8-47881904-T-G

Variant names:

• chr8-47881904-T-G
• rs767290425
• NM_006904.7:c.4962+8A>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_006904.7(PRKDC):​c.4962+8A>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,446,628 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PRKDC NM_006904.7 splice_region, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.914
• Publications: 0 publications found

Genes affected

PRKDC (HGNC:9413): (protein kinase, DNA-activated, catalytic subunit) This gene encodes the catalytic subunit of the DNA-dependent protein kinase (DNA-PK). It functions with the Ku70/Ku80 heterodimer protein in DNA double strand break repair and recombination. The protein encoded is a member of the PI3/PI4-kinase family.[provided by RefSeq, Jul 2010]

PRKDC Gene-Disease associations (from GenCC):

• severe combined immunodeficiency due to DNA-PKcs deficiency

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006904.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRKDC	NM_006904.7	MANE Select	c.4962+8A>C		splice_region intron	N/A	NP_008835.5
	PRKDC	NM_001081640.2		c.4962+8A>C		splice_region intron	N/A	NP_001075109.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRKDC	ENST00000314191.7	TSL:1 MANE Select	c.4962+8A>C		splice_region intron	N/A	ENSP00000313420.3
	PRKDC	ENST00000338368.7	TSL:1	c.4962+8A>C		splice_region intron	N/A	ENSP00000345182.4
	PRKDC	ENST00000697611.1		n.1066+8A>C		splice_region intron	N/A

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1446628 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 718130

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33068

American (AMR) AF: 0.00 AC: 0 AN: 42924

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25604

East Asian (EAS) AF: 0.00 AC: 0 AN: 39386

South Asian (SAS) AF: 0.00 AC: 0 AN: 84070

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53114

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5690

European-Non Finnish (NFE) AF: 0.00000181 AC: 2 AN: 1103026

Other (OTH) AF: 0.00 AC: 0 AN: 59746

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	5.0
DANN	Benign	0.40
PhyloP100		0.91
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs767290425; hg19: chr8-48794465;