NM_006904.7:c.16G>C

Variant names:

• chr8-47960111-C-G
• rs8177999
• NM_006904.7:c.16G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_006904.7(PRKDC):​c.16G>C​(p.Ala6Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000739 in 1,352,346 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A6V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.4e-7 (0 hom.)
• Consequence: PRKDC NM_006904.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.301
• Publications: 0 publications found

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]

MCM4 (HGNC:6947): (minichromosome maintenance complex component 4) The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are essential for the initiation of eukaryotic genome replication. The hexameric protein complex formed by MCM proteins is a key component of the pre-replication complex (pre_RC) and may be involved in the formation of replication forks and in the recruitment of other DNA replication related proteins. The MCM complex consisting of this protein and MCM2, 6 and 7 proteins possesses DNA helicase activity, and may act as a DNA unwinding enzyme. The phosphorylation of this protein by CDC2 kinase reduces the DNA helicase activity and chromatin binding of the MCM complex. This gene is mapped to a region on the chromosome 8 head-to-head next to the PRKDC/DNA-PK, a DNA-activated protein kinase involved in the repair of DNA double-strand breaks. Alternatively spliced transcript variants encoding the same protein have been reported. [provided by RefSeq, Jul 2008]

MCM4 Gene-Disease associations (from GenCC):

• primary immunodeficiency with natural-killer cell deficiency and adrenal insufficiency

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen

ACMG classification

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=0.11571595).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006904.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRKDC	NM_006904.7	MANE Select	c.16G>C	p.Ala6Pro	missense	Exon 1 of 86	NP_008835.5
	PRKDC	NM_001081640.2		c.16G>C	p.Ala6Pro	missense	Exon 1 of 85	NP_001075109.1	P78527-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRKDC	ENST00000314191.7	TSL:1 MANE Select	c.16G>C	p.Ala6Pro	missense	Exon 1 of 86	ENSP00000313420.3	P78527-1
	PRKDC	ENST00000338368.7	TSL:1	c.16G>C	p.Ala6Pro	missense	Exon 1 of 85	ENSP00000345182.4	P78527-2
	PRKDC	ENST00000911724.1		c.16G>C	p.Ala6Pro	missense	Exon 1 of 86	ENSP00000581783.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.39e-7 AC: 1 AN: 1352346 Hom.: 0 Cov.: 31 AF XY: 0.00000150 AC XY: 1 AN XY: 664852

African (AFR) AF: 0.00 AC: 0 AN: 28234

American (AMR) AF: 0.00 AC: 0 AN: 33782

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24240

East Asian (EAS) AF: 0.00 AC: 0 AN: 32774

South Asian (SAS) AF: 0.00 AC: 0 AN: 76732

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 33254

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3996

European-Non Finnish (NFE) AF: 9.41e-7 AC: 1 AN: 1063036

Other (OTH) AF: 0.00 AC: 0 AN: 56298

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	13
DANN	Benign	0.95
DEOGEN2	Benign	0.12	T
Eigen	Benign	-0.90
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.27	N
LIST_S2	Benign	0.76	T
M_CAP	Benign	0.052	D
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-0.99	T
PhyloP100		-0.30
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.061
Sift	Benign	0.045	D
Sift4G	Uncertain	0.045	D
Polyphen		0.80	P
Vest4		0.15
MutPred		0.18		Gain of glycosylation at A6 (P = 0.0382)
MVP		0.24
MPC		0.54
ClinPred		0.91	D
GERP RS		-8.3
PromoterAI		0.033	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.2
Varity_R		0.10
gMVP		0.34
Mutation Taster		=93/7	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs8177999; hg19: chr8-48872671;