chr17-56834983-G-C

Variant names:

• chr17-56834983-G-C
• rs312262694
• NM_003647.3:c.188G>C

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP2 PP5_Moderate

The NM_003647.3(DGKE):​c.188G>C​(p.Arg63Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R63G) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: DGKE NM_003647.3 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1 O:1
• Conservation: PhyloP100: 0.883
• Publications: 4 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: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 4 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 0.59049 (below the threshold of 3.09). Trascript score misZ: 0.87515 (below the threshold of 3.09). GenCC associations: The gene is linked to immunoglobulin-mediated membranoproliferative glomerulonephritis, atypical hemolytic-uremic syndrome with DGKE deficiency.
• PP5: Variant 17-56834983-G-C is Pathogenic according to our data. Variant chr17-56834983-G-C is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 50788.Status of the report is criteria_provided_single_submitter, 1 stars.

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.188G>C	p.Arg63Pro	missense	Exon 2 of 12	NP_003638.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DGKE	ENST00000284061.8	TSL:1 MANE Select	c.188G>C	p.Arg63Pro	missense	Exon 2 of 12	ENSP00000284061.3
	DGKE	ENST00000572944.1	TSL:1	c.17G>C	p.Arg6Pro	missense	Exon 1 of 10	ENSP00000458493.1
	DGKE	ENST00000572810.1	TSL:1	c.188G>C	p.Arg63Pro	missense	Exon 2 of 2	ENSP00000459295.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Likely pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Atypical hemolytic-uremic syndrome (1)
-	-	-	Hemolytic uremic syndrome, atypical, susceptibility to, 7 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.83
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.23
CADD	Benign	18
DANN	Benign	0.96
DEOGEN2	Uncertain	0.67	D
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.47
FATHMM_MKL	Benign	0.66	D
LIST_S2	Uncertain	0.93	D
M_CAP	Uncertain	0.24	D
MetaRNN	Uncertain	0.66	D
MetaSVM	Uncertain	-0.27	T
MutationAssessor	Uncertain	2.0	M
PhyloP100		0.88
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-2.1	N
REVEL	Uncertain	0.63
Sift	Benign	0.20	T
Sift4G	Benign	0.20	T
Polyphen		0.096	B
Vest4		0.51
MutPred		0.65		Loss of MoRF binding (P = 0.003)
MVP		0.86
MPC		0.84
ClinPred		0.64	D
GERP RS		-0.55
PromoterAI		0.051	Neutral
Varity_R		0.91
gMVP		0.79
Mutation Taster		=13/87	disease causing

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

Other links and lift over

dbSNP: rs312262694; hg19: chr17-54912344;