Genetic Variant TAS1R1:p.Met260Thr (chr1-6574911-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_138697.4(TAS1R1):c.779T>C(p.Met260Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000226 in 1,461,746 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

TAS1R1
NM_138697.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.83

Publications

1 publications found

Variant links:

Genes affected

TAS1R1 (HGNC:14448): (taste 1 receptor member 1) The protein encoded by this gene is a G protein-coupled receptor and is a component of the heterodimeric amino acid taste receptor T1R1+3. The T1R1+3 receptor responds to L-amino acids but not to D-enantiomers or other compounds. Most amino acids that are perceived as sweet activate T1R1+3, and this activation is strictly dependent on an intact T1R1+3 heterodimer. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2010]

TAS1R1 links:

LOC107984912 (HGNC:):

LOC107984912 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_138697.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TAS1R1	NM_138697.4	MANE Select	c.779T>C	p.Met260Thr	missense	Exon 3 of 6	NP_619642.2
	TAS1R1	NM_177540.3		c.499-1504T>C		intron	N/A	NP_803884.1	Q7RTX1-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TAS1R1	ENST00000333172.11	TSL:1 MANE Select	c.779T>C	p.Met260Thr	missense	Exon 3 of 6	ENSP00000331867.6	Q7RTX1-1
TAS1R1	ENST00000415267.1	TSL:1	c.274-1504T>C		intron	N/A	ENSP00000408448.1	H0Y6X0
TAS1R1	ENST00000411823.5	TSL:2	c.554T>C	p.Met185Thr	missense	Exon 2 of 3	ENSP00000414166.1	H7C3W7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000797

AC:

AN:

250844

AF XY:

0.0000148

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:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000226

AC:

AN:

1461746

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

727158

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53362

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000297

AC:

AN:

1111938

Other (OTH)

AF:

0.00

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000468

Hom.:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.34

BayesDel_addAF

Uncertain

0.045

BayesDel_noAF

Benign

-0.16

CADD

Benign

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.16

Eigen

Benign

-0.053

Eigen_PC

Benign

-0.086

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.64

M_CAP

Benign

0.067

MetaRNN

Uncertain

0.46

MetaSVM

Uncertain

0.063

MutationAssessor

Benign

1.5

PhyloP100

3.8

PrimateAI

Benign

0.47

PROVEAN

Benign

-2.0

REVEL

Uncertain

0.49

Sift

Uncertain

0.0040

Sift4G

Uncertain

0.0070

Polyphen

0.67

Vest4

0.24

MutPred

0.71

Loss of stability (P = 0.0435)

MVP

0.76

MPC

0.20

ClinPred

0.40

GERP RS

4.9

Varity_R

0.46

gMVP

0.41

Mutation Taster

=77/23

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over