12-10809727-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_023917.2(TAS2R9):​c.349C>A​(p.Pro117Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,376 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

TAS2R9
NM_023917.2 missense

Scores

1
2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.65
Variant links:
Genes affected
TAS2R9 (HGNC:14917): (taste 2 receptor member 9) This gene product belongs to the family of candidate taste receptors that are members of the G-protein-coupled receptor superfamily. These proteins are specifically expressed in the taste receptor cells of the tongue and palate epithelia. They are organized in the genome in clusters and are genetically linked to loci that influence bitter perception in mice and humans. In functional expression studies, they respond to bitter tastants. This gene maps to the taste receptor gene cluster on chromosome 12p13. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TAS2R9NM_023917.2 linkuse as main transcriptc.349C>A p.Pro117Thr missense_variant 1/1 ENST00000240691.4 NP_076406.1 Q9NYW1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TAS2R9ENST00000240691.4 linkuse as main transcriptc.349C>A p.Pro117Thr missense_variant 1/16 NM_023917.2 ENSP00000240691.2 Q9NYW1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151994
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250372
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135286
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000291
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1461382
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
726976
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151994
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74216
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

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 submitterclinical testingAmbry GeneticsApr 12, 2022The c.349C>A (p.P117T) alteration is located in exon 1 (coding exon 1) of the TAS2R9 gene. This alteration results from a C to A substitution at nucleotide position 349, causing the proline (P) at amino acid position 117 to be replaced by a threonine (T). 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
0.18
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
15
DANN
Benign
0.97
DEOGEN2
Benign
0.019
T
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.65
FATHMM_MKL
Benign
0.026
N
M_CAP
Benign
0.0029
T
MetaRNN
Uncertain
0.44
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Uncertain
2.2
M
PrimateAI
Benign
0.22
T
PROVEAN
Pathogenic
-5.1
D
REVEL
Benign
0.13
Sift
Benign
0.25
T
Sift4G
Benign
0.092
T
Polyphen
1.0
D
Vest4
0.10
MutPred
0.79
Gain of MoRF binding (P = 0.0365);
MVP
0.11
MPC
0.051
ClinPred
0.78
D
GERP RS
-1.0
Varity_R
0.13
gMVP
0.058

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1177718424; hg19: chr12-10962326; API