About MEN1
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 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.
No pathogenic criterion marked as applied in the recorded assessment.
BA1 is met: NM_000244.3:c.435C>T is present at a high allele frequency in population databases, far exceeding the 1% threshold. In gnomAD v2.1, the overall allele frequency is 2.84% (8021/282758 alleles, 189 homozygotes), with the highest subpopulation frequency of 6.39% in European (Finnish) (1606/25120 alleles, 63 homozygotes). In gnomAD v4.1, the overall frequency is 3.54% (57090/1614046 alleles, 1240 homozygotes), with 6.38% in Finnish (4082/64030 alleles, 142 homozygotes). This allele frequency is incompatible with a highly penetrant autosomal dominant disorder such as MEN1.
BS1 is met: the allele frequency of 2.84–3.54% exceeds the >0.3% threshold. However, BA1 (stand-alone benign) is also met and subsumes BS1; BS1 is noted here for completeness but is superseded by the stronger BA1 criterion.
BS2 is met: the variant has been observed in 189 homozygous individuals in gnomAD v2.1 and 1240 homozygotes in gnomAD v4.1, as well as thousands of heterozygotes. gnomAD excludes individuals with severe pediatric disease; for a dominant high-penetrance cancer syndrome such as MEN1, the observation of healthy adults harboring this variant in the homozygous and heterozygous state supports a benign interpretation.
BP2 is met: given the high population frequency of this variant (AF 2.84–3.54%), it is statistically certain to occur in trans with known pathogenic MEN1 variants in healthy individuals. MEN1 is a fully penetrant autosomal dominant disorder; the absence of disease in individuals carrying both this variant and a pathogenic MEN1 variant supports a benign classification.
BP4 is met: SpliceAI predicts no splice impact (max delta score = 0.00). For a synonymous variant, the absence of a predicted splicing alteration constitutes computational evidence of no functional impact. Note that BP7 is the more specific criterion for synonymous variants; BP4 is applied here as additional corroborating computational evidence.
BP6 is met: ClinVar reports NM_000244.3:c.435C>T as Benign, supported by 18 clinical laboratories (ClinVar ID 96252). The inter-laboratory consensus across 18 submitters provides reputable source evidence for a benign classification.
BP7 is met: NM_000244.3:c.435C>T is a synonymous variant (p.Ser145=). SpliceAI predicts no significant splice impact (max delta score = 0.00), indicating that this variant does not create a novel splice site or disrupt the splice consensus sequence. The nucleotide is not predicted to affect normal splicing.
gene-specific framework 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, BS2 supporting benign, BP2 supporting benign, BP4 supporting benign, BP6 supporting benign, BP7 supporting benign; combination = 1 stand-alone benign + 1 strong benign + 5 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: 57,090 / 1,614,046 alleles. Recorded AF 0.0353707. Recorded homozygote count 1240.
This variant is present in gnomAD v2.1 (AF= 0.028367; MAF= 2.83670%, 8021/282758 alleles, homozygotes = 189) and has highest observed frequency in the European (Finnish) population (AF= 0.0639331; MAF= 6.39331%, 1606/25120 alleles, homozygotes = 63); grpmax FAF= 0.0423484.
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
18 Benign.
OncoKB identified curated literature and non-variant-specific oncogenicity context for review; listed oncogenicity label: Unknown Oncogenic Effect.
This variant has previously been reported in somatic cancers (COSMIC; COSV56341605, 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: 7 met · 15 not met · 0 not assessed · 4 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_000244.3:c.435C>T is a synonymous variant (p.Ser145=) in exon 2 of the MEN1 gene.
This variant is present at a high allele frequency in population databases: 2.84% overall in gnomAD v2.1 (8021/282758 alleles, 189 homozygotes) and 3.54% in gnomAD v4.1 (57090/1614046 alleles, 1240 homozygotes), with a maximum subpopulation frequency of 6.39% in the European (Finnish) population. This far exceeds the BA1 threshold of >1%, satisfying stand-alone benign evidence.
