19-44948363-T-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000483.5(APOC2):​c.-13-103T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.548 in 969,836 control chromosomes in the GnomAD database, including 150,351 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.60 ( 29001 hom., cov: 32)
Exomes 𝑓: 0.54 ( 121350 hom. )

Consequence

APOC2
NM_000483.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.277
Variant links:
Genes affected
APOC2 (HGNC:609): (apolipoprotein C2) This gene encodes a lipid-binding protein belonging to the apolipoprotein gene family. The protein is secreted in plasma where it is a component of very low density lipoprotein. This protein activates the enzyme lipoprotein lipase, which hydrolyzes triglycerides and thus provides free fatty acids for cells. Mutations in this gene cause hyperlipoproteinemia type IB, characterized by hypertriglyceridemia, xanthomas, and increased risk of pancreatitis and early atherosclerosis. This gene is present in a cluster with other related apolipoprotein genes on chromosome 19. Naturally occurring read-through transcription exists between this gene and the neighboring upstream apolipoprotein C-IV (APOC4) gene. [provided by RefSeq, Mar 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.93).
BP6
Variant 19-44948363-T-A is Benign according to our data. Variant chr19-44948363-T-A is described in ClinVar as [Benign]. Clinvar id is 1232427.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-44948363-T-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.766 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
APOC2NM_000483.5 linkuse as main transcriptc.-13-103T>A intron_variant ENST00000252490.7 NP_000474.2
APOC4-APOC2NR_037932.1 linkuse as main transcriptn.1195-103T>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
APOC2ENST00000252490.7 linkuse as main transcriptc.-13-103T>A intron_variant 2 NM_000483.5 ENSP00000252490 P1

Frequencies

GnomAD3 genomes
AF:
0.605
AC:
91693
AN:
151660
Hom.:
28952
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.773
Gnomad AMI
AF:
0.518
Gnomad AMR
AF:
0.679
Gnomad ASJ
AF:
0.478
Gnomad EAS
AF:
0.628
Gnomad SAS
AF:
0.639
Gnomad FIN
AF:
0.524
Gnomad MID
AF:
0.471
Gnomad NFE
AF:
0.502
Gnomad OTH
AF:
0.580
GnomAD4 exome
AF:
0.537
AC:
439614
AN:
818058
Hom.:
121350
Cov.:
11
AF XY:
0.538
AC XY:
231500
AN XY:
430558
show subpopulations
Gnomad4 AFR exome
AF:
0.766
Gnomad4 AMR exome
AF:
0.762
Gnomad4 ASJ exome
AF:
0.486
Gnomad4 EAS exome
AF:
0.625
Gnomad4 SAS exome
AF:
0.622
Gnomad4 FIN exome
AF:
0.529
Gnomad4 NFE exome
AF:
0.495
Gnomad4 OTH exome
AF:
0.551
GnomAD4 genome
AF:
0.605
AC:
91795
AN:
151778
Hom.:
29001
Cov.:
32
AF XY:
0.606
AC XY:
44981
AN XY:
74198
show subpopulations
Gnomad4 AFR
AF:
0.773
Gnomad4 AMR
AF:
0.680
Gnomad4 ASJ
AF:
0.478
Gnomad4 EAS
AF:
0.628
Gnomad4 SAS
AF:
0.637
Gnomad4 FIN
AF:
0.524
Gnomad4 NFE
AF:
0.502
Gnomad4 OTH
AF:
0.580
Alfa
AF:
0.568
Hom.:
3207
Bravo
AF:
0.623
Asia WGS
AF:
0.656
AC:
2282
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxAug 30, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.93
CADD
Benign
1.1
DANN
Benign
0.52
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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

Publications

LitVar

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

Other links and lift over

dbSNP: rs5120; hg19: chr19-45451620; COSMIC: COSV52990023; COSMIC: COSV52990023; API