8-47785172-C-T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_006904.7(PRKDC):​c.11048G>A​(p.Cys3683Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000139 in 1,613,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

PRKDC
NM_006904.7 missense

Scores

2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.516

Publications

3 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: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.047645003).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRKDCNM_006904.7 linkc.11048G>A p.Cys3683Tyr missense_variant Exon 77 of 86 ENST00000314191.7 NP_008835.5
PRKDCNM_001081640.2 linkc.11048G>A p.Cys3683Tyr missense_variant Exon 77 of 85 NP_001075109.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRKDCENST00000314191.7 linkc.11048G>A p.Cys3683Tyr missense_variant Exon 77 of 86 1 NM_006904.7 ENSP00000313420.3
PRKDCENST00000338368.7 linkc.11048G>A p.Cys3683Tyr missense_variant Exon 77 of 85 1 ENSP00000345182.4
PRKDCENST00000697603.1 linkc.3725G>A p.Cys1242Tyr missense_variant Exon 24 of 33 ENSP00000513358.1
PRKDCENST00000697602.1 linkn.1621G>A non_coding_transcript_exon_variant Exon 9 of 18

Frequencies

GnomAD3 genomes
AF:
0.000256
AC:
39
AN:
152140
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000559
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000156
AC:
39
AN:
249280
AF XY:
0.000133
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.0000869
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000301
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000127
AC:
185
AN:
1461682
Hom.:
0
Cov.:
31
AF XY:
0.000117
AC XY:
85
AN XY:
727120
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.0000447
AC:
2
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000160
AC:
178
AN:
1111860
Other (OTH)
AF:
0.0000663
AC:
4
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
14
28
43
57
71
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000256
AC:
39
AN:
152258
Hom.:
0
Cov.:
32
AF XY:
0.000228
AC XY:
17
AN XY:
74438
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41544
American (AMR)
AF:
0.00
AC:
0
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000559
AC:
38
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
2
4
7
9
11
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:
0.000299
Hom.:
0
Bravo
AF:
0.000212
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000490
AC:
4
ExAC
AF:
0.000166
AC:
20
EpiCase
AF:
0.000436
EpiControl
AF:
0.000237

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Severe combined immunodeficiency due to DNA-PKcs deficiency Uncertain:1
Oct 05, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 3683 of the PRKDC protein (p.Cys3683Tyr). This variant is present in population databases (rs148018130, gnomAD 0.03%). 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: 475215). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Not Available"; Align-GVGD: "Not Available". The tyrosine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.084
T
BayesDel_noAF
Uncertain
-0.060
CADD
Benign
1.3
DANN
Benign
0.50
DEOGEN2
Benign
0.097
T;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-0.93
FATHMM_MKL
Benign
0.62
D
LIST_S2
Benign
0.81
T;T
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.048
T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
-0.20
N;N
PhyloP100
0.52
PrimateAI
Benign
0.44
T
REVEL
Uncertain
0.44
Sift4G
Benign
0.92
T;T
Polyphen
0.0
B;.
Vest4
0.095
MVP
0.81
MPC
0.28
ClinPred
0.012
T
GERP RS
2.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.098
gMVP
0.56
Mutation Taster
=88/12
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: rs148018130; hg19: chr8-48697733; API