rs1211957325
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 3P and 5B. PM1PP2BP6BS2
The NM_001370259.2(MEN1):c.1123C>G(p.Leu375Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L375M) has been classified as Uncertain significance.
Frequency
Consequence
NM_001370259.2 missense
Scores
Clinical Significance
Conservation
Publications
- multiple endocrine neoplasia type 1Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet, Ambry Genetics
- familial isolated hyperparathyroidismInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- pituitary gigantismInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- hereditary pheochromocytoma-paragangliomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MEN1 | NM_001370259.2 | c.1123C>G | p.Leu375Val | missense_variant | Exon 8 of 10 | ENST00000450708.7 | NP_001357188.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MEN1 | ENST00000450708.7 | c.1123C>G | p.Leu375Val | missense_variant | Exon 8 of 10 | 5 | NM_001370259.2 | ENSP00000394933.3 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251460 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.00000410 AC: 6AN: 1461862Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 727240 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia, type 1 Uncertain:1Benign:1
This missense variant replaces leucine with valine at codon 375 of the MEN1 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 1/251460 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as likely 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