rs2023748

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000245.4(MET):​c.4017G>A​(p.Ala1339Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.435 in 1,613,922 control chromosomes in the GnomAD database, including 158,321 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. A1339A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.35 ( 11151 hom., cov: 32)
Exomes 𝑓: 0.44 ( 147170 hom. )

Consequence

MET
NM_000245.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:15

Conservation

PhyloP100: -0.968
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.72).
BP6
Variant 7-116795968-G-A is Benign according to our data. Variant chr7-116795968-G-A is described in ClinVar as [Benign]. Clinvar id is 93575.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-116795968-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-0.968 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.455 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
METNM_000245.4 linkc.4017G>A p.Ala1339Ala synonymous_variant Exon 21 of 21 ENST00000397752.8 NP_000236.2 P08581-1A0A024R759
METNM_001127500.3 linkc.4071G>A p.Ala1357Ala synonymous_variant Exon 21 of 21 NP_001120972.1 P08581-2A0A024R728
METNM_001324402.2 linkc.2727G>A p.Ala909Ala synonymous_variant Exon 20 of 20 NP_001311331.1 B4DLF5
METXM_011516223.2 linkc.4074G>A p.Ala1358Ala synonymous_variant Exon 22 of 22 XP_011514525.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
METENST00000397752.8 linkc.4017G>A p.Ala1339Ala synonymous_variant Exon 21 of 21 1 NM_000245.4 ENSP00000380860.3 P08581-1
METENST00000318493.11 linkc.4071G>A p.Ala1357Ala synonymous_variant Exon 21 of 21 1 ENSP00000317272.6 P08581-2
METENST00000436117.3 linkn.*1622G>A non_coding_transcript_exon_variant Exon 20 of 20 1 ENSP00000410980.2 P08581-3
METENST00000436117.3 linkn.*1622G>A 3_prime_UTR_variant Exon 20 of 20 1 ENSP00000410980.2 P08581-3

Frequencies

GnomAD3 genomes
AF:
0.350
AC:
53248
AN:
151968
Hom.:
11164
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.101
Gnomad AMI
AF:
0.307
Gnomad AMR
AF:
0.444
Gnomad ASJ
AF:
0.487
Gnomad EAS
AF:
0.470
Gnomad SAS
AF:
0.458
Gnomad FIN
AF:
0.382
Gnomad MID
AF:
0.430
Gnomad NFE
AF:
0.451
Gnomad OTH
AF:
0.391
GnomAD3 exomes
AF:
0.435
AC:
108367
AN:
249310
Hom.:
24773
AF XY:
0.437
AC XY:
59123
AN XY:
135250
show subpopulations
Gnomad AFR exome
AF:
0.0901
Gnomad AMR exome
AF:
0.519
Gnomad ASJ exome
AF:
0.487
Gnomad EAS exome
AF:
0.460
Gnomad SAS exome
AF:
0.460
Gnomad FIN exome
AF:
0.394
Gnomad NFE exome
AF:
0.447
Gnomad OTH exome
AF:
0.457
GnomAD4 exome
AF:
0.444
AC:
649623
AN:
1461836
Hom.:
147170
Cov.:
69
AF XY:
0.446
AC XY:
323984
AN XY:
727228
show subpopulations
Gnomad4 AFR exome
AF:
0.0877
Gnomad4 AMR exome
AF:
0.511
Gnomad4 ASJ exome
AF:
0.490
Gnomad4 EAS exome
AF:
0.490
Gnomad4 SAS exome
AF:
0.455
Gnomad4 FIN exome
AF:
0.399
Gnomad4 NFE exome
AF:
0.451
Gnomad4 OTH exome
AF:
0.441
GnomAD4 genome
AF:
0.350
AC:
53224
AN:
152086
Hom.:
11151
Cov.:
32
AF XY:
0.352
AC XY:
26188
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.101
Gnomad4 AMR
AF:
0.444
Gnomad4 ASJ
AF:
0.487
Gnomad4 EAS
AF:
0.470
Gnomad4 SAS
AF:
0.456
Gnomad4 FIN
AF:
0.382
Gnomad4 NFE
AF:
0.451
Gnomad4 OTH
AF:
0.386
Alfa
AF:
0.423
Hom.:
18065
Bravo
AF:
0.345
Asia WGS
AF:
0.415
AC:
1442
AN:
3478
EpiCase
AF:
0.452
EpiControl
AF:
0.450

ClinVar

Significance: Benign
Submissions summary: Benign:15
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:7
-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jan 19, 2016
GeneDx
Significance: 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 criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Jul 30, 2014
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Papillary renal cell carcinoma type 1 Benign:3
Nov 15, 2024
Myriad Genetics, Inc.
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -

Jan 13, 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. -

Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:2
Aug 19, 2016
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: The c.4071G>A (p.Ala1357=) in MET gene is a synonymous change that involves a non-conserved nucleotide. 5/5 programs in Alamut predict that this variant does not affect normal splicing, however no functional studies supporting this notion were published at the time of evaluation. The variant is present in the control population dataset of ExAC at frequency of 0.4245 (51253/120730chrs tested) including numerous homozygous occurrences. The variant of interest has not, to our knowledge, been reported in affected individuals via publication but is cited as Benign by reputable databases/clinical laboratories. Taking together, based on the prevalence of this variant in general population the variant was classified as Benign. -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Autosomal recessive nonsyndromic hearing loss 97 Benign:1
Sep 05, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Renal cell carcinoma Benign:1
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:1
Nov 19, 2014
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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
0.19
DANN
Benign
0.72

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: rs2023748; hg19: chr7-116436022; COSMIC: COSV59255937; API