rs370862896
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_006904.7(PRKDC):c.8326C>T(p.Arg2776Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000421 in 1,613,784 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2776Q) has been classified as Uncertain significance.
Frequency
Consequence
NM_006904.7 missense
Scores
Clinical Significance
Conservation
Publications
- severe combined immunodeficiency due to DNA-PKcs deficiencyInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
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ACMG classification
Our verdict: Uncertain_significance. The variant received 4 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PRKDC | ENST00000314191.7 | c.8326C>T | p.Arg2776Trp | missense_variant | Exon 61 of 86 | 1 | NM_006904.7 | ENSP00000313420.3 | ||
| PRKDC | ENST00000338368.7 | c.8326C>T | p.Arg2776Trp | missense_variant | Exon 61 of 85 | 1 | ENSP00000345182.4 | |||
| PRKDC | ENST00000697603.1 | c.1003C>T | p.Arg335Trp | missense_variant | Exon 8 of 33 | ENSP00000513358.1 | ||||
| PRKDC | ENST00000697608.1 | n.845C>T | non_coding_transcript_exon_variant | Exon 2 of 3 |
Frequencies
GnomAD3 genomes AF: 0.0000723 AC: 11AN: 152078Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000160 AC: 4AN: 249304 AF XY: 0.00000739 show subpopulations
GnomAD4 exome AF: 0.0000390 AC: 57AN: 1461706Hom.: 0 Cov.: 30 AF XY: 0.0000358 AC XY: 26AN XY: 727134 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000723 AC: 11AN: 152078Hom.: 0 Cov.: 33 AF XY: 0.0000808 AC XY: 6AN XY: 74284 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Severe combined immunodeficiency due to DNA-PKcs deficiency Uncertain:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 2776 of the PRKDC protein (p.Arg2776Trp). This variant is present in population databases (rs370862896, gnomAD 0.01%). 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: 573979). 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 expected to disrupt 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at