Variant chr12-10806064-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_023918.3(TAS2R8):c.917C>T(p.Ala306Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000695 in 1,438,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

TAS2R8
NM_023918.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.249

Variant links:

Genes affected

TAS2R8 (HGNC:14915): (taste 2 receptor member 8) 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]

TAS2R8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06742802).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TAS2R8	NM_023918.3 linkuse as main transcript	c.917C>T	p.Ala306Val	missense_variant	1/1	ENST00000240615.3	NP_076407.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TAS2R8	ENST00000240615.3 linkuse as main transcript	c.917C>T	p.Ala306Val	missense_variant	1/1		NM_023918.3	ENSP00000240615	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.95e-7

AC:

AN:

1438078

Hom.:

Cov.:

AF XY:

0.00000140

AC XY:

AN XY:

714004

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

9.06e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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 submitter

clinical testing

Ambry Genetics

Apr 22, 2024

The c.917C>T (p.A306V) alteration is located in exon 1 (coding exon 1) of the TAS2R8 gene. This alteration results from a C to T substitution at nucleotide position 917, causing the alanine (A) at amino acid position 306 to be replaced by a valine (V). 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

0.12

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.70

CADD

Benign

1.7

DANN

Benign

0.36

DEOGEN2

Benign

0.0064

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.021

M_CAP

Benign

0.0033

MetaRNN

Benign

0.067

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.55

MutationTaster

Benign

1.0

PrimateAI

Benign

0.23

PROVEAN

Benign

-0.46

REVEL

Benign

0.13

Sift

Benign

0.85

Sift4G

Benign

0.20

Polyphen

0.0

Vest4

0.050

MutPred

0.55

Loss of disorder (P = 0.0562);

MVP

0.014

MPC

0.0029

ClinPred

0.014

GERP RS

-2.7

Varity_R

0.022

gMVP

0.021

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over