rs1000728174

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006904.7(PRKDC):​c.2112T>A​(p.Phe704Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000033 in 1,574,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

PRKDC
NM_006904.7 missense

Scores

1
6
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.15

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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.24194616).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRKDCNM_006904.7 linkc.2112T>A p.Phe704Leu missense_variant Exon 19 of 86 ENST00000314191.7 NP_008835.5 P78527-1
PRKDCNM_001081640.2 linkc.2112T>A p.Phe704Leu missense_variant Exon 19 of 85 NP_001075109.1 P78527-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRKDCENST00000314191.7 linkc.2112T>A p.Phe704Leu missense_variant Exon 19 of 86 1 NM_006904.7 ENSP00000313420.3 P78527-1
PRKDCENST00000338368.7 linkc.2112T>A p.Phe704Leu missense_variant Exon 19 of 85 1 ENSP00000345182.4 P78527-2
PRKDCENST00000541488.1 linkn.51T>A non_coding_transcript_exon_variant Exon 1 of 3 3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152268
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:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000103
AC:
2
AN:
193946
AF XY:
0.00
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:
0.0000244
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000344
AC:
49
AN:
1422558
Hom.:
0
Cov.:
30
AF XY:
0.0000298
AC XY:
21
AN XY:
703710
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32672
American (AMR)
AF:
0.00
AC:
0
AN:
39334
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25414
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38366
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80902
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50978
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5716
European-Non Finnish (NFE)
AF:
0.0000431
AC:
47
AN:
1090142
Other (OTH)
AF:
0.0000339
AC:
2
AN:
59034
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000197
AC:
3
AN:
152268
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74402
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41472
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5208
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68046
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
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:
0.0000847
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Sep 22, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.2112T>A (p.F704L) alteration is located in exon 19 (coding exon 19) of the PRKDC gene. This alteration results from a T to A substitution at nucleotide position 2112, causing the phenylalanine (F) at amino acid position 704 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Severe combined immunodeficiency due to DNA-PKcs deficiency Uncertain:1
Aug 05, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 704 of the PRKDC protein (p.Phe704Leu). This variant is present in population databases (no rsID available, gnomAD 0.002%). 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: 541990). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt PRKDC protein function with a negative predictive value of 80%. 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. -

PRKDC-related disorder Uncertain:1
Aug 02, 2024
PreventionGenetics, part of Exact Sciences
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

The PRKDC c.2112T>A variant is predicted to result in the amino acid substitution p.Phe704Leu. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0024% of alleles in individuals of European (Non-Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.80
BayesDel_addAF
Benign
-0.060
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.43
T;.
Eigen
Benign
-0.36
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.72
T;T
M_CAP
Benign
0.041
D
MetaRNN
Benign
0.24
T;T
MetaSVM
Benign
-0.81
T
PhyloP100
3.1
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-3.9
D;D
REVEL
Benign
0.11
Sift
Uncertain
0.0060
D;D
Sift4G
Benign
0.17
T;T
Polyphen
0.10
B;B
Vest4
0.47
MutPred
0.36
Gain of catalytic residue at F704 (P = 0.0461);Gain of catalytic residue at F704 (P = 0.0461);
MVP
0.71
MPC
0.48
ClinPred
0.83
D
GERP RS
2.9
Varity_R
0.18
gMVP
0.62
Mutation Taster
=75/25
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: rs1000728174; hg19: chr8-48841679; COSMIC: COSV58056733; API