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GeneBe

7-122995186-A-G

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_016945.3(TAS2R16):c.449T>C(p.Ile150Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000353 in 1,613,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

TAS2R16
NM_016945.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.705
Variant links:
Genes affected
TAS2R16 (HGNC:14921): (taste 2 receptor member 16) This gene encodes a member of a family of candidate taste receptors that are members of the G protein-coupled receptor superfamily. These family members are specifically expressed by taste receptor cells of the tongue and palate epithelia. Each of these apparently intronless genes encodes a 7-transmembrane receptor protein, functioning as a bitter taste receptor. This gene is clustered with another 3 candidate taste receptor genes in chromosome 7 and is genetically linked to loci that influence bitter perception. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.04647711).
BS2
High AC in GnomAd at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TAS2R16NM_016945.3 linkuse as main transcriptc.449T>C p.Ile150Thr missense_variant 1/1 ENST00000249284.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TAS2R16ENST00000249284.3 linkuse as main transcriptc.449T>C p.Ile150Thr missense_variant 1/1 NM_016945.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152094
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.0000441
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000319
AC:
8
AN:
250502
Hom.:
0
AF XY:
0.0000443
AC XY:
6
AN XY:
135344
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
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:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000328
AC:
48
AN:
1461674
Hom.:
0
Cov.:
33
AF XY:
0.0000261
AC XY:
19
AN XY:
727136
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000246
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:
0.0000306
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152212
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000473
Bravo
AF:
0.0000453
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

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 GeneticsNov 19, 2022The c.449T>C (p.I150T) alteration is located in exon 1 (coding exon 1) of the TAS2R16 gene. This alteration results from a T to C substitution at nucleotide position 449, causing the isoleucine (I) at amino acid position 150 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
0.16
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.58
Cadd
Benign
4.4
Dann
Benign
0.94
DEOGEN2
Benign
0.032
T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.034
N
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.0065
T
MetaRNN
Benign
0.046
T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
1.6
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.37
T
PROVEAN
Uncertain
-3.0
D
REVEL
Benign
0.072
Sift
Uncertain
0.029
D
Sift4G
Benign
0.11
T
Polyphen
0.63
P
Vest4
0.070
MVP
0.19
MPC
0.012
ClinPred
0.18
T
GERP RS
-0.93
Varity_R
0.13
gMVP
0.032

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs201057726; hg19: chr7-122635240; API