rs757342704

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001005328.2(OR2A7):​c.743G>T​(p.Gly248Val) 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 1,613,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 22)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

OR2A7
NM_001005328.2 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.666

Publications

1 publications found
Variant links:
Genes affected
OR2A7 (HGNC:8234): (olfactory receptor family 2 subfamily A member 7) 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]
ARHGEF35-AS1 (HGNC:41292): (ARHGEF35 antisense RNA 1)
OR2A1-AS1 (HGNC:49168): (OR2A1 antisense RNA 1)
ARHGEF34P (HGNC:38086): (Rho guanine nucleotide exchange factor 34, pseudogene)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1307289).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001005328.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OR2A7
NM_001005328.2
MANE Select
c.743G>Tp.Gly248Val
missense
Exon 2 of 2NP_001005328.1Q96R45
ARHGEF35-AS1
NR_126022.1
n.494-21586C>A
intron
N/A
OR2A1-AS1
NR_126023.1
n.608-19143G>T
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OR2A7
ENST00000641841.1
MANE Select
c.743G>Tp.Gly248Val
missense
Exon 2 of 2ENSP00000493320.1Q96R45
OR2A7
ENST00000493325.1
TSL:6
c.743G>Tp.Gly248Val
missense
Exon 1 of 1ENSP00000420502.1Q96R45
ARHGEF35-AS1
ENST00000460955.5
TSL:4
n.494-21586C>A
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152080
Hom.:
0
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000659
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251354
AF XY:
0.00000736
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000889
AC:
13
AN:
1461532
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
727074
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44568
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26094
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86238
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000108
AC:
12
AN:
1111902
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60382
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000145736), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.387
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152080
Hom.:
0
Cov.:
22
AF XY:
0.0000404
AC XY:
3
AN XY:
74278
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41442
American (AMR)
AF:
0.0000659
AC:
1
AN:
15182
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
312
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000000223952), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.315
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000301
Hom.:
0
ExAC
AF:
0.0000247
AC:
3

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.094
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
21
DANN
Benign
0.59
DEOGEN2
Benign
0.018
T
Eigen
Benign
-0.82
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.027
N
M_CAP
Benign
0.0073
T
MetaRNN
Benign
0.13
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.14
N
PhyloP100
-0.67
PrimateAI
Benign
0.29
T
PROVEAN
Pathogenic
-5.2
D
REVEL
Benign
0.069
Sift
Benign
0.14
T
Sift4G
Benign
0.56
T
Polyphen
0.37
B
Vest4
0.23
MutPred
0.47
Loss of catalytic residue at L249 (P = 0.1248)
MVP
0.15
ClinPred
0.16
T
GERP RS
2.3
Varity_R
0.37
gMVP
0.069
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs757342704; hg19: chr7-143955979; API