1-248453312-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_001004136.2(OR2T2):c.515C>T(p.Ser172Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,428,968 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 27)

Exomes 𝑓: 0.000011 ( 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: 0.346

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant where missense usually causes diseases, OR2T2

BP4

Computational evidence support a benign effect (MetaRNN=0.3592289).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OR2T2	NM_001004136.2 linkuse as main transcript	c.515C>T	p.Ser172Phe	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.515C>T	p.Ser172Phe	missense_variant	4/4		NM_001004136.2	P1
OR2T2	ENST00000642130.1 linkuse as main transcript	c.515C>T	p.Ser172Phe	missense_variant	3/3			P1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

148508

Hom.:

Cov.:

FAILED QC

Gnomad AFR

AF:

0.0000501

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

GnomAD3 exomes

AF:

0.00000812

AC:

AN:

246158

Hom.:

AF XY:

0.00000750

AC XY:

AN XY:

133376

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000112

AC:

AN:

1428968

Hom.:

Cov.:

AF XY:

0.0000126

AC XY:

AN XY:

712178

show subpopulations

Gnomad4 AFR exome

AF:

0.000275

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000256

Gnomad4 SAS exome

AF:

0.0000119

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.21e-7

Gnomad4 OTH exome

AF:

0.0000169

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000202

AC:

AN:

148618

Hom.:

Cov.:

AF XY:

0.0000276

AC XY:

AN XY:

72408

show subpopulations

Gnomad4 AFR

AF:

0.0000749

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 submitter

clinical testing

Ambry Genetics

Sep 27, 2021

The c.515C>T (p.S172F) alteration is located in exon 1 (coding exon 1) of the OR2T2 gene. This alteration results from a C to T substitution at nucleotide position 515, causing the serine (S) at amino acid position 172 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

Benign

0.27

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.48

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.033

T;T;T

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.38

FATHMM_MKL

Benign

0.11

M_CAP

Benign

0.012

MetaRNN

Benign

0.36

T;T;T

MetaSVM

Benign

-0.83

MutationAssessor

Uncertain

2.6

M;M;M

MutationTaster

Benign

1.0

PrimateAI

Benign

0.23

Polyphen

0.99

D;D;D

Vest4

0.43

MutPred

0.54

Loss of relative solvent accessibility (P = 0.0981);Loss of relative solvent accessibility (P = 0.0981);Loss of relative solvent accessibility (P = 0.0981);

MVP

0.58

MPC

2.8

ClinPred

0.94

GERP RS

2.8

Varity_R

0.28

gMVP

0.23

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