rs1555165503

Positions:

• chr11-64807589-AGGTCAAT-A

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_001370259.2(MEN1):​c.739_745del​(p.Ile247CysfsTer32) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. I247I) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MEN1 NM_001370259.2 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 8.08

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 12 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 11-64807589-AGGTCAAT-A is Pathogenic according to our data. Variant chr11-64807589-AGGTCAAT-A is described in ClinVar as [Pathogenic]. Clinvar id is 457337.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MEN1	NM_001370259.2	c.739_745del	p.Ile247CysfsTer32	frameshift_variant	4/10	ENST00000450708.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MEN1	ENST00000450708.7	c.739_745del	p.Ile247CysfsTer32	frameshift_variant	4/10	5	NM_001370259.2	P3

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Multiple endocrine neoplasia, type 1 Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Invitae

May 04, 2023

This variant has not been reported in the literature in individuals affected with MEN1-related conditions. For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 457337). This variant is not present in population databases (gnomAD no frequency). This sequence change creates a premature translational stop signal (p.Ile247Cysfs*32) 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). -

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs1555165503; hg19: chr11-64575061;