rs794728615
Variant summary
Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_001370259.2(MEN1):c.85C>T(p.Arg29*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R29R) has been classified as Likely benign.
Frequency
Consequence
NM_001370259.2 stop_gained
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: Pathogenic. The variant received 18 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MEN1 | NM_001370259.2 | c.85C>T | p.Arg29* | stop_gained | Exon 2 of 10 | ENST00000450708.7 | NP_001357188.2 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD2 exomes AF: 0.00 AC: 0AN: 236556 AF XY: 0.00
GnomAD4 exome Cov.: 35
GnomAD4 genome Cov.: 31
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia, type 1 Pathogenic:1
This sequence change creates a premature translational stop signal (p.Arg29*) in the MEN1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in MEN1 are known to be pathogenic (PMID: 12112656, 17853334). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with multiple endocrine neoplasia type 1 (PMID: 9832038, 10395246, 22549346, 24997771). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 200970). For these reasons, this variant has been classified as Pathogenic. -
Hereditary cancer-predisposing syndrome Pathogenic:1
The p.R29* pathogenic mutation (also known as c.85C>T), located in coding exon 1 of the MEN1 gene, results from a C to T substitution at nucleotide position 85. This changes the amino acid from an arginine to a premature termination codon. This mutation, also known in the literature as c.195C>T, has been reported in multiple individuals with MEN1 (Sato M et al. J Med Genet. 1998 Nov;35(11):915-9; Klein RD et al. Genet. Med. 2005 Feb; 7(2):131-8; Khoo J et al. Exp. Clin. Endocrinol. Diabetes. 2012 May; 120(5):257-60). This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). In addition to the clinical data presented in the literature, this alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at