rs199701987

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_000245.4(MET):​c.406G>A​(p.Val136Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000255 in 1,613,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

MET
NM_000245.4 missense

Scores

5
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:7

Conservation

PhyloP100: 3.80
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.005215943).
BP6
Variant 7-116699490-G-A is Benign according to our data. Variant chr7-116699490-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 142059.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=2, Uncertain_significance=7}.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000572 (87/152228) while in subpopulation NFE AF= 0.000397 (27/68004). AF 95% confidence interval is 0.00028. There are 0 homozygotes in gnomad4. There are 48 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
METNM_000245.4 linkc.406G>A p.Val136Ile 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.406G>A p.Val136Ile missense_variant Exon 2 of 21 1 NM_000245.4 ENSP00000380860.3 P08581-1

Frequencies

GnomAD3 genomes
AF:
0.000572
AC:
87
AN:
152110
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.0482
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.000472
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000397
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000277
AC:
69
AN:
249054
Hom.:
0
AF XY:
0.000266
AC XY:
36
AN XY:
135100
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.0000994
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.000697
Gnomad NFE exome
AF:
0.000390
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.000222
AC:
325
AN:
1461742
Hom.:
0
Cov.:
32
AF XY:
0.000230
AC XY:
167
AN XY:
727184
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.000153
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.000824
Gnomad4 NFE exome
AF:
0.000226
Gnomad4 OTH exome
AF:
0.000248
GnomAD4 genome
AF:
0.000572
AC:
87
AN:
152228
Hom.:
0
Cov.:
32
AF XY:
0.000645
AC XY:
48
AN XY:
74430
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.000472
Gnomad4 NFE
AF:
0.000397
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000395
Hom.:
0
Bravo
AF:
0.000623
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000239
AC:
2
ExAC
AF:
0.000240
AC:
29
EpiCase
AF:
0.000327
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:7Benign:7
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Papillary renal cell carcinoma type 1 Uncertain:1Benign:2
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Aug 01, 2024
St. Jude Molecular Pathology, St. Jude Children's Research Hospital
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The MET c.406G>A (p.Val136Ile)? missense change has a maximum founder subpopulation frequency of 0.076% and a maximum non-founder subpopulation frequency of 0.043% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org). The in silico tool REVEL predicts a benign effect on protein function, but to our knowledge this prediction has not been confirmed by functional studies. To our knowledge, this variant has not been reported in individuals with hereditary papillary renal cell carcinoma. 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.?? -

Nov 06, 2024
Myriad Genetics, Inc.
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -

not provided Uncertain:2
Sep 23, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Observed in individuals with colorectal cancer and mesothelioma (PMID: 21774103, 21970370); This variant is associated with the following publications: (PMID: 21970370, 18709663, 24465403, 21904579, 28166811, 25992381, 21774103, 30949922, 29641532, 28259294) -

Nov 03, 2021
Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Uncertain:1Benign:1
Jul 31, 2024
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 24, 2024
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: MET c.406G>A (p.Val136Ile) results in a conservative amino acid change located in the Sema domain (IPR001627) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00028 in 249054 control chromosomes, predominantly at a frequency of 0.00039 within the Non-Finnish European subpopulation in the gnomAD database. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 260 fold of the estimated maximal expected allele frequency for a pathogenic variant in MET causing Papillary Renal Cell Carcinoma phenotype (1.5e-06). To our knowledge, no occurrence of c.406G>A in individuals affected with Papillary Renal Cell Carcinoma and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 142059). Based on the evidence outlined above, the variant was classified as likely benign. -

Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
Nov 15, 2021
Sema4, Sema4
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Sep 30, 2022
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Papillary renal cell carcinoma type 1;C2239176:Hepatocellular carcinoma;C4084709:Autosomal recessive nonsyndromic hearing loss 97;C4085248:Osteofibrous dysplasia Uncertain:1
May 23, 2017
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Breast carcinoma Uncertain:1
Jan 01, 2019
Institute of Human Genetics, University of Leipzig Medical Center
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

MET-related disorder Benign:1
Jan 04, 2024
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Renal cell carcinoma Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer Benign:1
Feb 27, 2025
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following: it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease, and/or has normal protein function, and/or has lack of segregation with disease, and/or has been detected in co-occurrence with known pathogenic variant, and/or has lack of disease association in case-control studies, and/or is located in a region inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.27
.;T;.;.
Eigen
Uncertain
0.36
Eigen_PC
Uncertain
0.45
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.74
T;T;T;T
M_CAP
Benign
0.0046
T
MetaRNN
Benign
0.0052
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.2
.;L;L;L
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.50
N;N;N;N
REVEL
Benign
0.093
Sift
Benign
0.12
T;T;T;T
Sift4G
Uncertain
0.043
D;T;T;T
Polyphen
0.96, 0.17
.;D;B;.
Vest4
0.14, 0.10, 0.15
MVP
0.31
MPC
0.21
ClinPred
0.028
T
GERP RS
5.6
Varity_R
0.047
gMVP
0.28

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.

Other links and lift over

dbSNP: rs199701987; hg19: chr7-116339544; COSMIC: COSV100577250; API