chr7-143444212-A-C

Variant summary

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

The NM_177437.1(TAS2R60):ā€‹c.760A>Cā€‹(p.Met254Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000991 in 1,614,020 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 (ā˜…).

Frequency

Genomes: š‘“ 0.000092 ( 0 hom., cov: 32)
Exomes š‘“: 0.00010 ( 0 hom. )

Consequence

TAS2R60
NM_177437.1 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.13
Variant links:
Genes affected
TAS2R60 (HGNC:20639): (taste 2 receptor member 60) This gene encodes a member of the bitter taste receptor family which belong to the G protein-coupled receptor superfamily and are predominantly expressed in taste receptor cells of the tongue and palate epithelia. This intronless taste receptor gene encodes a seven-transmembrane receptor protein, functioning as a bitter taste receptor. This gene is clustered together with eight other taste receptor genes on chromosome 7. [provided by RefSeq, Jul 2017]
EPHA1-AS1 (HGNC:27799): (EPHA1 antisense RNA 1)

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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=0.04057035).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TAS2R60NM_177437.1 linkuse as main transcriptc.760A>C p.Met254Leu missense_variant 1/1 ENST00000332690.1
EPHA1-AS1NR_033897.1 linkuse as main transcriptn.206+29013A>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TAS2R60ENST00000332690.1 linkuse as main transcriptc.760A>C p.Met254Leu missense_variant 1/1 NM_177437.1 P1
EPHA1-AS1ENST00000429289.5 linkuse as main transcriptn.206+29013A>C intron_variant, non_coding_transcript_variant 1
EPHA1-AS1ENST00000690912.1 linkuse as main transcriptn.227+29013A>C intron_variant, non_coding_transcript_variant
EPHA1-AS1ENST00000703017.1 linkuse as main transcriptn.205+29013A>C intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152140
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000191
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000438
AC:
11
AN:
251158
Hom.:
0
AF XY:
0.0000516
AC XY:
7
AN XY:
135726
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000969
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000999
AC:
146
AN:
1461880
Hom.:
0
Cov.:
31
AF XY:
0.000113
AC XY:
82
AN XY:
727240
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:
0.000121
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152140
Hom.:
0
Cov.:
32
AF XY:
0.0000942
AC XY:
7
AN XY:
74314
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000191
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000148
Hom.:
0
Bravo
AF:
0.000140
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000327
EpiControl
AF:
0.0000593

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 GeneticsFeb 05, 2024The c.760A>C (p.M254L) alteration is located in exon 1 (coding exon 1) of the TAS2R60 gene. This alteration results from a A to C substitution at nucleotide position 760, causing the methionine (M) at amino acid position 254 to be replaced by a leucine (L). 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
0.085
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.75
CADD
Benign
0.0080
DANN
Benign
0.71
DEOGEN2
Benign
0.0018
T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.062
N
M_CAP
Benign
0.0069
T
MetaRNN
Benign
0.041
T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
0.0
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.25
T
PROVEAN
Benign
0.48
N
REVEL
Benign
0.037
Sift
Benign
0.17
T
Sift4G
Benign
0.18
T
Polyphen
0.0010
B
Vest4
0.13
MutPred
0.49
Gain of catalytic residue at M254 (P = 0.0084);
MVP
0.16
MPC
0.16
ClinPred
0.053
T
GERP RS
-11
Varity_R
0.076
gMVP
0.046

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: rs377595209; hg19: chr7-143141305; COSMIC: COSV60331450; API