2-75053736-C-G

Position:

• chr2-75053736-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001058.4(TACR1):​c.604G>C​(p.Val202Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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 (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TACR1 NM_001058.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.13

Genes affected

TACR1 (HGNC:11526): (tachykinin receptor 1) This gene belongs to a gene family of tachykinin receptors. These tachykinin receptors are characterized by interactions with G proteins and contain seven hydrophobic transmembrane regions. This gene encodes the receptor for the tachykinin substance P, also referred to as neurokinin 1. The encoded protein is also involved in the mediation of phosphatidylinositol metabolism of substance P. [provided by RefSeq, Sep 2008]

ACMG classification

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=0.25270575).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TACR1	NM_001058.4	c.604G>C	p.Val202Leu	missense_variant	3/5	ENST00000305249.10
TACR1	NM_015727.3	c.604G>C	p.Val202Leu	missense_variant	3/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TACR1	ENST00000305249.10	c.604G>C	p.Val202Leu	missense_variant	3/5	1	NM_001058.4	P1
TACR1	ENST00000409848.3	c.604G>C	p.Val202Leu	missense_variant	3/4	1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 03, 2024

The c.604G>C (p.V202L) alteration is located in exon 3 (coding exon 3) of the TACR1 gene. This alteration results from a G to C substitution at nucleotide position 604, causing the valine (V) at amino acid position 202 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	0.12
BayesDel_addAF	Benign	-0.022	T
BayesDel_noAF	Benign	-0.27
CADD	Benign	19
DANN	Benign	0.97
DEOGEN2	Benign	0.29	T;.
Eigen	Benign	-0.28
Eigen_PC	Benign	-0.13
FATHMM_MKL	Benign	0.27	N
LIST_S2	Benign	0.80	T;T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.25	T;T
MetaSVM	Benign	-0.82	T
MutationAssessor	Benign	0.37	N;N
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.60	T
PROVEAN	Benign	-0.98	N;N
REVEL	Benign	0.20
Sift	Benign	0.20	T;T
Sift4G	Benign	0.30	T;T
Polyphen		0.0040	B;.
Vest4		0.36
MutPred		0.49		Loss of catalytic residue at V202 (P = 0.2905);Loss of catalytic residue at V202 (P = 0.2905);
MVP		0.62
MPC		0.24
ClinPred		0.23	T
GERP RS		5.1
Varity_R		0.29
gMVP		0.44

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

Other links and lift over

dbSNP: rs771674417; hg19: chr2-75280863;