4-103589539-C-T

Variant names:

• chr4-103589539-C-T
• rs145839786
• NM_001059.3:c.*143G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_001059.3(TACR3):​c.*143G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000168 in 829,260 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000079 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00019 (2 hom.)
• Consequence: TACR3 NM_001059.3 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0420
• Publications: 0 publications found

Genes affected

TACR3 (HGNC:11528): (tachykinin receptor 3) This gene belongs to a family of genes that function as receptors for tachykinins. Receptor affinities are specified by variations in the 5'-end of the sequence. The receptors belonging to this family are characterized by interactions with G proteins and 7 hydrophobic transmembrane regions. This gene encodes the receptor for the tachykinin neurokinin 3, also referred to as neurokinin B. [provided by RefSeq, Jul 2008]

TACR3-AS1 (HGNC:55593): (TACR3 antisense RNA 1)

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BS1: Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.0000788 (12/152232) while in subpopulation EAS AF = 0.00232 (12/5178). AF 95% confidence interval is 0.00134. There are 0 homozygotes in GnomAd4. There are 6 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
• BS2: High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TACR3	NM_001059.3	c.*143G>A		3_prime_UTR_variant	Exon 5 of 5	ENST00000304883.3	NP_001050.1
TACR3-AS1	NR_186501.1	n.190-1668C>T		intron_variant	Intron 2 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TACR3	ENST00000304883.3	c.*143G>A		3_prime_UTR_variant	Exon 5 of 5	1	NM_001059.3	ENSP00000303325.2
TACR3-AS1	ENST00000502936.1	n.190-1668C>T		intron_variant	Intron 2 of 4	2
TACR3-AS1	ENST00000512401.5	n.292-1668C>T		intron_variant	Intron 3 of 4	2

Frequencies

GnomAD3 genomes AF: 0.0000789 AC: 12 AN: 152114 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00231

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

GnomAD4 exome AF: 0.000188 AC: 127 AN: 677028 Hom.: 2 Cov.: 9 AF XY: 0.000162 AC XY: 57 AN XY: 351202

African (AFR) AF: 0.00 AC: 0 AN: 17056

American (AMR) AF: 0.00 AC: 0 AN: 28836

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 17744

East Asian (EAS) AF: 0.00385 AC: 125 AN: 32434

South Asian (SAS) AF: 0.00 AC: 0 AN: 57976

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 34952

Middle Eastern (MID) AF: 0.000369 AC: 1 AN: 2712

European-Non Finnish (NFE) AF: 0.00000221 AC: 1 AN: 451630

Other (OTH) AF: 0.00 AC: 0 AN: 33688

GnomAD4 genome AF: 0.0000788 AC: 12 AN: 152232 Hom.: 0 Cov.: 33 AF XY: 0.0000806 AC XY: 6 AN XY: 74424

African (AFR) AF: 0.00 AC: 0 AN: 41538

American (AMR) AF: 0.00 AC: 0 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00232 AC: 12 AN: 5178

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68020

Other (OTH) AF: 0.00 AC: 0 AN: 2110

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000151

Asia WGS AF: 0.000866 AC: 3 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hypogonadotropic hypogonadism 11 with or without anosmia Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	0.76
DANN	Benign	0.59
PhyloP100		0.042

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

Other links and lift over

dbSNP: rs145839786; hg19: chr4-104510696;