7-144074693-T-G

Position:

chr7-144074693-T-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001386096.1(OR2A25):c.474T>G(p.His158Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000595 in 1,614,142 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00021 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000044 ( 1 hom. )

Consequence

OR2A25
NM_001386096.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.57

Variant links:

Genes affected

OR2A25 (HGNC:19562): (olfactory receptor family 2 subfamily A member 25) 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]

OR2A25 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05084604).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OR2A25	NM_001386096.1 linkuse as main transcript	c.474T>G	p.His158Gln	missense_variant	2/2	ENST00000641663.1
OR2A25	NM_001004488.2 linkuse as main transcript	c.474T>G	p.His158Gln	missense_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Appris
OR2A25	ENST00000641663.1 linkuse as main transcript	c.474T>G	p.His158Gln	missense_variant	2/2	NM_001386096.1	P1
OR2A25	ENST00000408898.2 linkuse as main transcript	c.474T>G	p.His158Gln	missense_variant	1/1		P1
OR2A25	ENST00000641441.1 linkuse as main transcript	c.474T>G	p.His158Gln	missense_variant	2/2		P1

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000579

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000640

AC:

AN:

250160

Hom.:

AF XY:

0.0000590

AC XY:

AN XY:

135684

show subpopulations

Gnomad AFR exome

AF:

0.000773

Gnomad AMR exome

AF:

0.0000289

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000438

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.0000550

AC XY:

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.00111

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000210

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.000626

Gnomad4 AMR

AF:

0.000262

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:

0.000473

Alfa

AF:

0.0000953

Hom.:

Bravo

AF:

0.000238

ESP6500AA

AF:

0.000463

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000107

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

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 16, 2021

The c.474T>G (p.H158Q) alteration is located in exon 1 (coding exon 1) of the OR2A25 gene. This alteration results from a T to G substitution at nucleotide position 474, causing the histidine (H) at amino acid position 158 to be replaced by a glutamine (Q). 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

0.24

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.64

CADD

Benign

DANN

Benign

0.81

DEOGEN2

Benign

0.017

T;T;T

Eigen

Benign

-0.44

Eigen_PC

Benign

-0.62

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.60

.;.;T

M_CAP

Benign

0.0052

MetaRNN

Benign

0.051

T;T;T

MetaSVM

Benign

-0.82

MutationAssessor

Benign

0.81

L;L;L

MutationTaster

Benign

1.0

PrimateAI

Benign

0.26

PROVEAN

Pathogenic

-4.6

.;.;D

REVEL

Benign

0.031

Sift

Benign

0.28

.;.;T

Sift4G

Benign

0.33

.;.;T

Polyphen

1.0

D;D;D

Vest4

0.17

MutPred

0.43

Gain of catalytic residue at H158 (P = 0.1189);Gain of catalytic residue at H158 (P = 0.1189);Gain of catalytic residue at H158 (P = 0.1189);

MVP

0.21

MPC

0.087

ClinPred

0.11

GERP RS

2.1

Varity_R

0.24

gMVP

0.29

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