rs1254459338

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP2

The NM_001370259.2(MEN1):​c.1453C>T​(p.Arg485Trp) 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R485Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MEN1
NM_001370259.2 missense

Scores

6
11
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.57

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • multiple endocrine neoplasia type 1
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet, Ambry Genetics
  • familial isolated hyperparathyroidism
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • pituitary gigantism
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary pheochromocytoma-paraganglioma
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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, hereditary pheochromocytoma-paraganglioma, pituitary gigantism, familial isolated hyperparathyroidism.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MEN1NM_001370259.2 linkc.1453C>T p.Arg485Trp missense_variant Exon 10 of 10 ENST00000450708.7 NP_001357188.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MEN1ENST00000450708.7 linkc.1453C>T p.Arg485Trp missense_variant Exon 10 of 10 5 NM_001370259.2 ENSP00000394933.3 O00255-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1444226
Hom.:
0
Cov.:
42
AF XY:
0.00
AC XY:
0
AN XY:
718562
African (AFR)
AF:
0.00
AC:
0
AN:
33334
American (AMR)
AF:
0.00
AC:
0
AN:
44338
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25980
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39610
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86032
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40220
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5004
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1109810
Other (OTH)
AF:
0.00
AC:
0
AN:
59898
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Multiple endocrine neoplasia, type 1 Uncertain:1
Apr 24, 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 tryptophan, which is neutral and slightly polar, at codon 485 of the MEN1 protein (p.Arg485Trp). 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: 457300). 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) performed at Invitae indicates that this missense variant is expected to disrupt MEN1 protein function with a positive predictive value of 95%. RNA analysis performed to evaluate the impact of this missense change on mRNA splicing indicates it does not significantly alter splicing (Invitae). 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
Aug 06, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.R485W variant (also known as c.1453C>T), located in coding exon 9 of the MEN1 gene, results from a C to T substitution at nucleotide position 1453. The arginine at codon 485 is replaced by tryptophan, an amino acid with dissimilar properties. This amino acid position is highly 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
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Uncertain
0.090
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.36
T;.;.;.;.;D;D;D;D
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Uncertain
0.96
D;D;.;.;D;.;.;D;.
M_CAP
Pathogenic
0.96
D
MetaRNN
Uncertain
0.73
D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.1
.;.;.;.;.;M;M;M;M
PhyloP100
1.6
PrimateAI
Pathogenic
0.93
D
PROVEAN
Uncertain
-2.4
N;N;N;N;N;N;N;N;N
REVEL
Pathogenic
0.75
Sift
Uncertain
0.0020
D;D;D;D;D;D;D;D;D
Sift4G
Uncertain
0.016
D;D;D;D;D;D;D;D;D
Polyphen
1.0
.;D;D;D;D;D;D;D;D
Vest4
0.44
MutPred
0.56
.;.;.;.;.;Gain of MoRF binding (P = 0.0688);Gain of MoRF binding (P = 0.0688);Gain of MoRF binding (P = 0.0688);Gain of MoRF binding (P = 0.0688);
MVP
0.87
MPC
2.2
ClinPred
0.95
D
GERP RS
2.5
Varity_R
0.21
gMVP
0.76
Mutation Taster
=26/74
disease causing

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

Other links and lift over

dbSNP: rs1254459338; hg19: chr11-64572186; API