rs966793401

Positions:

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 3P and 5B. PM1PP2BP4BS2

The NM_001370259.2(MEN1):c.16G>T(p.Ala6Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000562 in 1,244,496 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A6T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000056 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

MEN1
NM_001370259.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 1.13

Variant links:

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 11 uncertain in NM_001370259.2

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.

BP4

Computational evidence support a benign effect (MetaRNN=0.28496087).

BS2

High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MEN1	NM_001370259.2 linkuse as main transcript	c.16G>T	p.Ala6Ser	missense_variant	2/10	ENST00000450708.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MEN1	ENST00000450708.7 linkuse as main transcript	c.16G>T	p.Ala6Ser	missense_variant	2/10	5	NM_001370259.2	P3	O00255-2

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

144924

Hom.:

Cov.:

FAILED QC

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000937

AC:

AN:

213384

Hom.:

AF XY:

0.00000851

AC XY:

AN XY:

117560

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000793

Gnomad NFE exome

AF:

0.0000105

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000562

AC:

AN:

1244496

Hom.:

Cov.:

AF XY:

0.00000487

AC XY:

AN XY:

615912

show subpopulations

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:

0.0000351

Gnomad4 NFE exome

AF:

0.00000617

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

144924

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

70462

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Multiple endocrine neoplasia, type 1

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 09, 2024	This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 6 of the MEN1 protein (p.Ala6Ser). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with MEN1-related conditions. ClinVar contains an entry for this variant (Variation ID: 485712). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on MEN1 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Uncertain significance, criteria provided, single submitter	clinical testing	All of Us Research Program, National Institutes of Health	Dec 01, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	St. Jude Molecular Pathology, St. Jude Children's Research Hospital	Jul 11, 2022	The MEN1 c.16G>T (p.Ala6Ser) missense change has a maximum population frequency of 0.0079% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL is inconclusive about a pathogenic or benign effect of this variant on protein function, and to our knowledge functional studies have not been performed. To our knowledge, this variant has not been reported in individuals with multiple endocrine neoplasia type I or MEN1-associated tumors. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -

Hereditary cancer-predisposing syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 26, 2022

The p.A6S variant (also known as c.16G>T), located in coding exon 1 of the MEN1 gene, results from a G to T substitution at nucleotide position 16. The alanine at codon 6 is replaced by serine, an amino acid with similar properties. In one study, which performed structural analysis for MEN1 missense variants, this alteration did not meet the threshold for pathogenicity (Caswell RC et al. J Endocr Soc, 2019 Dec;3:2258-2275). This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.084

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

-0.020

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Uncertain

0.50

D;.;.;.;.;D;D;D;D;D;.;D;.;.

Eigen

Benign

-0.19

Eigen_PC

Benign

-0.020

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.87

D;D;.;.;D;.;.;D;.;D;D;D;.;D

M_CAP

Pathogenic

0.30

MetaRNN

Benign

0.28

T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Pathogenic

0.83

MutationAssessor

Benign

1.3

.;L;L;L;L;L;L;L;L;.;.;.;.;.

MutationTaster

Benign

0.97

D;D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-0.30

N;N;N;N;N;N;N;N;N;N;N;N;N;N

REVEL

Uncertain

0.49

Sift

Benign

0.44

T;T;T;T;T;T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.71

T;T;T;T;T;T;T;T;T;.;T;T;.;.

Polyphen

0.94, 0.12, 0.14

.;P;B;B;B;B;B;B;B;.;.;.;.;.

Vest4

0.23

MutPred

0.52

Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);Loss of helix (P = 0.0017);

MVP

0.84

MPC

1.3

ClinPred

0.21

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.29

gMVP

0.21

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over