1-247606073-C-T

Variant summary

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

The NM_001001914.1(OR2G3):​c.488C>T​(p.Thr163Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,168 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: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

OR2G3
NM_001001914.1 missense

Scores

1
1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.855
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]

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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=0.14205182).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OR2G3NM_001001914.1 linkuse as main transcriptc.488C>T p.Thr163Ile missense_variant 1/1 ENST00000320002.3 NP_001001914.1 Q8NGZ4A0A126GVX0
LOC102724446NR_188589.1 linkuse as main transcriptn.225+29782G>A intron_variant
LOC102724446NR_188590.1 linkuse as main transcriptn.437+29782G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OR2G3ENST00000320002.3 linkuse as main transcriptc.488C>T p.Thr163Ile missense_variant 1/16 NM_001001914.1 ENSP00000326301.2 Q8NGZ4
ENSG00000236817ENST00000435333.5 linkuse as main transcriptn.225+29782G>A intron_variant 3
ENSG00000236817ENST00000446347.1 linkuse as main transcriptn.437+29782G>A intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152168
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
34
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152168
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Gnomad4 OTH
AF:
0.00

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 submitterclinical testingAmbry GeneticsMar 19, 2024The c.488C>T (p.T163I) alteration is located in exon 1 (coding exon 1) of the OR2G3 gene. This alteration results from a C to T substitution at nucleotide position 488, causing the threonine (T) at amino acid position 163 to be replaced by an isoleucine (I). 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
0.14
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0082
T
Eigen
Benign
-0.47
Eigen_PC
Benign
-0.69
FATHMM_MKL
Benign
0.0069
N
LIST_S2
Benign
0.65
T
M_CAP
Benign
0.0012
T
MetaRNN
Benign
0.14
T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
1.6
L
PrimateAI
Benign
0.29
T
PROVEAN
Pathogenic
-5.6
D
REVEL
Benign
0.046
Sift
Benign
0.073
T
Sift4G
Benign
0.12
T
Polyphen
0.97
D
Vest4
0.037
MutPred
0.46
Gain of stability (P = 0.1136);
MVP
0.33
MPC
0.36
ClinPred
0.92
D
GERP RS
2.7
Varity_R
0.20
gMVP
0.18

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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.

Other links and lift over

dbSNP: rs769953233; hg19: chr1-247769375; API