About FGFR1
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.
The variant is present in gnomAD at low frequency — v2.1 AF 0.041% (115/280,958 alleles) and v4.1 AF 0.056% (905/1,614,218 alleles), both below the 0.1% threshold for PM2. However, the substantial carrier count (905 in v4.1) substantially weakens the evidence weight and this criterion should be considered borderline in the context of a rare disease gene.
Ten of eleven clinical laboratory submissions in ClinVar classify NM_023110.3:c.1368G>T as Likely benign (7 labs) or Benign (3 labs), with only one VUS. While no expert panel review is available, the strong inter-laboratory consensus towards benign supports BP6 at the supporting level.
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 supporting, BP6 supporting; combination = 1 supporting + 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: 905 / 1,614,218 alleles. Recorded AF 0.000560643. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 0.000409314; MAF= 0.04093%, 115/280958 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.000784661; MAF= 0.07847%, 101/128718 alleles, homozygotes = 0); grpmax FAF= 0.00068549.
This variant is present in gnomAD-Canada v1.0 (AF= 0.00043426338074041906, 8/18422 alleles, homozygotes = 0).
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
7 Likely benign · 3 Benign · 1 Uncertain significance. ClinVar API review status: criteria provided, conflicting classifications.
OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. FGFR1, a receptor tyrosine kinase, is altered by mutation, chromosomal rearrangement or amplification in various cancer types including lung and breas
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_023110.3:c.1368G>T (p.Met456Ile) is a missense variant in exon 10 of FGFR1, encoding the tyrosine kinase domain.
This variant is present in gnomAD v2.1 at an allele frequency of 0.041% (115/280,958 alleles, 0 homozygotes) and in v4.1 at 0.056% (905/1,614,218 alleles, 0 homozygotes), with a grpmax filtering allele frequency of 0.069%. While below the formal BS1 threshold of 0.3%, the substantial carrier count in population databases (905 in v4.1) indicates this variant is not a rare private mutation.
In ClinVar, 10 of 11 clinical laboratory submissions classify this variant as Likely benign (7) or Benign (3), with one VUS. No submitter classifies the variant as pathogenic or likely pathogenic. The review status is 'criteria provided, single submitter' without expert panel consensus.
In silico predictions are discordant: REVEL (0.802) predicts damaging, while BayesDel (0.069) and SpliceAI (max delta 0.00) predict benign/no splicing impact. No variant-specific functional studies or case-level observations of pathogenicity were identified in the reviewed literature.
Applying generic ACMG/AMP 2015 combination rules: one supporting benign criterion (BP6) is met. PM2 is met at supporting level for pathogenicity but is substantially weakened by the high carrier count (905 in v4.1). The overall evidence profile favors a likely benign interpretation based on population frequency and multi-laboratory clinical consensus, though the formal BS1 threshold is not crossed.
No criteria match.
No further detail was recorded.
No further detail was recorded.
No further detail was recorded.
Every interpreted variant in FGFR1, mapped onto the exon structure of NM_023110.3. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| European (non-Finnish)849 / 1,180,042 | 0.00072 |
| Middle Eastern3 / 6,062 | 0.00049 |
| Admixed American20 / 60,026 | 0.00033 |
| Remaining individuals19 / 62,512 | 0.0003 |
| European (Finnish)6 / 64,018 | 9.4e-05 |
| African/African American4 / 75,066 | 5.3e-05 |
| South Asian4 / 91,090 | 4.4e-05 |
| European (non-Finnish)101 / 128,718 | 0.00078 |
| Remaining individuals4 / 7,150 | 0.00056 |
| Admixed American7 / 35,374 | 0.0002 |
| African/African American1 / 24,198 | 4.1e-05 |
| European (Finnish)1 / 25,018 | 4e-05 |
| South Asian1 / 30,602 | 3.3e-05 |
This variant is present in gnomAD v4.1 (AF= 0.000560643; MAF= 0.05606%, 905/1614218 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.000719466; MAF= 0.07195%, 849/1180042 alleles, homozygotes = 0); grpmax FAF= 0.00067933.
This variant is present in gnomAD v2.1 (AF= 0.000409314; MAF= 0.04093%, 115/280958 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.000784661; MAF= 0.07847%, 101/128718 alleles, homozygotes = 0); grpmax FAF= 0.00068549.
This variant is present in gnomAD-Canada v1.0 (AF= 0.00043426338074041906, 8/18422 alleles, homozygotes = 0).
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.802. BayesDel score = 0.0686773.
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= 0.000560643; MAF= 0.05606%, 905/1614218 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.000719466; MAF= 0.07195%, 849/1180042 alleles, homozygotes = 0); grpmax FAF= 0.00067933.
This variant is present in gnomAD v2.1 (AF= 0.000409314; MAF= 0.04093%, 115/280958 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 0.000784661; MAF= 0.07847%, 101/128718 alleles, homozygotes = 0); grpmax FAF= 0.00068549.
This variant is present in gnomAD-Canada v1.0 (AF= 0.00043426338074041906, 8/18422 alleles, homozygotes = 0).
This variant has been reported in ClinVar as Likely benign (7 clinical laboratories) and as Benign (3 clinical laboratories) and as Uncertain significance (1 clinical laboratory). (ClinVarID = 362896)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.802. BayesDel score = 0.0686773.
OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. FGFR1, a receptor tyrosine kinase, is altered by mutation, chromosomal rearrangement or amplification in various cancer types including lung and breas
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.