rs141679530
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 1P and 7B. PP2BP4_ModerateBP6BS2
The NM_001370259.2(MEN1):c.1535C>T(p.Ser512Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000218 in 1,605,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_001370259.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MEN1 | NM_001370259.2 | c.1535C>T | p.Ser512Leu | missense_variant | Exon 10 of 10 | ENST00000450708.7 | NP_001357188.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000105 AC: 16AN: 152222Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000341 AC: 8AN: 234456Hom.: 0 AF XY: 0.0000156 AC XY: 2AN XY: 128362
GnomAD4 exome AF: 0.0000131 AC: 19AN: 1453332Hom.: 0 Cov.: 42 AF XY: 0.0000152 AC XY: 11AN XY: 722870
GnomAD4 genome AF: 0.000105 AC: 16AN: 152222Hom.: 0 Cov.: 33 AF XY: 0.0000672 AC XY: 5AN XY: 74368
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia, type 1 Uncertain:2Benign:3
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
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The MEN1 c.1535C>T (p.Ser512Leu) missense change has a maximum population frequency of 0.03% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL is inconclusive about a pathogenic or benign effect of this variant on protein function, and to our knowledge functional studies have not been performed. To our knowledge, this variant has not been reported in individuals with MEN1-associated tumors. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -
This variant is considered likely benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -
not specified Uncertain:1
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not provided Uncertain:1
In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
MEN1-related disorder Uncertain:1
The MEN1 c.1550C>T variant is predicted to result in the amino acid substitution p.Ser517Leu. This variant has been reported in an individual, described as c.1535C>T (p.Ser512Leu), with a family history of breast cancer (Supplementary table 2, Chan GHJ et al 2018. PubMed ID: 30093976). This variant is reported in 0.039% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/11-64572104-G-A) and has conflicting interpretations regarding its pathogenicity in ClinVar, ranging from benign to uncertain (https://www.ncbi.nlm.nih.gov/clinvar/variation/188265/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Hyperparathyroidism Uncertain:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at