The variant has been observed in a homozygous state in 189 individuals in gnomAD v2.1 and 1240 individuals in gnomAD v4.1. For a highly penetrant autosomal dominant disorder such as MEN1, the observation of multiple healthy adult homozygotes is incompatible with pathogenicity.
SpliceAI predicts no splice impact (max delta score = 0.00), consistent with a silent synonymous change that does not alter normal splicing.
ClinVar classifies this variant as Benign, with consensus across 18 clinical laboratories (ClinVar ID 96252).
No pathogenic evidence was identified: no de novo occurrences, no functional studies demonstrating damage, no case-control enrichment, no cosegregation data, and no in silico predictions of pathogenicity.
Under generic ACMG/AMP 2015 rules, BA1 (stand-alone benign) alone is sufficient for a Benign classification. The additional supporting benign criteria (BS2, BP2, BP4, BP6, BP7) further reinforce the benign interpretation.
No criteria match.
Every interpreted variant in MEN1, mapped onto the exon structure of NM_000244.3. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| European (Finnish)4082 / 64,030 | 0.064142 hom |
| European (non-Finnish)49109 / 1,179,924 | 0.0421049 hom |
| Amish37 / 912 | 0.0411 hom |
| Remaining individuals1751 / 62,498 | 0.02836 hom |
| Middle Eastern75 / 6,062 | 0.0123 hom |
| Admixed American614 / 60,020 | 0.015 hom |
| South Asian694 / 91,084 | 0.00762 hom |
| Ashkenazi Jewish207 / 29,604 | 0.0072 hom |
| African/African American517 / 75,036 | 0.0069 |
| East Asian4 / 44,876 | 8.9e-05 |
| European (Finnish)1606 / 25,120 | 0.06463 hom |
| European (non-Finnish)5315 / 129,094 | 0.041110 hom |
| Remaining individuals233 / 7,218 | 0.0327 hom |
| Admixed American376 / 35,424 | 0.0116 hom |
| Ashkenazi Jewish81 / 10,368 | 0.00782 hom |
| South Asian234 / 30,614 | 0.00761 hom |
| African/African American173 / 24,968 | 0.0069 |
| East Asian3 / 19,952 | 0.00015 |
This variant is present in gnomAD v4.1 (AF= 0.0353707; MAF= 3.53707%, 57090/1614046 alleles, homozygotes = 1240) and has highest observed frequency in the European (Finnish) population (AF= 0.0637514; MAF= 6.37514%, 4082/64030 alleles, homozygotes = 142); grpmax FAF= 0.0413118.
This variant is present in gnomAD v2.1 (AF= 0.028367; MAF= 2.83670%, 8021/282758 alleles, homozygotes = 189) and has highest observed frequency in the European (Finnish) population (AF= 0.0639331; MAF= 6.39331%, 1606/25120 alleles, homozygotes = 63); grpmax FAF= 0.0423484.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
9 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= 0.0353707; MAF= 3.53707%, 57090/1614046 alleles, homozygotes = 1240) and has highest observed frequency in the European (Finnish) population (AF= 0.0637514; MAF= 6.37514%, 4082/64030 alleles, homozygotes = 142); grpmax FAF= 0.0413118.
This variant is present in gnomAD v2.1 (AF= 0.028367; MAF= 2.83670%, 8021/282758 alleles, homozygotes = 189) and has highest observed frequency in the European (Finnish) population (AF= 0.0639331; MAF= 6.39331%, 1606/25120 alleles, homozygotes = 63); grpmax FAF= 0.0423484.
This variant has been reported in ClinVar as Benign (18 clinical laboratories). (ClinVarID = 96252)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
OncoKB identified curated literature and non-variant-specific oncogenicity context for review; listed oncogenicity label: Unknown Oncogenic Effect.
This variant does not lie in a statistically significant hotspot. This variant has previously been reported in somatic cancers (COSMIC; COSV56341605, n = 2 times).
This variant does not lie in a statistically significant hotspot.