Variant 1-247921246-C-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_001005522.2(OR2T8):c.229C>T(p.Pro77Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000412 in 1,456,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 17)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

OR2T8
NM_001005522.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.92

Variant links:

Genes affected

OR2T8 (HGNC:15020): (olfactory receptor family 2 subfamily T member 8) 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]

OR2T8 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, 0.923

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OR2T8	NM_001005522.2 linkuse as main transcript	c.229C>T	p.Pro77Ser	missense_variant	2/2	ENST00000641945.2	NP_001005522.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OR2T8	ENST00000641945.2 linkuse as main transcript	c.229C>T	p.Pro77Ser	missense_variant	2/2		NM_001005522.2	ENSP00000493286	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249532

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135166

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000887

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000412

AC:

AN:

1456702

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

724862

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000541

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Aug 02, 2021

The c.229C>T (p.P77S) alteration is located in exon 1 (coding exon 1) of the OR2T8 gene. This alteration results from a C to T substitution at nucleotide position 229, causing the proline (P) at amino acid position 77 to be replaced by a serine (S). 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

Uncertain

0.46

BayesDel_addAF

Uncertain

0.049

BayesDel_noAF

Benign

-0.17

CADD

Benign

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.039

T;T

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.85

.;T

M_CAP

Benign

0.0014

MetaRNN

Pathogenic

0.92

D;D

MetaSVM

Benign

-0.99

MutationAssessor

Pathogenic

3.6

H;H

MutationTaster

Benign

1.0

PrimateAI

Benign

0.31

PROVEAN

Pathogenic

-7.5

.;D

REVEL

Benign

0.26

Sift

Uncertain

0.0030

.;D

Sift4G

Pathogenic

0.0010

.;D

Polyphen

1.0

D;D

Vest4

0.66

MutPred

0.74

Loss of glycosylation at T74 (P = 0.0558);Loss of glycosylation at T74 (P = 0.0558);

MVP

0.69

ClinPred

1.0

GERP RS

3.8

Varity_R

0.81

gMVP

0.22

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