 (AF= 4.7832e-05; MAF= 0.00478%, 12/250878 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.000105764; MAF= 0.01058%, 12/113460 alleles, homozygotes = 0); grpmax FAF= 6.027e-05.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0002171788467803236, 4/18418 alleles, homozygotes = 0).
No further detail was recorded.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.212. BayesDel score = 0.66.
8 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= 3.46962e-05; MAF= 0.00347%, 56/1614008 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 4.49144e-05; MAF= 0.00449%, 53/1180022 alleles, homozygotes = 0); grpmax FAF= 3.503e-05.
This variant is present in gnomAD v2.1 (AF= 4.7832e-05; MAF= 0.00478%, 12/250878 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.000105764; MAF= 0.01058%, 12/113460 alleles, homozygotes = 0); grpmax FAF= 6.027e-05.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0002171788467803236, 4/18418 alleles, homozygotes = 0).
This variant has been reported in ClinVar as Pathogenic (3 clinical laboratories) and as Likely pathogenic (3 clinical laboratories) and as Uncertain significance (1 clinical laboratory). (ClinVarID = 566870)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.212. BayesDel score = 0.66.
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Likely Loss-of-function; curated oncogenicity label: Likely Oncogenic.
This variant does not lie in a statistically significant hotspot. This variant has previously been reported in somatic cancers (COSMIC; COSV52073298, n = 2 times).
This variant does not lie in a statistically significant hotspot.