chr1-248039007-T-C

Position:

chr1-248039007-T-C

Variant summary

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

The NM_001385855.1(OR2L2):c.740T>C(p.Val247Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000328 in 1,613,990 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 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

OR2L2
NM_001385855.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.52

Variant links:

Genes affected

OR2L2 (HGNC:8266): (olfactory receptor family 2 subfamily L 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]

OR2L2 links:

OR2L13 (HGNC:):

OR2L13 links:

Genome browser will be placed here

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=0.18103373).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
OR2L2	NM_001385855.1 linkuse as main transcript	c.740T>C	p.Val247Ala	missense_variant	3/3	ENST00000641771.1
OR2L2	NM_001004686.3 linkuse as main transcript	c.740T>C	p.Val247Ala	missense_variant	2/2
OR2L13	NM_001304535.3 linkuse as main transcript	c.-18-60351T>C		intron_variant
OR2L13	NM_175911.5 linkuse as main transcript	c.-143-59644T>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Appris
OR2L2	ENST00000641771.1 linkuse as main transcript	c.740T>C	p.Val247Ala	missense_variant	3/3	NM_001385855.1	P1
OR2L2	ENST00000366479.4 linkuse as main transcript	c.740T>C	p.Val247Ala	missense_variant	1/1		P1
OR2L2	ENST00000642011.1 linkuse as main transcript	c.740T>C	p.Val247Ala	missense_variant	2/2		P1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152120

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000131

AC:

AN:

251274

Hom.:

AF XY:

0.000110

AC XY:

AN XY:

135782

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000810

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:

0.0000352

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000301

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000671

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:

0.00000719

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152120

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74294

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000393

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000887

Hom.:

Bravo

AF:

0.000106

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000824

AC:

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 18, 2024

The c.740T>C (p.V247A) alteration is located in exon 1 (coding exon 1) of the OR2L2 gene. This alteration results from a T to C substitution at nucleotide position 740, causing the valine (V) at amino acid position 247 to be replaced by an alanine (A). 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

0.23

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.45

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.0092

T;T;T

Eigen

Benign

-0.035

Eigen_PC

Benign

-0.30

FATHMM_MKL

Benign

0.089

LIST_S2

Benign

0.52

.;.;T

M_CAP

Benign

0.0012

MetaRNN

Benign

0.18

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

3.4

M;M;M

MutationTaster

Benign

1.0

D;N

PrimateAI

Benign

0.26

PROVEAN

Uncertain

-3.1

.;.;D

REVEL

Benign

0.13

Sift

Benign

0.093

.;.;T

Sift4G

Uncertain

0.058

.;.;T

Polyphen

1.0

D;D;D

Vest4

0.38

MVP

0.24

MPC

0.12

ClinPred

0.97

GERP RS

1.9

Varity_R

0.13

gMVP

0.13

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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