7-116771512-T-G

Position:

• chr7-116771512-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000245.4(MET):​c.2745T>G​(p.Ile915Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: MET NM_000245.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.65

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19897473).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MET	NM_000245.4	c.2745T>G	p.Ile915Met	missense_variant	13/21	ENST00000397752.8
MET	NM_001127500.3	c.2799T>G	p.Ile933Met	missense_variant	13/21
MET	NM_001324402.2	c.1455T>G	p.Ile485Met	missense_variant	12/20
MET	XM_011516223.2	c.2802T>G	p.Ile934Met	missense_variant	14/22

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MET	ENST00000397752.8	c.2745T>G	p.Ile915Met	missense_variant	13/21	1	NM_000245.4	P3
MET	ENST00000318493.11	c.2799T>G	p.Ile933Met	missense_variant	13/21	1		A2
MET	ENST00000436117.3	c.*350T>G		3_prime_UTR_variant, NMD_transcript_variant	12/20	1
MET	ENST00000454623.1	c.141T>G	p.Ile47Met	missense_variant	2/3	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Renal cell carcinoma Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 28, 2021

This sequence change replaces isoleucine with methionine at codon 933 of the MET protein (p.Ile933Met). The isoleucine residue is weakly conserved and there is a small physicochemical difference between isoleucine and methionine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected 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: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.084
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.41
CADD	Benign	18
DANN	Benign	0.94
DEOGEN2	Benign	0.31	T;.;.
Eigen	Benign	-0.24
Eigen_PC	Benign	-0.056
FATHMM_MKL	Uncertain	0.78	D
LIST_S2	Benign	0.81	T;T;T
M_CAP	Benign	0.023	T
MetaRNN	Benign	0.20	T;T;T
MetaSVM	Benign	-0.90	T
MutationAssessor	Benign	0.0	N;.;.
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-0.25	N;N;N
REVEL	Benign	0.085
Sift	Benign	0.21	T;T;D
Sift4G	Benign	0.12	T;T;D
Polyphen		0.11	B;B;.
Vest4		0.14
MutPred		0.63		Gain of sheet (P = 0.0266);.;.;
MVP		0.40
MPC		0.54
ClinPred		0.25	T
GERP RS		3.5
Varity_R		0.055
gMVP		0.54

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

Other links and lift over

dbSNP: rs1554398244; hg19: chr7-116411566; COSMIC: COSV105896427; COSMIC: COSV105896427;