NM_000245.4:c.3218C>T

Variant names:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_000245.4(MET):c.3218C>T(p.Pro1073Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000107 in 1,614,124 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

MET
NM_000245.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:4

Conservation

PhyloP100: 4.65

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]

MET links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.17664897).

BP6

Variant 7-116775070-C-T is Benign according to our data. Variant chr7-116775070-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 135966.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=6}.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0000722 (11/152278) while in subpopulation AMR AF= 0.000327 (5/15296). AF 95% confidence interval is 0.000129. There are 0 homozygotes in gnomad4. There are 5 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
MET	NM_000245.4 link	c.3218C>T	p.Pro1073Leu	missense_variant	Exon 15 of 21	ENST00000397752.8	NP_000236.2	P08581-1A0A024R759
MET	NM_001127500.3 link	c.3272C>T	p.Pro1091Leu	missense_variant	Exon 15 of 21		NP_001120972.1	P08581-2A0A024R728
MET	NM_001324402.2 link	c.1928C>T	p.Pro643Leu	missense_variant	Exon 14 of 20		NP_001311331.1	B4DLF5
MET	XM_011516223.2 link	c.3275C>T	p.Pro1092Leu	missense_variant	Exon 16 of 22		XP_011514525.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MET	ENST00000397752.8 link	c.3218C>T	p.Pro1073Leu	missense_variant	Exon 15 of 21	1	NM_000245.4	ENSP00000380860.3		P08581-1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000124

AC:

AN:

249486

Hom.:

AF XY:

0.000140

AC XY:

AN XY:

135338

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000168

Gnomad OTH exome

AF:

0.000330

GnomAD4 exome

AF:

0.000111

AC:

162

AN:

1461846

Hom.:

Cov.:

AF XY:

0.000110

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000224

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:

0.000133

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152278

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.000140

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000119

AC:

ExAC

AF:

0.000116

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000237

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:4

Jul 30, 2024

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

May 10, 2019

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 08, 2024

Clinical Genomics Laboratory, Washington University in St. Louis

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

A MET c.3218C>T (p.Pro1073Leu) variant was identified at a near heterozygous allelic fraction of 46.6%, a frequency which may be consistent with germline origin. This variant, to our knowledge, has not been reported in the medical literature in individuals with lymphedema or lymphovenous malformation. The MET c.3218C>T (p.Pro1073Leu) variant is observed on 173/1,614,124 alleles in the general population (gnomAD v.4.1.0). This variant has been reported in the ClinVar database as a germline variant of uncertain significance by three submitters as well as a likely benign variant by three submitters (ClinVar ID: 135966). Computational predictors suggest that the variant does not impact MET function. Due to limited information, and based on ACMG/AMP guidelines for variant interpretation (Richards S et al., PMID: 25741868), the clinical significance of the MET c.3218C>T (p.Pro1073Leu) variant is uncertain at this time. -

Jun 25, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in individuals with breast and colon cancer (PMID: 29684080, 35264596); This variant is associated with the following publications: (PMID: 35210353, 35264596, 29684080) -

Renal cell carcinoma

Uncertain:1

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 1091 of the MET protein (p.Pro1091Leu). This variant is present in population databases (rs370529693, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with MET-related conditions. ClinVar contains an entry for this variant (Variation ID: 135966). 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 MET 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. -

Papillary renal cell carcinoma type 1;C2239176:Hepatocellular carcinoma;C4084709:Autosomal recessive nonsyndromic hearing loss 97;C4085248:Osteofibrous dysplasia;C5774205:Arthrogryposis, distal, IIa 11

Uncertain:1

May 14, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:1

Apr 08, 2022

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Papillary renal cell carcinoma type 1

Benign:1

Nov 13, 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. -

Hereditary cancer-predisposing syndrome

Benign:1

Mar 07, 2019

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely 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. -

Hereditary cancer

Benign:1

Jan 23, 2024

Mendelics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.14

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.51

D;.;.

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.94

D;D;D

M_CAP

Benign

0.032

MetaRNN

Benign

0.15

T;T;T

MetaSVM

Benign

-0.47

MutationAssessor

Benign

1.6

L;.;.

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-2.6

D;D;D

REVEL

Benign

0.28

Sift

Benign

0.034

D;D;D

Sift4G

Benign

0.21

T;T;D

Polyphen

0.96

D;B;.

Vest4

0.33

MVP

0.55

MPC

0.90

ClinPred

0.10

GERP RS

5.6

Varity_R

0.45

gMVP

0.55

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over