rs1015443

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_023920.2(TAS2R13):​c.776A>T​(p.Asn259Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,588 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TAS2R13
NM_023920.2 missense

Scores

1
3
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.57

Publications

60 publications found
Variant links:
Genes affected
TAS2R13 (HGNC:14919): (taste 2 receptor member 13) 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]
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]
PRR4 (HGNC:18020): (proline rich 4) This gene encodes a member of the proline-rich protein family that lacks a conserved repetitive domain. This protein may play a role in protective functions in the eye. Alternative splicing result in multiple transcript variants. Read-through transcription also exists between this gene and the upstream PRH1 (proline-rich protein HaeIII subfamily 1) gene. [provided by RefSeq, Feb 2011]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.22327968).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TAS2R13NM_023920.2 linkc.776A>T p.Asn259Ile missense_variant Exon 1 of 1 ENST00000390677.2 NP_076409.1 Q9NYV9
PRH1NM_001291315.2 linkc.104-25427A>T intron_variant Intron 3 of 5 NP_001278244.1 P02810F1T0A8
PRH1NM_001291314.2 linkc.-58-24248A>T intron_variant Intron 3 of 6 NP_001278243.1 P02810A0A087WV42F1T0A8
PRH1-PRR4NR_037918.2 linkn.545-24248A>T intron_variant Intron 4 of 9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TAS2R13ENST00000390677.2 linkc.776A>T p.Asn259Ile missense_variant Exon 1 of 1 6 NM_023920.2 ENSP00000375095.2 Q9NYV9
ENSG00000275778ENST00000536668.2 linkn.177-24248A>T intron_variant Intron 4 of 9 5 ENSP00000482961.1 A0A087WZY1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
151948
Hom.:
0
Cov.:
32
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000399
AC:
1
AN:
250392
AF XY:
0.00000739
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461588
Hom.:
0
Cov.:
49
AF XY:
0.00000138
AC XY:
1
AN XY:
727072
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33464
American (AMR)
AF:
0.00
AC:
0
AN:
44632
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39680
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86242
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53388
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111902
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
151948
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74184
African (AFR)
AF:
0.00
AC:
0
AN:
41406
American (AMR)
AF:
0.00
AC:
0
AN:
15240
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10564
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67950
Other (OTH)
AF:
0.00
AC:
0
AN:
2090

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
4.3
DANN
Benign
0.97
DEOGEN2
Benign
0.065
T
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.69
FATHMM_MKL
Benign
0.021
N
M_CAP
Benign
0.0014
T
MetaRNN
Benign
0.22
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.3
M
PhyloP100
-1.6
PrimateAI
Benign
0.33
T
PROVEAN
Pathogenic
-5.1
D
REVEL
Benign
0.055
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.016
D
Polyphen
0.84
P
Vest4
0.25
MutPred
0.51
Gain of catalytic residue at M264 (P = 0);
MVP
0.20
MPC
0.017
ClinPred
0.84
D
GERP RS
0.22
Varity_R
0.46
gMVP
0.055
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs1015443; hg19: chr12-11061122; API