chr1-248039045-C-T

Position:

chr1-248039045-C-T

Variant summary

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

The NM_001385855.1(OR2L2):c.778C>T(p.Arg260Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000128 in 1,614,070 control chromosomes in the GnomAD database, including 1 homozygotes. 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 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

OR2L2
NM_001385855.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.26

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 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=0.04867083).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
OR2L2	NM_001385855.1 linkuse as main transcript	c.778C>T	p.Arg260Cys	missense_variant	3/3	ENST00000641771.1
OR2L2	NM_001004686.3 linkuse as main transcript	c.778C>T	p.Arg260Cys	missense_variant	2/2
OR2L13	NM_001304535.3 linkuse as main transcript	c.-18-60313C>T		intron_variant
OR2L13	NM_175911.5 linkuse as main transcript	c.-143-59606C>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Appris
OR2L2	ENST00000641771.1 linkuse as main transcript	c.778C>T	p.Arg260Cys	missense_variant	3/3	NM_001385855.1	P1
OR2L2	ENST00000366479.4 linkuse as main transcript	c.778C>T	p.Arg260Cys	missense_variant	1/1		P1
OR2L2	ENST00000642011.1 linkuse as main transcript	c.778C>T	p.Arg260Cys	missense_variant	2/2		P1

Frequencies

GnomAD3 genomes

AF:

0.000224

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000590

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000219

AC:

AN:

251424

Hom.:

AF XY:

0.000199

AC XY:

AN XY:

135874

show subpopulations

Gnomad AFR exome

AF:

0.000246

Gnomad AMR exome

AF:

0.000491

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000118

AC:

172

AN:

1461858

Hom.:

Cov.:

AF XY:

0.000122

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.000514

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000649

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000665

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.000230

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74422

show subpopulations

Gnomad4 AFR

AF:

0.000289

Gnomad4 AMR

AF:

0.000589

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000622

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.000212

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000231

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000119

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

May 11, 2022

The c.778C>T (p.R260C) alteration is located in exon 1 (coding exon 1) of the OR2L2 gene. This alteration results from a C to T substitution at nucleotide position 778, causing the arginine (R) at amino acid position 260 to be replaced by a cysteine (C). 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

0.11

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.59

CADD

Benign

DANN

Benign

0.84

DEOGEN2

Benign

0.0077

T;T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.0052

LIST_S2

Benign

0.023

.;.;T

M_CAP

Benign

0.0010

MetaRNN

Benign

0.049

T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Uncertain

2.2

M;M;M

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.24

PROVEAN

Uncertain

-3.3

.;.;D

REVEL

Benign

0.0090

Sift

Benign

0.14

.;.;T

Sift4G

Benign

0.063

.;.;T

Polyphen

0.067

B;B;B

Vest4

0.24

MVP

0.15

MPC

0.017

ClinPred

0.023

GERP RS

-3.0

Varity_R

0.12

gMVP

0.21

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

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