rs13075270

Positions:

• chr3-46212298-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000357422.2(CCR3):​c.-68+1391T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.128 in 152,140 control chromosomes in the GnomAD database, including 1,537 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 0.13 (1537 hom., cov: 31)
• Consequence: CCR3 ENST00000357422.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0570

Genes affected

CCR3 (HGNC:1604): (C-C motif chemokine receptor 3) The protein encoded by this gene is a receptor for C-C type chemokines. It belongs to family 1 of the G protein-coupled receptors. This receptor binds and responds to a variety of chemokines, including eotaxin (CCL11), eotaxin-3 (CCL26), MCP-3 (CCL7), MCP-4 (CCL13), and RANTES (CCL5). It is highly expressed in eosinophils and basophils, and is also detected in TH1 and TH2 cells, as well as in airway epithelial cells. This receptor may contribute to the accumulation and activation of eosinophils and other inflammatory cells in the allergic airway. It is also known to be an entry co-receptor for HIV-1. This gene and seven other chemokine receptor genes form a chemokine receptor gene cluster on the chromosomal region 3p21. Alternatively spliced transcript variants have been described. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.98).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.263 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCR3	XM_006712960.4	c.-68+1391T>C		intron_variant			XP_006713023.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CCR3	ENST00000357422.2	c.-68+1391T>C		intron_variant		2		ENSP00000350003	P1

Frequencies

GnomAD3 genomes AF: 0.128 AC: 19405 AN: 152022 Hom.: 1529 Cov.: 31

Gnomad AFR AF: 0.202

Gnomad AMI AF: 0.181

Gnomad AMR AF: 0.0865

Gnomad ASJ AF: 0.143

Gnomad EAS AF: 0.0395

Gnomad SAS AF: 0.275

Gnomad FIN AF: 0.134

Gnomad MID AF: 0.210

Gnomad NFE AF: 0.0850

Gnomad OTH AF: 0.122

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.128 AC: 19420 AN: 152140 Hom.: 1537 Cov.: 31 AF XY: 0.131 AC XY: 9758 AN XY: 74384

Gnomad4 AFR AF: 0.202

Gnomad4 AMR AF: 0.0862

Gnomad4 ASJ AF: 0.143

Gnomad4 EAS AF: 0.0394

Gnomad4 SAS AF: 0.276

Gnomad4 FIN AF: 0.134

Gnomad4 NFE AF: 0.0849

Gnomad4 OTH AF: 0.121

Alfa AF: 0.117 Hom.: 245

Bravo AF: 0.124

Asia WGS AF: 0.152 AC: 527 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.98
CADD	Benign	6.1
DANN	Benign	0.66

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: rs13075270; hg19: chr3-46253789;