Genetic Variant GNG7:p.Ile19Val (chr19-2520634-T-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_052847.3(GNG7):c.55A>G(p.Ile19Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000747 in 1,551,956 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000077 ( 0 hom. )

Consequence

GNG7
NM_052847.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.71

Variant links:

Genes affected

GNG7 (HGNC:4410): (G protein subunit gamma 7) Predicted to enable G-protein beta-subunit binding activity. Predicted to be involved in G protein-coupled receptor signaling pathway and regulation of adenylate cyclase activity. Predicted to act upstream of or within behavioral fear response; locomotory behavior; and receptor guanylyl cyclase signaling pathway. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

GNG7 links:

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ACMG classification

Classification made for transcript

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=0.20221606).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GNG7	NM_052847.3 link	c.55A>G	p.Ile19Val	missense_variant	Exon 4 of 5	ENST00000382159.8	NP_443079.1	O60262
GNG7	XM_047438629.1 link	c.55A>G	p.Ile19Val	missense_variant	Exon 5 of 6		XP_047294585.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GNG7	ENST00000382159.8 link	c.55A>G	p.Ile19Val	missense_variant	Exon 4 of 5	1	NM_052847.3	ENSP00000371594.2		O60262
GNG7	ENST00000587867.1 link	n.55A>G		non_coding_transcript_exon_variant	Exon 4 of 6	5		ENSP00000468650.1		K7ESC6

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000122

AC:

AN:

163856

Hom.:

AF XY:

0.0000231

AC XY:

AN XY:

86438

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000311

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000772

AC:

108

AN:

1399738

Hom.:

Cov.:

AF XY:

0.0000926

AC XY:

AN XY:

691084

show subpopulations

Gnomad4 AFR exome

AF:

0.0000311

Gnomad4 AMR exome

AF:

0.00

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:

0.0000956

Gnomad4 OTH exome

AF:

0.0000690

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.0000655

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

Bravo

AF:

0.0000567

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 16, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.55A>G (p.I19V) alteration is located in exon 3 (coding exon 1) of the GNG7 gene. This alteration results from a A to G substitution at nucleotide position 55, causing the isoleucine (I) at amino acid position 19 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.067

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Benign

0.78

DEOGEN2

Benign

0.083

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.65

FATHMM_MKL

Benign

0.68

LIST_S2

Benign

0.81

M_CAP

Benign

0.0038

MetaRNN

Benign

0.20

MetaSVM

Benign

-1.1

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.47

REVEL

Benign

0.039

Sift

Benign

0.14

Sift4G

Benign

0.64

Polyphen

0.0

Vest4

0.16

MVP

0.29

MPC

0.22

ClinPred

0.15

GERP RS

0.89

Varity_R

0.041

gMVP

0.59

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