18-21683945-C-T

Variant summary

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

The NM_138340.5(ABHD3):​c.530G>A​(p.Arg177Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000812 in 1,601,418 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: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000083 ( 0 hom. )

Consequence

ABHD3
NM_138340.5 missense

Scores

10
6
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.71
Variant links:
Genes affected
ABHD3 (HGNC:18718): (abhydrolase domain containing 3, phospholipase) This gene encodes a protein containing an alpha/beta hydrolase fold, which is a catalytic domain found in a very wide range of enzymes. The function of this protein has not been determined. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

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, 0.964

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ABHD3NM_138340.5 linkuse as main transcriptc.530G>A p.Arg177Lys missense_variant 4/9 ENST00000289119.7 NP_612213.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ABHD3ENST00000289119.7 linkuse as main transcriptc.530G>A p.Arg177Lys missense_variant 4/91 NM_138340.5 ENSP00000289119 P1Q8WU67-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152150
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000828
AC:
12
AN:
1449268
Hom.:
0
Cov.:
30
AF XY:
0.00000971
AC XY:
7
AN XY:
720902
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:
0.0000109
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152150
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

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 GeneticsFeb 23, 2023The c.530G>A (p.R177K) alteration is located in exon 4 (coding exon 4) of the ABHD3 gene. This alteration results from a G to A substitution at nucleotide position 530, causing the arginine (R) at amino acid position 177 to be replaced by a lysine (K). 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
0.97
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.21
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Benign
0.39
T
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.081
D
MetaRNN
Pathogenic
0.96
D
MetaSVM
Uncertain
0.58
D
MutationAssessor
Pathogenic
3.9
H
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.65
T
PROVEAN
Uncertain
-2.9
D
REVEL
Pathogenic
0.77
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.82
MutPred
0.91
Gain of ubiquitination at R177 (P = 0.0494);
MVP
0.93
MPC
0.68
ClinPred
1.0
D
GERP RS
4.7
Varity_R
0.78
gMVP
0.96

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: rs1461641344; hg19: chr18-19263906; API