rs1114167533

Positions:

• chr11-64805115-C-T

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.1269G>A​(p.Trp423*) variant causes a stop gained change. 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 (★★).

• Frequency: Genomes: not found (cov: 34)
• Consequence: MEN1 NM_001370259.2 stop_gained
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 6.83

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]

MEN1 (HGNC:):

ACMG classification

Verdict is Pathogenic. Variant got 18 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most 50 bp of the penultimate exon, not predicted to undergo nonsense mediated mRNA decay. There are 81 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-64805115-C-T is Pathogenic according to our data. Variant chr11-64805115-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 428077.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-64805115-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MEN1	NM_001370259.2	c.1269G>A	p.Trp423*	stop_gained	9/10	ENST00000450708.7	NP_001357188.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MEN1	ENST00000450708.7	c.1269G>A	p.Trp423*	stop_gained	9/10	5	NM_001370259.2	ENSP00000394933.3

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 56

GnomAD4 genome Cov.: 34

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Aug 16, 2017

The MEN1 c.1269G>A; p.Trp423Ter variant (rs1114167533) has been described in the literature in an individual with multiple endocrine neoplasia type 1 (MEN 1) (Takagi 2006). It is reported in ClinVar (Variation ID: 428077), and is absent from general population databases (Exome Variant Server, Genome Aggregation Database). This variant induces an early termination codon and is predicted to result in a truncated protein or absent transcript. Taken together, this variant is considered pathogenic. REFERENCES Link to ClinVar database for p.Trp423Ter: https://www.ncbi.nlm.nih.gov/clinvar/variation/428077/ Takagi J et al. Multiple endocrine neoplasia type I and Cushing's syndrome due to an aggressive ACTH producing thymic carcinoid. Intern Med. 2006;45(2):81-6. Epub 2006 Feb 15. -

Hereditary cancer-predisposing syndrome Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 06, 2016

The p.W423* pathogenic mutation (also known as c.1269G>A), located in coding exon 8 of the MEN1 gene, results from a G to A substitution at nucleotide position 1269. This changes the amino acid from a tryptophan to a stop codon within coding exon 8. This mutation has previously been reported in a Japanese male diagnosed with MEN1 (Takagi J et al. Intern. Med. 2006 Feb; 45(2):81-6). In addition to the clinical data presented in the literature, since premature stop codons are typically deleterious in nature, this alteration is interpreted as a disease-causing mutation (ACMG Recommendations for Standards for Interpretation and Reporting of Sequence Variations. Revision 2007. Genet Med. 2008;10:294). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.62	D
BayesDel_noAF	Pathogenic	0.65
CADD	Pathogenic	43
DANN	Uncertain	1.0
Eigen	Pathogenic	0.81
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.99	D
Vest4		0.94
GERP RS		4.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs1114167533; hg19: chr11-64572587;