11-46366359-C-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS2_Supporting

The ENST00000454345.6(DGKZ):c.103C>G(p.Arg35Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000072 in 1,528,462 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R35S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

DGKZ
ENST00000454345.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.61

Publications

1 publications found

Variant links:

Genes affected

DGKZ (HGNC:2857): (diacylglycerol kinase zeta) The protein encoded by this gene belongs to the eukaryotic diacylglycerol kinase family. It may attenuate protein kinase C activity by regulating diacylglycerol levels in intracellular signaling cascade and signal transduction. Alternative splicing occurs at this locus and multiple transcript variants encoding distinct isoforms have been identified. [provided by RefSeq, Nov 2010]

DGKZ links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BS2

High AC in GnomAd4 at 7 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DGKZ	NM_001199267.2 link	c.162-932C>G		intron_variant	Intron 1 of 30	ENST00000456247.7	NP_001186196.1	Q13574-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DGKZ	ENST00000456247.7 link	c.162-932C>G		intron_variant	Intron 1 of 30	1	NM_001199267.2	ENSP00000395684.2		Q13574-2

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000735

AC:

AN:

136014

AF XY:

0.0000135

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000439

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000291

AC:

AN:

1376160

Hom.:

Cov.:

AF XY:

0.00000295

AC XY:

AN XY:

678376

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31326

American (AMR)

AF:

0.0000581

AC:

AN:

34448

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22542

East Asian (EAS)

AF:

0.00

AC:

AN:

37516

South Asian (SAS)

AF:

0.00

AC:

AN:

76304

European-Finnish (FIN)

AF:

0.00

AC:

AN:

36272

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5032

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1075708

Other (OTH)

AF:

0.0000351

AC:

AN:

57012

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74478

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41548

American (AMR)

AF:

0.000457

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.532

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.000147

ExAC

AF:

0.00000869

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 21, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.103C>G (p.R35G) alteration is located in exon 2 (coding exon 1) of the DGKZ gene. This alteration results from a C to G substitution at nucleotide position 103, causing the arginine (R) at amino acid position 35 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Aug 09, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. This variant has not been reported in the literature in individuals affected with DGKZ-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces arginine, which is basic and polar, with glycine, which is neutral and non-polar, at codon 35 of the DGKZ protein (p.Arg35Gly). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.30

BayesDel_addAF

Uncertain

0.031

BayesDel_noAF

Uncertain

-0.060

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.21

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.89

M_CAP

Pathogenic

0.81

MetaRNN

Uncertain

0.45

MetaSVM

Uncertain

-0.096

MutationAssessor

Uncertain

2.4

PhyloP100

2.6

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-2.1

REVEL

Uncertain

0.53

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.38

MutPred

0.31

Loss of methylation at R35 (P = 0.0176);

MVP

0.84

MPC

0.52

ClinPred

0.84

GERP RS

4.5

Varity_R

0.31

gMVP

0.45

Mutation Taster

=12/88

disease causing

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over