Genetic Variant OR2G3:p.Ile214Val (chr1-247606225-A-G) – 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_001001914.1(OR2G3):c.640A>G(p.Ile214Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000144 in 1,461,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

OR2G3
NM_001001914.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0530

Variant links:

Genes affected

OR2G3 (HGNC:15008): (olfactory receptor family 2 subfamily G member 3) 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]

OR2G3 links:

ENSG00000236817 (HGNC:):

ENSG00000236817 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=0.18057346).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OR2G3	NM_001001914.1 link	c.640A>G	p.Ile214Val	missense_variant	Exon 1 of 1	ENST00000320002.3	NP_001001914.1	Q8NGZ4A0A126GVX0
LOC102724446	NR_188589.1 link	n.225+29630T>C		intron_variant	Intron 2 of 2
LOC102724446	NR_188590.1 link	n.437+29630T>C		intron_variant	Intron 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
OR2G3	ENST00000320002.3 link	c.640A>G	p.Ile214Val	missense_variant	Exon 1 of 1	6	NM_001001914.1	ENSP00000326301.2	Q8NGZ4
ENSG00000236817	ENST00000435333.5 link	n.225+29630T>C		intron_variant	Intron 2 of 2	3
ENSG00000236817	ENST00000446347.1 link	n.437+29630T>C		intron_variant	Intron 2 of 2	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251284

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135794

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:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.000111

Hom.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 06, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.640A>G (p.I214V) alteration is located in exon 1 (coding exon 1) of the OR2G3 gene. This alteration results from a A to G substitution at nucleotide position 640, causing the isoleucine (I) at amino acid position 214 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

0.17

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.65

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0049

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.54

FATHMM_MKL

Benign

0.060

LIST_S2

Benign

0.81

M_CAP

Benign

0.00064

MetaRNN

Benign

0.18

MetaSVM

Benign

-0.85

MutationAssessor

Uncertain

2.1

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.96

REVEL

Benign

0.074

Sift

Uncertain

0.013

Sift4G

Uncertain

0.020

Polyphen

1.0

Vest4

0.046

MutPred

0.58

Gain of helix (P = 0.2294);

MVP

0.27

MPC

0.13

ClinPred

0.36

GERP RS

-0.069

Varity_R

0.20

gMVP

0.036

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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