rs752922499

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_001003443.3(OR56A3):​c.743A>G​(p.His248Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000706 in 1,614,094 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000073 ( 2 hom. )

Consequence

OR56A3
NM_001003443.3 missense

Scores

4
8
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.11

Publications

1 publications found
Variant links:
Genes affected
OR56A3 (HGNC:14786): (olfactory receptor family 56 subfamily A member 3) 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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.841
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OR56A3NM_001003443.3 linkc.743A>G p.His248Arg missense_variant Exon 3 of 3 ENST00000641160.1 NP_001003443.2 Q8NH54A0A126GWL6
OR56A3XM_047426926.1 linkc.743A>G p.His248Arg missense_variant Exon 3 of 6 XP_047282882.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OR56A3ENST00000641160.1 linkc.743A>G p.His248Arg missense_variant Exon 3 of 3 NM_001003443.3 ENSP00000493059.1 Q8NH54
OR56A3ENST00000641905.1 linkc.743A>G p.His248Arg missense_variant Exon 4 of 4 ENSP00000493319.1 Q8NH54
OR56A3ENST00000641878.1 linkn.402-598A>G intron_variant Intron 2 of 2

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152204
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00145
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000124
AC:
31
AN:
250150
AF XY:
0.000199
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000732
AC:
107
AN:
1461890
Hom.:
2
Cov.:
33
AF XY:
0.000105
AC XY:
76
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00122
AC:
105
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112010
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
8
17
25
34
42
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.0000460
AC:
7
AN:
152204
Hom.:
0
Cov.:
33
AF XY:
0.0000673
AC XY:
5
AN XY:
74346
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41460
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00145
AC:
7
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.554
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

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:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.000132
AC:
16
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 20, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.743A>G (p.H248R) alteration is located in exon 1 (coding exon 1) of the OR56A3 gene. This alteration results from a A to G substitution at nucleotide position 743, causing the histidine (H) at amino acid position 248 to be replaced by an arginine (R). 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
0.53
BayesDel_addAF
Benign
-0.059
T
BayesDel_noAF
Uncertain
0.090
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T;T;T
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Benign
0.81
.;.;T
M_CAP
Benign
0.0031
T
MetaRNN
Pathogenic
0.84
D;D;D
MetaSVM
Benign
-1.0
T
MutationAssessor
Pathogenic
4.1
H;H;H
PhyloP100
9.1
PrimateAI
Benign
0.33
T
PROVEAN
Pathogenic
-7.9
.;.;D
REVEL
Uncertain
0.55
Sift
Uncertain
0.010
.;.;D
Sift4G
Uncertain
0.013
.;.;D
Polyphen
0.35
B;B;B
Vest4
0.96
MutPred
0.86
Loss of catalytic residue at F249 (P = 0.1604);Loss of catalytic residue at F249 (P = 0.1604);Loss of catalytic residue at F249 (P = 0.1604);
MVP
0.78
MPC
0.24
ClinPred
0.99
D
GERP RS
5.1
Varity_R
0.94
gMVP
0.54
Mutation Taster
=64/36
polymorphism

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

Other links and lift over

dbSNP: rs752922499; hg19: chr11-5969319; API