chr7-81745087-C-T

Variant names:

Variant summary

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

The NM_000601.6(HGF):c.659G>A(p.Arg220Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000923 in 1,613,630 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000097 ( 1 hom. )

Consequence

HGF
NM_000601.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 6.96

Variant links:

Genes affected

HGF (HGNC:4893): (hepatocyte growth factor) This gene encodes a protein that binds to the hepatocyte growth factor receptor to regulate cell growth, cell motility and morphogenesis in numerous cell and tissue types. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate alpha and beta chains, which form the mature heterodimer. This protein is secreted by mesenchymal cells and acts as a multi-functional cytokine on cells of mainly epithelial origin. This protein also plays a role in angiogenesis, tumorogenesis, and tissue regeneration. Although the encoded protein is a member of the peptidase S1 family of serine proteases, it lacks peptidase activity. Mutations in this gene are associated with nonsyndromic hearing loss. [provided by RefSeq, Nov 2015]

HGF links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 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
HGF	NM_000601.6 link	c.659G>A	p.Arg220Gln	missense_variant	Exon 6 of 18	ENST00000222390.11	NP_000592.3	P14210-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
HGF	ENST00000222390.11 link	c.659G>A	p.Arg220Gln	missense_variant	Exon 6 of 18	1	NM_000601.6	ENSP00000222390.5	P14210-1
HGF	ENST00000457544.7 link	c.644G>A	p.Arg215Gln	missense_variant	Exon 6 of 18	1		ENSP00000391238.2	P14210-3
HGF	ENST00000444829.7 link	c.659G>A	p.Arg220Gln	missense_variant	Exon 6 of 8	1		ENSP00000389854.2	P14210-2
HGF	ENST00000453411.6 link	c.644G>A	p.Arg215Gln	missense_variant	Exon 6 of 8	1		ENSP00000408270.1	P14210-5

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000478

AC:

AN:

251222

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135772

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000289

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:

0.0000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000972

AC:

142

AN:

1461506

Hom.:

Cov.:

AF XY:

0.0000880

AC XY:

AN XY:

727068

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000121

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000158

Hom.:

Bravo

AF:

0.0000491

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:2

Jun 11, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.659G>A (p.R220Q) alteration is located in exon 6 (coding exon 6) of the HGF gene. This alteration results from a G to A substitution at nucleotide position 659, causing the arginine (R) at amino acid position 220 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Jan 25, 2019

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Arg220Gln variant in HGF has been previously reported by our laboratory in 1 individual with hearing loss, and it has also been identified in 0.008% (11/128996) of European chromosomes by gnomAD (http://gnomad.broadinstitute.org). Computational prediction tools and conservation analyses do not provide strong support for or against an impact to the protein. In summary, the clinical significance of the Arg220Gln variant is uncertain. ACMG/AMP criteria applied: PM2_Supporting. -

not provided

Uncertain:1

Oct 22, 2021

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Pathogenic

0.16

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.48

T;T;.;.;.

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.93

.;D;D;D;D

M_CAP

Benign

0.083

MetaRNN

Uncertain

0.50

T;T;T;T;T

MetaSVM

Uncertain

0.13

MutationAssessor

Pathogenic

3.0

M;M;.;M;.

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-2.2

.;N;N;N;N

REVEL

Uncertain

0.57

Sift

Benign

0.086

.;T;T;D;D

Sift4G

Uncertain

0.013

.;D;D;D;D

Polyphen

0.99

D;D;D;D;P

Vest4

0.65, 0.68, 0.81, 0.80

MVP

0.85

MPC

1.4

ClinPred

0.41

GERP RS

4.7

Varity_R

0.48

gMVP

0.88

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