ENST00000573901.3:c.868C>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The ENST00000573901.3(OR3A2):​c.868C>T​(p.Pro290Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,872 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

OR3A2
ENST00000573901.3 missense

Scores

10
4
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.57

Publications

1 publications found
Variant links:
Genes affected
OR3A2 (HGNC:8283): (olfactory receptor family 3 subfamily A 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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.91

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OR3A2NM_002551.5 linkc.868C>T p.Pro290Ser missense_variant Exon 5 of 5 NP_002542.4 P47893A0A126GVQ3
OR3A2XM_047436157.1 linkc.892C>T p.Pro298Ser missense_variant Exon 7 of 7 XP_047292113.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OR3A2ENST00000573901.3 linkc.868C>T p.Pro290Ser missense_variant Exon 5 of 5 3 ENSP00000516654.1 A0A286YFF0
OR3A2ENST00000641164.1 linkc.868C>T p.Pro290Ser missense_variant Exon 1 of 1 ENSP00000493039.1 A0A286YFF0
OR3A2ENST00000642052.1 linkc.868C>T p.Pro290Ser missense_variant Exon 2 of 2 ENSP00000493441.1 A0A286YFF0

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000400
AC:
1
AN:
250128
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.00000137
AC:
2
AN:
1460872
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
726500
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33462
American (AMR)
AF:
0.0000224
AC:
1
AN:
44704
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39680
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111138
Other (OTH)
AF:
0.00
AC:
0
AN:
60320
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
Heterozygous variant carriers
0
0
1
1
2
2
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
Cov.:
31

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Oct 04, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.886C>T (p.P296S) alteration is located in exon 1 (coding exon 1) of the OR3A2 gene. This alteration results from a C to T substitution at nucleotide position 886, causing the proline (P) at amino acid position 296 to be replaced by a serine (S). 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
0.35
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Pathogenic
0.14
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.11
.;.;T
Eigen
Pathogenic
0.95
Eigen_PC
Pathogenic
0.86
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Benign
0.77
.;T;T
M_CAP
Benign
0.054
D
MetaRNN
Pathogenic
0.91
D;D;D
MetaSVM
Uncertain
0.26
D
MutationAssessor
Pathogenic
3.4
.;.;M
PhyloP100
9.6
PrimateAI
Benign
0.27
T
PROVEAN
Pathogenic
-6.6
.;.;D
REVEL
Pathogenic
0.65
Sift
Pathogenic
0.0
.;.;D
Sift4G
Uncertain
0.0020
.;.;D
Polyphen
1.0
.;.;D
Vest4
0.80
MutPred
0.73
.;.;Loss of loop (P = 0.2237);
MVP
0.72
MPC
1.8
ClinPred
1.0
D
GERP RS
4.9
Varity_R
0.91
gMVP
0.36

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs1341575857; hg19: chr17-3181344; API