rs963248

Positions:

• chr5-83238075-T-C

Variant summary

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

The NM_003401.5(XRCC4):​c.746-20455T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.345 in 151,928 control chromosomes in the GnomAD database, including 12,160 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 0.34 (12160 hom., cov: 31)
• Consequence: XRCC4 NM_003401.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.18

Genes affected

XRCC4 (HGNC:12831): (X-ray repair cross complementing 4) The protein encoded by this gene functions together with DNA ligase IV and the DNA-dependent protein kinase in the repair of DNA double-strand breaks. This protein plays a role in both non-homologous end joining and the completion of V(D)J recombination. Mutations in this gene can cause short stature, microcephaly, and endocrine dysfunction (SSMED). Alternate transcript variants such as NM_022406 are unlikely to be expressed in some individuals due to a polymorphism (rs1805377) in the last splice acceptor site. [provided by RefSeq, Oct 2019]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.05).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.683 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
XRCC4	NM_003401.5	c.746-20455T>C		intron_variant		ENST00000396027.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
XRCC4	ENST00000396027.9	c.746-20455T>C		intron_variant		5	NM_003401.5	A1

Frequencies

GnomAD3 genomes AF: 0.344 AC: 52262 AN: 151808 Hom.: 12135 Cov.: 31

Gnomad AFR AF: 0.625

Gnomad AMI AF: 0.112

Gnomad AMR AF: 0.339

Gnomad ASJ AF: 0.159

Gnomad EAS AF: 0.702

Gnomad SAS AF: 0.292

Gnomad FIN AF: 0.292

Gnomad MID AF: 0.218

Gnomad NFE AF: 0.174

Gnomad OTH AF: 0.309

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

GnomAD4 genome AF: 0.345 AC: 52345 AN: 151928 Hom.: 12160 Cov.: 31 AF XY: 0.351 AC XY: 26033 AN XY: 74260

Gnomad4 AFR AF: 0.625

Gnomad4 AMR AF: 0.339

Gnomad4 ASJ AF: 0.159

Gnomad4 EAS AF: 0.702

Gnomad4 SAS AF: 0.292

Gnomad4 FIN AF: 0.292

Gnomad4 NFE AF: 0.174

Gnomad4 OTH AF: 0.310

Alfa AF: 0.272 Hom.: 999

Bravo AF: 0.363

Asia WGS AF: 0.442 AC: 1534 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.1
CADD	Benign	0.72
DANN	Benign	0.53

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: rs963248; hg19: chr5-82533894;