rs772014416

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_000245.4(MET):​c.1113C>A​(p.Asn371Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000694 in 1,440,478 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Synonymous variant affecting the same amino acid position (i.e. N371N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

MET
NM_000245.4 missense

Scores

1
10
8

Clinical Significance

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

Conservation

PhyloP100: -0.131

Publications

0 publications found
Variant links:
Genes affected
MET (HGNC:7029): (MET proto-oncogene, receptor tyrosine kinase) This gene encodes a member of the receptor tyrosine kinase family of proteins and the product of the proto-oncogene MET. The encoded preproprotein is proteolytically processed to generate alpha and beta subunits that are linked via disulfide bonds to form the mature receptor. Further processing of the beta subunit results in the formation of the M10 peptide, which has been shown to reduce lung fibrosis. Binding of its ligand, hepatocyte growth factor, induces dimerization and activation of the receptor, which plays a role in cellular survival, embryogenesis, and cellular migration and invasion. Mutations in this gene are associated with papillary renal cell carcinoma, hepatocellular carcinoma, and various head and neck cancers. Amplification and overexpression of this gene are also associated with multiple human cancers. [provided by RefSeq, May 2016]
COMETT (HGNC:51196): (cytosolic oncogenic antisense to MET transcript) This gene encodes a natural antisense transcript highly expressed in papillary thyroid carcinomas harboring BRAF V600E mutation or RET gene rearrangements. This lncRNA induces the downstream MAPK pathway and is part of a co-expression network including different oncogenes belonging to the MAPK and PI3H/AKT pathways. In thyroid carcinomas, this gene has oncogenic properties associated with increased proliferation and drug resistance. [provided by RefSeq, Jan 2020]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
METNM_000245.4 linkc.1113C>A p.Asn371Lys missense_variant Exon 2 of 21 ENST00000397752.8 NP_000236.2 P08581-1A0A024R759

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
METENST00000397752.8 linkc.1113C>A p.Asn371Lys missense_variant Exon 2 of 21 1 NM_000245.4 ENSP00000380860.3 P08581-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
227516
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.94e-7
AC:
1
AN:
1440478
Hom.:
0
Cov.:
32
AF XY:
0.00000140
AC XY:
1
AN XY:
715354
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32366
American (AMR)
AF:
0.00
AC:
0
AN:
39890
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24730
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39600
South Asian (SAS)
AF:
0.0000123
AC:
1
AN:
81076
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52834
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5624
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1104880
Other (OTH)
AF:
0.00
AC:
0
AN:
59478
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Renal cell carcinoma Uncertain:1
Feb 01, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces asparagine with lysine at codon 371 of the MET protein (p.Asn371Lys). The asparagine residue is highly conserved and there is a moderate physicochemical difference between asparagine and lysine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with MET-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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
Feb 24, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.N371K variant (also known as c.1113C>A), located in coding exon 1 of the MET gene, results from a C to A substitution at nucleotide position 1113. The asparagine at codon 371 is replaced by lysine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. 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
0.83
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
15
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.44
T;.;.
Eigen
Benign
0.073
Eigen_PC
Benign
0.016
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Benign
0.025
D
MetaRNN
Uncertain
0.66
D;D;D
MetaSVM
Benign
-1.2
T
MutationAssessor
Uncertain
2.0
M;M;M
PhyloP100
-0.13
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.1
D;D;D
REVEL
Benign
0.23
Sift
Uncertain
0.0020
D;D;D
Sift4G
Uncertain
0.0060
D;D;D
Polyphen
0.90
P;D;.
Vest4
0.76
MutPred
0.69
Gain of methylation at N371 (P = 0.0168);Gain of methylation at N371 (P = 0.0168);Gain of methylation at N371 (P = 0.0168);
MVP
0.55
MPC
0.71
ClinPred
0.96
D
GERP RS
1.7
Varity_R
0.87
gMVP
0.76
Mutation Taster
=5/95
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: rs772014416; hg19: chr7-116340251; API