NM_016945.3:c.665G>T

Variant names:

• chr7-122994970-C-A
• NM_016945.3:c.665G>T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_016945.3(TAS2R16):​c.665G>T​(p.Arg222Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R222H) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: TAS2R16 NM_016945.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.56

Genes affected

TAS2R16 (HGNC:14921): (taste 2 receptor member 16) This gene encodes a member of a family of candidate taste receptors that are members of the G protein-coupled receptor superfamily. These family members are specifically expressed by taste receptor cells of the tongue and palate epithelia. Each of these apparently intronless genes encodes a 7-transmembrane receptor protein, functioning as a bitter taste receptor. This gene is clustered with another 3 candidate taste receptor genes in chromosome 7 and is genetically linked to loci that influence bitter perception. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TAS2R16	NM_016945.3	c.665G>T	p.Arg222Leu	missense_variant	Exon 1 of 1	ENST00000249284.3	NP_058641.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TAS2R16	ENST00000249284.3	c.665G>T	p.Arg222Leu	missense_variant	Exon 1 of 1	6	NM_016945.3	ENSP00000249284.2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 70

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.64
CADD	Benign	15
DANN	Uncertain	0.99
DEOGEN2	Benign	0.093	T
Eigen	Benign	-0.95
Eigen_PC	Benign	-0.88
FATHMM_MKL	Benign	0.17	N
LIST_S2	Benign	0.31	T
M_CAP	Benign	0.011	T
MetaRNN	Uncertain	0.43	T
MetaSVM	Benign	-0.95	T
MutationAssessor	Benign	0.0	N
PrimateAI	Benign	0.31	T
PROVEAN	Uncertain	-2.8	D
REVEL	Benign	0.066
Sift	Uncertain	0.0050	D
Sift4G	Benign	0.12	T
Polyphen		0.0020	B
Vest4		0.17
MutPred		0.74		Gain of ubiquitination at K220 (P = 0.0432);
MVP		0.27
MPC		0.011
ClinPred		0.86	D
GERP RS		2.2
Varity_R		0.21
gMVP		0.17

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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.

Other links and lift over

hg19: chr7-122635024;