19-1880974-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_031213.4(ABHD17A):​c.407C>T​(p.Ala136Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000775 in 1,612,436 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/16 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000077 ( 0 hom. )

Consequence

ABHD17A
NM_031213.4 missense

Scores

15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -4.25
Variant links:
Genes affected
ABHD17A (HGNC:28756): (abhydrolase domain containing 17A, depalmitoylase) Enables palmitoyl-(protein) hydrolase activity. Involved in protein depalmitoylation and protein localization to membrane. Located in endosome membrane; nuclear speck; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.019993067).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ABHD17ANM_001130111.2 linkuse as main transcriptc.332+261C>T intron_variant ENST00000292577.12 NP_001123583.1 Q96GS6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ABHD17AENST00000292577.12 linkuse as main transcriptc.332+261C>T intron_variant 1 NM_001130111.2 ENSP00000292577.6 Q96GS6-1

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152258
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000137
AC:
34
AN:
248092
Hom.:
0
AF XY:
0.000104
AC XY:
14
AN XY:
134786
show subpopulations
Gnomad AFR exome
AF:
0.0000627
Gnomad AMR exome
AF:
0.000638
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000985
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000774
AC:
113
AN:
1460178
Hom.:
0
Cov.:
35
AF XY:
0.0000675
AC XY:
49
AN XY:
726450
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000649
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000675
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152258
Hom.:
0
Cov.:
34
AF XY:
0.0000672
AC XY:
5
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.0000723
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000869
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

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 GeneticsJul 13, 2022The c.407C>T (p.A136V) alteration is located in exon 3 (coding exon 2) of the ABHD17A gene. This alteration results from a C to T substitution at nucleotide position 407, causing the alanine (A) at amino acid position 136 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
BayesDel_addAF
Benign
-0.58
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
0.88
DANN
Benign
0.96
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.056
N
LIST_S2
Benign
0.31
T
M_CAP
Benign
0.0027
T
MetaRNN
Benign
0.020
T
MetaSVM
Benign
-1.1
T
PROVEAN
Benign
-0.36
N
REVEL
Benign
0.042
Sift
Benign
1.0
T
Sift4G
Benign
0.26
T
Polyphen
0.0020
B
Vest4
0.11
MutPred
0.30
Loss of disorder (P = 0.0682);
MVP
0.14
ClinPred
0.15
T
GERP RS
-3.2
gMVP
0.35

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: rs746433957; hg19: chr19-1880973; COSMIC: COSV99171282; COSMIC: COSV99171282; API