rs386134247

Variant names:

• chr11-64805645-TC-T
• rs386134247
• NM_001370259.2:c.1174delG

Your query was ambiguous. Multiple possible variants found:

• chr11-64805645-TC-T
• chr11-64805645-TC-TCC

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_001370259.2(MEN1):​c.1174delG​(p.Glu392SerfsTer53) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MEN1 NM_001370259.2 frameshift
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4
• Conservation: PhyloP100: 2.16

Genes affected

MEN1 (HGNC:7010): (menin 1) This gene encodes menin, a tumor suppressor associated with a syndrome known as multiple endocrine neoplasia type 1. Menin is a scaffold protein that functions in histone modification and epigenetic gene regulation. It is thought to regulate several pathways and processes by altering chromatin structure through the modification of histones. [provided by RefSeq, May 2019]

ACMG classification

Verdict is Pathogenic. Variant got 18 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-64805645-TC-T is Pathogenic according to our data. Variant chr11-64805645-TC-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 265238.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-64805645-TC-T is described in Lovd as [Pathogenic]. Variant chr11-64805645-TC-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MEN1	NM_001370259.2	c.1174delG	p.Glu392SerfsTer53	frameshift_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.1174delG	p.Glu392SerfsTer53	frameshift_variant	Exon 8 of 10	5	NM_001370259.2	ENSP00000394933.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Multiple endocrine neoplasia, type 1 Pathogenic:3

May 10, 2023

Laboratory of Molecular and Cytogenetics, Department of Anatomy, All India Institute of Medical Sciences (AIIMS)

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 24, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

For these reasons, this variant has been classified as Pathogenic. This variant has been observed in individual(s) with multiple endocrine neoplasia type 1 (PMID: 9215689). This variant is also known as 1280delG in the literature. ClinVar contains an entry for this variant (Variation ID: 265238). This variant is not present in population databases (ExAC no frequency). This sequence change results in a premature translational stop signal in the MEN1 gene (p.Glu392Serfs*53). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 219 amino acids of the MEN1 protein. This variant disrupts the C-terminus of the MEN1 protein. Other variant(s) that disrupt this region (p.Lys559Glufs*38) have been determined to be pathogenic (PMID: 10090472, Invitae). This suggests that variants that disrupt this region of the protein are likely to be causative of disease. -

Jan 23, 2018

Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided Pathogenic:1

Mar 30, 2017

GeneDx

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1174delG variant has been reported previously (as 1280delG) in association with multiple endocrine neoplasia type 1 (Agarwal et al., 1997). The c.1174delG variant causes a frameshift starting with codon Glutamic acid 392, changes this amino acid to a Serine residue and creates a premature Stop codon at position 53 of the new reading frame, denoted p.Glu392SerfsX53. This variant is predicted to cause loss of normal protein function either through protein truncation or nonsense-mediated mRNA decay. The c.1174delG variant was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. Based on currently available evidence, c.1174delG is a strong candidate for a pathogenic variant. However, the possibility it is a rare benign variant cannot be excluded. -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs386134247; hg19: chr11-64573117;