Variant 19-9114935-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001005192.2(OR7G1):c.829A>T(p.Met277Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00025 in 1,613,250 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M277V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

OR7G1
NM_001005192.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.613

Variant links:

Genes affected

OR7G1 (HGNC:8465): (olfactory receptor family 7 subfamily G member 1) Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) arising from single coding-exon genes. Olfactory receptors share a 7-transmembrane domain structure with many neurotransmitter and hormone receptors and are responsible for the recognition and G protein-mediated transduction of odorant signals. The olfactory receptor gene family is the largest in the genome. The nomenclature assigned to the olfactory receptor genes and proteins for this organism is independent of other organisms. [provided by RefSeq, Jul 2008]

OR7G1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.031161815).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OR7G1	NM_001005192.2 linkuse as main transcript	c.829A>T	p.Met277Leu	missense_variant	1/1	ENST00000541538.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OR7G1	ENST00000541538.1 linkuse as main transcript	c.829A>T	p.Met277Leu	missense_variant	1/1		NM_001005192.2	P1

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

152088

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000456

Gnomad OTH

AF:

0.000480

GnomAD3 exomes

AF:

0.000350

AC:

AN:

251464

Hom.:

AF XY:

0.000280

AC XY:

AN XY:

135902

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.000298

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000647

Gnomad NFE exome

AF:

0.000571

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000252

AC:

368

AN:

1461162

Hom.:

Cov.:

AF XY:

0.000239

AC XY:

174

AN XY:

726936

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.000498

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000599

Gnomad4 NFE exome

AF:

0.000271

Gnomad4 OTH exome

AF:

0.000348

GnomAD4 genome

AF:

0.000237

AC:

AN:

152088

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74276

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000189

Gnomad4 NFE

AF:

0.000456

Gnomad4 OTH

AF:

0.000480

Alfa

AF:

0.000325

Hom.:

Bravo

AF:

0.000227

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000412

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 21, 2024

The c.829A>T (p.M277L) alteration is located in exon 1 (coding exon 1) of the OR7G1 gene. This alteration results from a A to T substitution at nucleotide position 829, causing the methionine (M) at amino acid position 277 to be replaced by a leucine (L). 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

0.11

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.73

CADD

Benign

5.1

DANN

Benign

0.59

DEOGEN2

Benign

0.0080

Eigen

Benign

-0.82

Eigen_PC

Benign

-0.84

FATHMM_MKL

Benign

0.052

LIST_S2

Benign

0.72

M_CAP

Benign

0.0015

MetaRNN

Benign

0.031

MetaSVM

Benign

-0.90

MutationAssessor

Benign

0.88

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.22

PROVEAN

Uncertain

-2.4

REVEL

Benign

0.036

Sift

Benign

0.060

Sift4G

Uncertain

0.034

Polyphen

0.0080

Vest4

0.14

MutPred

0.59

Loss of catalytic residue at M277 (P = 0.077);

MVP

0.22

MPC

0.035

ClinPred

0.030

GERP RS

-0.12

Varity_R

0.13

gMVP

0.047

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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