8-47774247-T-G

Position:

• chr8-47774247-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_006904.7(PRKDC):​c.12313A>C​(p.Lys4105Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 11/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PRKDC NM_006904.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.33

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.19213039).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PRKDC	NM_006904.7	c.12313A>C	p.Lys4105Gln	missense_variant	86/86	ENST00000314191.7	NP_008835.5
PRKDC	NM_001081640.2	c.12220A>C	p.Lys4074Gln	missense_variant	85/85		NP_001075109.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PRKDC	ENST00000314191.7	c.12313A>C	p.Lys4105Gln	missense_variant	86/86	1	NM_006904.7	ENSP00000313420	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 16, 2023

The p.K4105Q variant (also known as c.12313A>C), located in coding exon 86 of the PRKDC gene, results from an A to C substitution at nucleotide position 12313. The lysine at codon 4105 is replaced by glutamine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.040
CADD	Benign	18
DANN	Benign	0.91
DEOGEN2	Benign	0.056	T;.
Eigen	Benign	-0.30
Eigen_PC	Benign	-0.099
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.87	D;D
M_CAP	Benign	0.0032	T
MetaRNN	Benign	0.19	T;T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.60	N;.
MutationTaster	Benign	0.97	N;N
PrimateAI	Benign	0.27	T
REVEL	Uncertain	0.37
Sift4G	Benign	0.43	T;T
Polyphen		0.0050	B;.
Vest4		0.068
MutPred		0.40		Loss of methylation at K4105 (P = 0.002);.;
MVP		0.93
MPC		0.20
ClinPred		0.23	T
GERP RS		4.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.28
gMVP		0.39

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr8-48686808;