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GeneBe

1-18839945-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_152232.6(TAS1R2):​c.2174G>A​(p.Arg725His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000347 in 1,613,988 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R725C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

TAS1R2
NM_152232.6 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0810
Variant links:
Genes affected
TAS1R2 (HGNC:14905): (taste 1 receptor member 2) Contributes to sweet taste receptor activity. Involved in detection of chemical stimulus involved in sensory perception of sweet taste and positive regulation of cytokinesis. Part of sweet taste receptor complex. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10048357).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TAS1R2NM_152232.6 linkuse as main transcriptc.2174G>A p.Arg725His missense_variant 6/6 ENST00000375371.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TAS1R2ENST00000375371.4 linkuse as main transcriptc.2174G>A p.Arg725His missense_variant 6/62 NM_152232.6 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152096
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:
0.000385
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000477
AC:
12
AN:
251444
Hom.:
0
AF XY:
0.0000662
AC XY:
9
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000356
AC:
52
AN:
1461892
Hom.:
0
Cov.:
38
AF XY:
0.0000358
AC XY:
26
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000302
Gnomad4 SAS exome
AF:
0.000139
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000198
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152096
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74300
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.0000494
AC:
6
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesDec 11, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
12
DANN
Uncertain
0.99
DEOGEN2
Benign
0.13
T
Eigen
Benign
-0.60
Eigen_PC
Benign
-0.58
FATHMM_MKL
Benign
0.086
N
LIST_S2
Benign
0.79
T
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-0.52
T
MutationAssessor
Benign
1.4
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.18
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.13
Sift
Benign
0.12
T
Sift4G
Benign
0.17
T
Polyphen
0.13
B
Vest4
0.022
MutPred
0.63
Loss of catalytic residue at R725 (P = 0.0744);
MVP
0.79
MPC
0.18
ClinPred
0.025
T
GERP RS
3.0
Varity_R
0.096
gMVP
0.15

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: rs768315702; hg19: chr1-19166439; API