chr12-55939426-C-T

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBS1BS2

The NM_001351038.2(DGKA):​c.-368C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00295 in 1,614,116 control chromosomes in the GnomAD database, including 105 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.014 ( 58 hom., cov: 32)
Exomes 𝑓: 0.0018 ( 47 hom. )

Consequence

DGKA
NM_001351038.2 5_prime_UTR_premature_start_codon_gain

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -1.09
Variant links:
Genes affected
DGKA (HGNC:2849): (diacylglycerol kinase alpha) The protein encoded by this gene belongs to the eukaryotic diacylglycerol kinase family. It acts as a modulator that competes with protein kinase C for the second messenger diacylglycerol in intracellular signaling pathways. It also plays an important role in the resynthesis of phosphatidylinositols and phosphorylating diacylglycerol to phosphatidic acid. Several transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Apr 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.43).
BP6
Variant 12-55939426-C-T is Benign according to our data. Variant chr12-55939426-C-T is described in ClinVar as [Benign]. Clinvar id is 715651.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0138 (2107/152234) while in subpopulation AFR AF= 0.0451 (1875/41532). AF 95% confidence interval is 0.0434. There are 58 homozygotes in gnomad4. There are 1003 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 2107 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DGKANM_001345.5 linkuse as main transcriptc.606C>T p.Asp202Asp synonymous_variant 9/24 ENST00000331886.10 NP_001336.2 P23743-1A0A024RB23

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DGKAENST00000331886.10 linkuse as main transcriptc.606C>T p.Asp202Asp synonymous_variant 9/245 NM_001345.5 ENSP00000328405.5 P23743-1

Frequencies

GnomAD3 genomes
AF:
0.0139
AC:
2107
AN:
152116
Hom.:
58
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0453
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00367
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00104
Gnomad FIN
AF:
0.0127
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000235
Gnomad OTH
AF:
0.00957
GnomAD3 exomes
AF:
0.00465
AC:
1170
AN:
251402
Hom.:
25
AF XY:
0.00372
AC XY:
505
AN XY:
135868
show subpopulations
Gnomad AFR exome
AF:
0.0460
Gnomad AMR exome
AF:
0.00171
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00105
Gnomad FIN exome
AF:
0.0125
Gnomad NFE exome
AF:
0.000413
Gnomad OTH exome
AF:
0.00228
GnomAD4 exome
AF:
0.00182
AC:
2657
AN:
1461882
Hom.:
47
Cov.:
32
AF XY:
0.00164
AC XY:
1191
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.0472
Gnomad4 AMR exome
AF:
0.00208
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000951
Gnomad4 FIN exome
AF:
0.0104
Gnomad4 NFE exome
AF:
0.000150
Gnomad4 OTH exome
AF:
0.00285
GnomAD4 genome
AF:
0.0138
AC:
2107
AN:
152234
Hom.:
58
Cov.:
32
AF XY:
0.0135
AC XY:
1003
AN XY:
74430
show subpopulations
Gnomad4 AFR
AF:
0.0451
Gnomad4 AMR
AF:
0.00366
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.0127
Gnomad4 NFE
AF:
0.000235
Gnomad4 OTH
AF:
0.00947
Alfa
AF:
0.00368
Hom.:
8
Bravo
AF:
0.0144
Asia WGS
AF:
0.00231
AC:
8
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.000356

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 09, 2018- -
DGKA-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 09, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.43
CADD
Benign
5.5
DANN
Benign
0.67

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs17118135; hg19: chr12-56333210; COSMIC: COSV100093138; COSMIC: COSV100093138; API