NM_006904.7:c.6952G>A

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_006904.7(PRKDC):​c.6952G>A​(p.Ala2318Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000114 in 1,581,548 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

PRKDC
NM_006904.7 missense

Scores

4
10
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.09

Publications

0 publications found
Variant links:
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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.779

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRKDCNM_006904.7 linkc.6952G>A p.Ala2318Thr missense_variant Exon 52 of 86 ENST00000314191.7 NP_008835.5 P78527-1
PRKDCNM_001081640.2 linkc.6952G>A p.Ala2318Thr missense_variant Exon 52 of 85 NP_001075109.1 P78527-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRKDCENST00000314191.7 linkc.6952G>A p.Ala2318Thr missense_variant Exon 52 of 86 1 NM_006904.7 ENSP00000313420.3 P78527-1
PRKDCENST00000338368.7 linkc.6952G>A p.Ala2318Thr missense_variant Exon 52 of 85 1 ENSP00000345182.4 P78527-2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000989
AC:
2
AN:
202124
AF XY:
0.00000926
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000116
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000119
AC:
17
AN:
1429382
Hom.:
0
Cov.:
29
AF XY:
0.0000113
AC XY:
8
AN XY:
707756
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33068
American (AMR)
AF:
0.0000249
AC:
1
AN:
40084
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25556
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38990
South Asian (SAS)
AF:
0.0000122
AC:
1
AN:
81820
European-Finnish (FIN)
AF:
0.0000787
AC:
4
AN:
50846
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5724
European-Non Finnish (NFE)
AF:
0.00000914
AC:
10
AN:
1094112
Other (OTH)
AF:
0.0000169
AC:
1
AN:
59182
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.404
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74348
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41436
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000167
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Severe combined immunodeficiency due to DNA-PKcs deficiency Uncertain:2
Dec 07, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 2318 of the PRKDC protein (p.Ala2318Thr). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with PRKDC-related conditions. ClinVar contains an entry for this variant (Variation ID: 548543). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on PRKDC protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Mar 05, 2018
Genomic Research Center, Shahid Beheshti University of Medical Sciences
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.34
BayesDel_addAF
Uncertain
0.041
T
BayesDel_noAF
Benign
-0.18
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.49
T;.
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Uncertain
0.088
D
MetaRNN
Pathogenic
0.78
D;D
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Uncertain
2.6
M;M
PhyloP100
7.1
PrimateAI
Benign
0.46
T
PROVEAN
Uncertain
-2.6
D;D
REVEL
Uncertain
0.38
Sift
Benign
0.097
T;T
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.76
MVP
0.71
MPC
0.68
ClinPred
0.96
D
GERP RS
4.6
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7
Varity_R
0.71
gMVP
0.55
Mutation Taster
=66/34
polymorphism

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

Other links and lift over

dbSNP: rs779732085; hg19: chr8-48765287; API