17-56834881-C-A

Variant names:

• chr17-56834881-C-A
• rs1374447524
• NM_003647.3:c.86C>A

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_003647.3(DGKE):​c.86C>A​(p.Ser29*) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. S29S) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: DGKE NM_003647.3 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.55
• Publications: 0 publications found

Genes affected

DGKE (HGNC:2852): (diacylglycerol kinase epsilon) Diacylglycerol kinases are thought to be involved mainly in the regeneration of phosphatidylinositol (PI) from diacylglycerol in the PI-cycle during cell signal transduction. When expressed in mammalian cells, DGK-epsilon shows specificity for arachidonyl-containing diacylglycerol. DGK-epsilon is expressed predominantly in testis. [provided by RefSeq, Jul 2008]

C17orf67 (HGNC:27900): (chromosome 17 open reading frame 67) Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 47 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003647.3. 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
	DGKE	NM_003647.3	MANE Select	c.86C>A	p.Ser29*	stop_gained	Exon 2 of 12	NP_003638.1	A1L4Q0

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DGKE	ENST00000284061.8	TSL:1 MANE Select	c.86C>A	p.Ser29*	stop_gained	Exon 2 of 12	ENSP00000284061.3	P52429-1
	DGKE	ENST00000572810.1	TSL:1	c.86C>A	p.Ser29*	stop_gained	Exon 2 of 2	ENSP00000459295.1	P52429-2
	DGKE	ENST00000576869.5	TSL:1	n.234C>A		non_coding_transcript_exon	Exon 2 of 6

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000401 AC: 1 AN: 249602 AF XY: 0.00000740

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000554

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.51	D
BayesDel_noAF	Pathogenic	0.62
CADD	Pathogenic	43
DANN	Uncertain	0.99
Eigen	Pathogenic	0.90
Eigen_PC	Pathogenic	0.77
FATHMM_MKL	Uncertain	0.87	D
PhyloP100		5.5
Vest4		0.15
GERP RS		5.5
PromoterAI		0.0072	Neutral
Mutation Taster		=7/193	disease causing (fs/PTC)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.24		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.24		Position offset: 2

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

Other links and lift over

dbSNP: rs1374447524; hg19: chr17-54912242;