rs541476418

Variant names:

• chr11-64810049-G-A
• rs541476418
• NM_001370259.2:c.61C>T

Your query was ambiguous. Multiple possible variants found:

• chr11-64810049-G-A
• chr11-64810049-G-C
• chr11-64810049-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_001370259.2(MEN1):​c.61C>T​(p.Arg21Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: MEN1 NM_001370259.2 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 3.05

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 Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the MEN1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 113 curated pathogenic missense variants (we use a threshold of 10). The gene has 20 curated benign missense variants. Trascript score misZ: 4.1921 (above the threshold of 3.09). GenCC associations: The gene is linked to multiple endocrine neoplasia type 1, pituitary gigantism, familial isolated hyperparathyroidism.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MEN1	NM_001370259.2	c.61C>T	p.Arg21Cys	missense_variant	Exon 2 of 10	ENST00000450708.7	NP_001357188.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MEN1	ENST00000450708.7	c.61C>T	p.Arg21Cys	missense_variant	Exon 2 of 10	5	NM_001370259.2	ENSP00000394933.3

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1448706 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 720184

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: 0.00

GnomAD4 genome Cov.: 30

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Multiple endocrine neoplasia, type 1 Uncertain:1

Dec 06, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 21 of the MEN1 protein (p.Arg21Cys). This variant is not present in population databases (gnomAD no frequency). 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: 1005485). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt MEN1 protein function with a negative predictive value of 80%. 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. -

Hereditary cancer-predisposing syndrome Uncertain:1

Mar 08, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.R21C variant (also known as c.61C>T), located in coding exon 1 of the MEN1 gene, results from a C to T substitution at nucleotide position 61. The arginine at codon 21 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.79	D;.;.;.;.;D;D;D;D;D;.;D;.;.
Eigen	Benign	-0.11
Eigen_PC	Benign	-0.071
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Pathogenic	0.98	D;D;.;.;D;.;.;D;.;D;D;D;.;D
M_CAP	Pathogenic	0.78	D
MetaRNN	Uncertain	0.73	D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Pathogenic	0.95	D
MutationAssessor	Benign	0.69	.;N;N;N;N;N;N;N;N;.;.;.;.;.
PrimateAI	Uncertain	0.75	T
PROVEAN	Uncertain	-3.5	D;D;D;D;D;D;D;D;D;D;D;D;D;D
REVEL	Pathogenic	0.77
Sift	Uncertain	0.017	D;D;D;D;D;D;D;D;D;D;D;D;D;D
Sift4G	Uncertain	0.044	D;D;D;D;D;D;D;D;D;.;D;D;.;.
Polyphen		0.73, 1.0, 1.0	.;P;D;D;D;D;D;D;D;.;.;.;.;.
Vest4		0.51
MutPred		0.62		Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);Gain of loop (P = 0.0195);
MVP		0.96
MPC		2.5
ClinPred		0.98	D
GERP RS		2.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.59
gMVP		0.44

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: rs541476418; hg19: chr11-64577521;