Variant 1-248453336-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001004136.2(OR2T2):c.539G>T(p.Cys180Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 27)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

OR2T2
NM_001004136.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.08

Variant links:

Genes affected

OR2T2 (HGNC:14725): (olfactory receptor family 2 subfamily T member 2) 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]

OR2T2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.864

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OR2T2	NM_001004136.2 linkuse as main transcript	c.539G>T	p.Cys180Phe	missense_variant	4/4	ENST00000641925.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OR2T2	ENST00000641925.2 linkuse as main transcript	c.539G>T	p.Cys180Phe	missense_variant	4/4		NM_001004136.2	P1
OR2T2	ENST00000642130.1 linkuse as main transcript	c.539G>T	p.Cys180Phe	missense_variant	3/3			P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000820

AC:

AN:

244044

Hom.:

AF XY:

0.00000757

AC XY:

AN XY:

132132

show subpopulations

Gnomad AFR exome

AF:

0.000128

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000141

AC:

AN:

1423256

Hom.:

Cov.:

AF XY:

0.00000141

AC XY:

AN XY:

709530

show subpopulations

Gnomad4 AFR exome

AF:

0.0000610

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

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

Jun 19, 2024

The c.539G>T (p.C180F) alteration is located in exon 1 (coding exon 1) of the OR2T2 gene. This alteration results from a G to T substitution at nucleotide position 539, causing the cysteine (C) at amino acid position 180 to be replaced by a phenylalanine (F). 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

Pathogenic

0.77

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.077

T;T;T

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Pathogenic

0.98

M_CAP

Benign

0.015

MetaRNN

Pathogenic

0.86

D;D;D

MetaSVM

Uncertain

0.53

MutationAssessor

Pathogenic

3.8

H;H;H

MutationTaster

Benign

1.0

PrimateAI

Benign

0.25

PROVEAN

Pathogenic

-11

.;.;D

REVEL

Uncertain

0.48

Sift

Pathogenic

0.0

.;.;D

Sift4G

Pathogenic

0.0

.;.;D

Polyphen

1.0

D;D;D

Vest4

0.81

MutPred

0.70

Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);

MVP

0.83

MPC

3.5

ClinPred

1.0

GERP RS

3.6

Varity_R

0.95

gMVP

0.39

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