X-79171430-C-A

Variant names:

• chrX-79171430-C-A
• rs748076644
• NM_032553.3:c.423C>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_032553.3(GPR174):​c.423C>A​(p.Gly141Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000364 in 1,097,827 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G141G) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0000036 (0 hom. 1 hem.)
• Consequence: GPR174 NM_032553.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.566
• Publications: 1 publications found

Genes affected

GPR174 (HGNC:30245): (G protein-coupled receptor 174) This gene encodes a protein belonging to the G protein-coupled receptor superfamily. These proteins are characterized by the presence of seven alpha-helical transmembrane domains, and they activate or interact with various endogenous or exogenous ligands, including neurotransmitters, hormones, and odorant and taste substances. This family member is classified as an orphan receptor because the cognate ligand has not been identified. [provided by RefSeq, Sep 2011]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.49).
• BP7: Synonymous conserved (PhyloP=-0.566 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032553.3. 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
	GPR174	NM_032553.3	MANE Select	c.423C>A	p.Gly141Gly	synonymous	Exon 3 of 3	NP_115942.1	Q9BXC1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GPR174	ENST00000645147.2	MANE Select	c.423C>A	p.Gly141Gly	synonymous	Exon 3 of 3	ENSP00000494310.1	Q9BXC1
	GPR174	ENST00000871945.1		c.423C>A	p.Gly141Gly	synonymous	Exon 2 of 2	ENSP00000542004.1

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD2 exomes AF: 0.0000109 AC: 2 AN: 182977 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000729

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000364 AC: 4 AN: 1097827 Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 1 AN XY: 363205

African (AFR) AF: 0.00 AC: 0 AN: 26391

American (AMR) AF: 0.0000284 AC: 1 AN: 35203

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19380

East Asian (EAS) AF: 0.00 AC: 0 AN: 30203

South Asian (SAS) AF: 0.00 AC: 0 AN: 54137

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40526

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4135

European-Non Finnish (NFE) AF: 0.00000356 AC: 3 AN: 841765

Other (OTH) AF: 0.00 AC: 0 AN: 46087

GnomAD4 genome Cov.: 23

Alfa AF: 0.00 Hom.: 1

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.49
CADD	Benign	2.3
DANN	Benign	0.65
PhyloP100		-0.57

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

Other links and lift over

dbSNP: rs748076644; hg19: chrX-78426927;