chr22-36141795-C-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_145639.2(APOL3):​c.401G>T​(p.Gly134Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

APOL3
NM_145639.2 missense

Scores

3
10
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.80
Variant links:
Genes affected
APOL3 (HGNC:14868): (apolipoprotein L3) This gene is a member of the apolipoprotein L gene family, and it is present in a cluster with other family members on chromosome 22. The encoded protein is found in the cytoplasm, where it may affect the movement of lipids, including cholesterol, and/or allow the binding of lipids to organelles. In addition, expression of this gene is up-regulated by tumor necrosis factor-alpha in endothelial cells lining the normal and atherosclerotic iliac artery and aorta. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2015]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.975

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
APOL3NM_145639.2 linkuse as main transcriptc.401G>T p.Gly134Val missense_variant 4/4 ENST00000424878.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
APOL3ENST00000424878.4 linkuse as main transcriptc.401G>T p.Gly134Val missense_variant 4/41 NM_145639.2 A2O95236-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461886
Hom.:
0
Cov.:
36
AF XY:
0.00000413
AC XY:
3
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 19, 2022The c.614G>T (p.G205V) alteration is located in exon 3 (coding exon 3) of the APOL3 gene. This alteration results from a G to T substitution at nucleotide position 614, causing the glycine (G) at amino acid position 205 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.64
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.050
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.23
T;.;.;.;.
Eigen
Uncertain
0.43
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.76
T;T;.;.;T
M_CAP
Benign
0.056
D
MetaRNN
Pathogenic
0.97
D;D;D;D;D
MetaSVM
Benign
-0.30
T
MutationAssessor
Uncertain
2.8
M;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Benign
0.38
T
PROVEAN
Pathogenic
-8.3
D;.;D;D;.
REVEL
Uncertain
0.43
Sift
Uncertain
0.0010
D;.;D;D;.
Sift4G
Uncertain
0.0040
D;D;D;D;D
Polyphen
1.0
D;.;.;.;D
Vest4
0.63
MutPred
0.90
Gain of catalytic residue at G205 (P = 0.0426);.;.;.;.;
MVP
0.62
MPC
0.71
ClinPred
1.0
D
GERP RS
4.3
Varity_R
0.95
gMVP
0.82

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-36537843; API