12-10939044-C-T

Variant summary

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

The NM_023922.2(TAS2R14):c.164G>A(p.Arg55Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000215 in 1,613,742 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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. R55G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

TAS2R14
NM_023922.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.30

Variant links:

Genes affected

TAS2R14 (HGNC:14920): (taste 2 receptor member 14) 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]

TAS2R14 links:

PRH1-TAS2R14 (HGNC:):

PRH1-TAS2R14 links:

PRH1 (HGNC:9366): (proline rich protein HaeIII subfamily 1) This gene encodes a member of the heterogeneous family of proline-rich salivary glycoproteins. The encoded preproprotein undergoes proteolytic processing to generate one or more mature isoforms before secretion from the parotid and submandibular/sublingual glands. Multiple distinct alleles of this locus including the parotid isoelectric-focusing variant slow (PIF-s), the parotid acidic protein (Pa), and the double band slow (Db-s) isoforms have been characterized. The reference genome encodes the Db-s allele. Certain alleles of this gene are associated with susceptibility to dental caries. This gene is located in a cluster of closely related salivary proline-rich proteins on chromosome 12. Co-transcription of this gene with adjacent genes has been observed. Alternate splicing of this gene results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2015]

PRH1 links:

Genome browser will be placed here

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=0.2379829).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TAS2R14	NM_023922.2 linkuse as main transcript	c.164G>A	p.Arg55Gln	missense_variant	1/1	ENST00000537503.2
PRH1-TAS2R14	NM_001316893.2 linkuse as main transcript	c.208-467G>A		intron_variant
PRH1-PRR4	NR_037918.2 linkuse as main transcript	n.544+34611G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TAS2R14	ENST00000537503.2 linkuse as main transcript	c.164G>A	p.Arg55Gln	missense_variant	1/1		NM_023922.2	P1
	ENST00000703543.1 linkuse as main transcript	c.-59+34611G>A		intron_variant				P1

Frequencies

GnomAD3 genomes

AF:

0.000177

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000377

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000243

AC:

AN:

250694

Hom.:

AF XY:

0.000221

AC XY:

AN XY:

135522

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000872

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.000556

Gnomad NFE exome

AF:

0.000379

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000219

AC:

320

AN:

1461588

Hom.:

Cov.:

AF XY:

0.000219

AC XY:

159

AN XY:

727054

show subpopulations

Gnomad4 AFR exome

AF:

0.000149

Gnomad4 AMR exome

AF:

0.0000672

Gnomad4 ASJ exome

AF:

0.0000766

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000812

Gnomad4 FIN exome

AF:

0.000506

Gnomad4 NFE exome

AF:

0.000238

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.000177

AC:

AN:

152154

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.0000724

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000377

Gnomad4 NFE

AF:

0.000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000299

Hom.:

Bravo

AF:

0.000242

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000239

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000356

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

Oct 26, 2022

The c.164G>A (p.R55Q) alteration is located in exon 1 (coding exon 1) of the TAS2R14 gene. This alteration results from a G to A substitution at nucleotide position 164, causing the arginine (R) at amino acid position 55 to be replaced by a glutamine (Q). 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

0.23

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.33

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.22

Eigen

Benign

-0.041

Eigen_PC

Benign

-0.31

FATHMM_MKL

Benign

0.12

M_CAP

Benign

0.0045

MetaRNN

Benign

0.24

MetaSVM

Benign

-0.81

MutationAssessor

Pathogenic

3.6

MutationTaster

Benign

1.0

PrimateAI

Benign

0.25

PROVEAN

Uncertain

-3.7

REVEL

Benign

0.13

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0070

Polyphen

1.0

Vest4

0.28

MVP

0.63

MPC

0.14

ClinPred

0.34

GERP RS

3.0

Varity_R

0.40

gMVP

0.25

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over