rs794728618

Positions:

• chr11-64808030-T-A
• chr11-64808030-T-C

Variant summary

Our verdict is Pathogenic. Variant got 17 ACMG points: 17P and 0B. PM2 PM5 PP2 PP3_Strong PP5_Very_Strong

The NM_001370259.2(MEN1):​c.515A>T​(p.Asp172Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,860 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D172Y) has been classified as Pathogenic.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: MEN1 NM_001370259.2 missense
• Clinical Significance: Likely pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 7.11

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 17 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr11-64808031-C-A is described in Lovd as [Pathogenic].
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), MEN1. . Trascript score misZ 4.1921 (greater than threshold 3.09). GenCC has associacion of gene with multiple endocrine neoplasia type 1, pituitary gigantism, familial isolated hyperparathyroidism.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.978
• PP5: Variant 11-64808030-T-A is Pathogenic according to our data. Variant chr11-64808030-T-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 200973.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MEN1	NM_001370259.2	c.515A>T	p.Asp172Val	missense_variant	3/10	ENST00000450708.7	NP_001357188.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MEN1	ENST00000450708.7	c.515A>T	p.Asp172Val	missense_variant	3/10	5	NM_001370259.2	ENSP00000394933	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461860 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727234

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Jun 29, 2016

The D172V mutation has not been published as a germline mutation, nor has it been reported as a benign polymorphism to our knowledge. It has been published as a somatic mutation in a neuroendocrine lung tumor (Gortz et al., 1999). Another germline mutation as this same position (D172Y) has also been published in association with MEN1 (Giraud et al., 1998). D172V is a non-conservative amino acid substitution as a negatively-charged Aspartic Acid is replaced with a neutral Valine residue at a position that is highly conserved across species. Furthermore, the NHLBI ESP Exome Variant Server reports D172V was not observed in approximately 6,000 samples from individuals of European and African American backgrounds, indicating it is not a common benign variant in these populations. -

Hereditary cancer-predisposing syndrome Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 14, 2017

The p.D172V variant (also known as c.515A>T), located in coding exon 2 of the MEN1 gene, results from an A to T substitution at nucleotide position 515. The aspartic acid at codon 172 is replaced by valine, an amino acid with highly dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. This variant has been detected in multiple individuals whose personal and familial clinical histories are consistent with MEN1 (Ambry internal data). In addition, this alteration is expected to have the same destabilization energy as MEN1 p.D172Y, another substitution at the same amino acid position (Ambry internal data). p.D172Y has been identified in multiple patients diagnosed with sporadic or familial MEN1 (Giraud, S et al. Am J Hum Genet. 1998 Aug;63(2):455-67; Poncin, J et al. Hum Mutat. 1999;13(1):54-60; Verges, B et al. J Clin Endocrinol Metab. 2002 Feb;87(2):457-65; Wautot, V et al. Hum Mutat. 2002 Jul;20(1):35-47; Fujii, T et al. Pathol Int. 1999 Nov;49(11):968-73). Based on the majority of available evidence to date, this variant is likely to be pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.56	D
BayesDel_noAF	Pathogenic	0.56
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.92	D;.;.;.;.;D;D;D;D;D;.;D
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Pathogenic	0.98	D;D;.;.;D;.;.;D;.;D;D;D
M_CAP	Pathogenic	0.93	D
MetaRNN	Pathogenic	0.98	D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Uncertain	2.6	.;.;.;.;.;M;M;M;M;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D;D;D
PrimateAI	Pathogenic	0.85	D
PROVEAN	Pathogenic	-8.4	D;D;D;D;D;D;D;D;D;D;D;D
REVEL	Pathogenic	0.94
Sift	Pathogenic	0.0	D;D;D;D;D;D;D;D;D;D;D;D
Sift4G	Pathogenic	0.0010	D;D;D;D;D;D;D;D;D;.;D;D
Polyphen		1.0, 0.95, 0.98	.;D;P;P;P;D;D;D;D;.;.;.
Vest4		0.95
MutPred		0.85		.;.;.;.;.;Gain of sheet (P = 0.0011);Gain of sheet (P = 0.0011);Gain of sheet (P = 0.0011);Gain of sheet (P = 0.0011);.;.;.;
MVP		1.0
MPC		2.4
ClinPred		1.0	D
GERP RS		4.8
Varity_R		0.94
gMVP		1.0

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: rs794728618; hg19: chr11-64575502; COSMIC: COSV53644438; COSMIC: COSV53644438;