19-43570060-A-G

Position:

• chr19-43570060-A-G

Variant summary

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

The NM_006297.3(XRCC1):​c.144+4850T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.191 in 152,190 control chromosomes in the GnomAD database, including 2,855 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 0.19 (2855 hom., cov: 33)
• Consequence: XRCC1 NM_006297.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.124

Genes affected

XRCC1 (HGNC:12828): (X-ray repair cross complementing 1) The protein encoded by this gene is involved in the efficient repair of DNA single-strand breaks formed by exposure to ionizing radiation and alkylating agents. This protein interacts with DNA ligase III, polymerase beta and poly (ADP-ribose) polymerase to participate in the base excision repair pathway. It may play a role in DNA processing during meiogenesis and recombination in germ cells. A rare microsatellite polymorphism in this gene is associated with cancer in patients of varying radiosensitivity. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.205 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
XRCC1	NM_006297.3	c.144+4850T>C		intron_variant		ENST00000262887.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
XRCC1	ENST00000262887.10	c.144+4850T>C		intron_variant		1	NM_006297.3	P1

Frequencies

GnomAD3 genomes AF: 0.191 AC: 29004 AN: 152072 Hom.: 2856 Cov.: 33

Gnomad AFR AF: 0.209

Gnomad AMI AF: 0.257

Gnomad AMR AF: 0.166

Gnomad ASJ AF: 0.158

Gnomad EAS AF: 0.00231

Gnomad SAS AF: 0.146

Gnomad FIN AF: 0.178

Gnomad MID AF: 0.199

Gnomad NFE AF: 0.205

Gnomad OTH AF: 0.190

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

GnomAD4 genome AF: 0.191 AC: 29021 AN: 152190 Hom.: 2855 Cov.: 33 AF XY: 0.188 AC XY: 13970 AN XY: 74400

Gnomad4 AFR AF: 0.209

Gnomad4 AMR AF: 0.166

Gnomad4 ASJ AF: 0.158

Gnomad4 EAS AF: 0.00231

Gnomad4 SAS AF: 0.147

Gnomad4 FIN AF: 0.178

Gnomad4 NFE AF: 0.205

Gnomad4 OTH AF: 0.188

Alfa AF: 0.135 Hom.: 387

Bravo AF: 0.190

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	2.1
DANN	Benign	0.50

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: rs2854510; hg19: chr19-44074212;