rs2856762

Positions:

• chr3-46371843-C-T

Variant summary

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

The NM_001394783.1(CCR5):​c.-12+855C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0675 in 152,204 control chromosomes in the GnomAD database, including 527 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 0.068 (527 hom., cov: 32)
• Consequence: CCR5 NM_001394783.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.158

Genes affected

CCR5 (HGNC:1606): (C-C motif chemokine receptor 5) This gene encodes a member of the beta chemokine receptor family, which is predicted to be a seven transmembrane protein similar to G protein-coupled receptors. This protein is expressed by T cells and macrophages, and is known to be an important co-receptor for macrophage-tropic virus, including HIV, to enter host cells. Defective alleles of this gene have been associated with the HIV infection resistance. The ligands of this receptor include monocyte chemoattractant protein 2 (MCP-2), macrophage inflammatory protein 1 alpha (MIP-1 alpha), macrophage inflammatory protein 1 beta (MIP-1 beta) and regulated on activation normal T expressed and secreted protein (RANTES). Expression of this gene was also detected in a promyeloblastic cell line, suggesting that this protein may play a role in granulocyte lineage proliferation and differentiation. This gene is located at the chemokine receptor gene cluster region. An allelic polymorphism in this gene results in both functional and non-functional alleles; the reference genome represents the functional allele. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2015]

CCR5AS (HGNC:54398): (CCR5 antisense RNA)

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.183 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CCR5	NM_001394783.1	c.-12+855C>T		intron_variant		ENST00000292303.5
CCR5AS	NR_125406.1	n.392-426G>A		intron_variant, non_coding_transcript_variant
CCR5	NM_000579.4	c.-12+855C>T		intron_variant
CCR5	NM_001100168.2	c.-12+855C>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CCR5	ENST00000292303.5	c.-12+855C>T		intron_variant		1	NM_001394783.1	P1
CCR5AS	ENST00000701879.1	n.174-426G>A		intron_variant, non_coding_transcript_variant
CCR5AS	ENST00000451485.2	n.392-426G>A		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes AF: 0.0676 AC: 10285 AN: 152086 Hom.: 528 Cov.: 32

Gnomad AFR AF: 0.0150

Gnomad AMI AF: 0.128

Gnomad AMR AF: 0.0386

Gnomad ASJ AF: 0.0608

Gnomad EAS AF: 0.0335

Gnomad SAS AF: 0.193

Gnomad FIN AF: 0.155

Gnomad MID AF: 0.111

Gnomad NFE AF: 0.0858

Gnomad OTH AF: 0.0593

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

GnomAD4 genome AF: 0.0675 AC: 10277 AN: 152204 Hom.: 527 Cov.: 32 AF XY: 0.0728 AC XY: 5412 AN XY: 74390

Gnomad4 AFR AF: 0.0150

Gnomad4 AMR AF: 0.0384

Gnomad4 ASJ AF: 0.0608

Gnomad4 EAS AF: 0.0336

Gnomad4 SAS AF: 0.194

Gnomad4 FIN AF: 0.155

Gnomad4 NFE AF: 0.0858

Gnomad4 OTH AF: 0.0582

Alfa AF: 0.0771 Hom.: 465

Bravo AF: 0.0532

Asia WGS AF: 0.0930 AC: 323 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	1.3
DANN	Benign	0.37

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: rs2856762; hg19: chr3-46413334;