rs1114167493

Positions:

• chr11-64807082-C-T

Variant summary

Our verdict is Pathogenic. Variant got 15 ACMG points: 15P and 0B. PS1 PM1 PM2 PP2 PP3_Strong PP5_Moderate

The NM_001370259.2(MEN1):​c.841G>A​(p.Gly281Arg) variant causes a missense 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 Likely pathogenic (★). Another nucleotide change resulting in same amino acid change has been previously reported as Pathogenicin Lovd. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G281E) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MEN1 NM_001370259.2 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 6.46

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 15 ACMG points.

• PS1: Transcript NM_001370259.2 (MEN1) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in Lovd
• PM1: In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 12 uncertain in NM_001370259.2
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, MEN1
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.985
• PP5: Variant 11-64807082-C-T is Pathogenic according to our data. Variant chr11-64807082-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 428031.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr11-64807082-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MEN1	NM_001370259.2	c.841G>A	p.Gly281Arg	missense_variant	6/10	ENST00000450708.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MEN1	ENST00000450708.7	c.841G>A	p.Gly281Arg	missense_variant	6/10	5	NM_001370259.2	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hereditary cancer-predisposing syndrome Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 10, 2014

The p.G281R variant (also known as c.841G>A), located in coding exon 5 of the MEN1 gene, results from a G to A substitution at nucleotide position 841. The glycine at codon 281 is replaced by arginine, an amino acid with dissimilar properties.This alteration has been reported in one individual with a clinical diagnosis of MEN1 (Crepin M et al. Electrophoresis. 2003 Jan;24(1-2):26-33).A similar alteration, c.841G>C, has been reported in one family with hyperparathyroidism, a pituitary adenoma, and CNS tumors (Wautot V et al. Hum Mutat. 2002 Jul;20(1):35-47).This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), and 1000 Genomes Project. To date, this alteration has been detected with an allele frequency of approximately 0.10% (greater than 1000 alleles tested) in our clinical cohort (includes this individual). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be probably damaging and deleterious by PolyPhen and SIFT in silico analyses, respectively.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	0.54	D
BayesDel_noAF	Pathogenic	0.54
CADD	Pathogenic	32
DANN	Pathogenic	1.0
DEOGEN2	Pathogenic	0.91	D;.;.;.;.;D;D;D;D;D;.
Eigen	Uncertain	0.64
Eigen_PC	Uncertain	0.59
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Pathogenic	0.98	D;D;.;.;D;.;.;D;.;D;D
M_CAP	Pathogenic	0.62	D
MetaRNN	Pathogenic	0.98	D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Pathogenic	1.0	D
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D;D;D
PrimateAI	Pathogenic	0.90	D
PROVEAN	Pathogenic	-6.1	D;D;D;D;D;D;D;D;D;D;D
REVEL	Pathogenic	0.97
Sift	Uncertain	0.0010	D;D;D;D;D;D;D;D;D;D;D
Sift4G	Uncertain	0.0020	D;D;D;D;D;D;D;D;D;.;D
Polyphen		1.0, 1.0	.;D;D;D;D;D;D;D;D;.;.
Vest4		0.94
MutPred		0.90		.;.;.;.;.;Gain of helix (P = 0.027);Gain of helix (P = 0.027);Gain of helix (P = 0.027);Gain of helix (P = 0.027);.;.;
MVP		0.99
MPC		2.4
ClinPred		1.0	D
GERP RS		4.2
Varity_R		0.91
gMVP		0.97

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: rs1114167493; hg19: chr11-64574554;