Variant chr15-89188255-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_152924.5(ABHD2):c.878G>A(p.Arg293Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000548 in 1,458,926 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

ABHD2
NM_152924.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.12

Variant links:

Genes affected

ABHD2 (HGNC:18717): (abhydrolase domain containing 2, acylglycerol lipase) This gene encodes a protein containing an alpha/beta hydrolase fold, which is a catalytic domain found in a wide range of enzymes. The encoded protein is an acylglycerol lipase that catalyzes the hydrolysis of endocannabinoid arachidonoylglycerol from the cell membrane. This leads to activation of the sperm calcium channel CatSper, which results in sperm activation. Alternative splicing of this gene results in two transcript variants encoding the same protein. [provided by RefSeq, Jan 2017]

ABHD2 links:

ABHD2 (HGNC:):

ABHD2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.23836732).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ABHD2	NM_152924.5 linkuse as main transcript	c.878G>A	p.Arg293Gln	missense_variant	8/11	ENST00000352732.10	NP_690888.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
ABHD2	ENST00000352732.10 linkuse as main transcript	c.878G>A	p.Arg293Gln	missense_variant	8/11	1	NM_152924.5	ENSP00000268129.5	P08910
ABHD2	ENST00000565973.5 linkuse as main transcript	c.878G>A	p.Arg293Gln	missense_variant	12/15	5		ENSP00000455639.1	P08910
ABHD2	ENST00000568308.1 linkuse as main transcript	n.165G>A		non_coding_transcript_exon_variant	2/4	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251346

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135836

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000548

AC:

AN:

1458926

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

725722

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:

0.00000630

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

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 submitter

clinical testing

Ambry Genetics

Aug 22, 2022

The c.878G>A (p.R293Q) alteration is located in exon 12 (coding exon 6) of the ABHD2 gene. This alteration results from a G to A substitution at nucleotide position 878, causing the arginine (R) at amino acid position 293 to be replaced by a glutamine (Q). 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

Benign

0.12

BayesDel_addAF

Benign

0.0022

BayesDel_noAF

Benign

-0.23

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.10

T;T

Eigen

Benign

-0.040

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.97

LIST_S2

Pathogenic

0.98

.;D

M_CAP

Benign

0.014

MetaRNN

Benign

0.24

T;T

MetaSVM

Benign

-0.91

MutationAssessor

Uncertain

2.5

M;M

PrimateAI

Benign

0.42

PROVEAN

Benign

-1.0

N;N

REVEL

Benign

0.088

Sift

Benign

0.077

T;T

Sift4G

Benign

0.24

T;T

Polyphen

0.042

B;B

Vest4

0.39

MutPred

0.44

Loss of helix (P = 0.0626);Loss of helix (P = 0.0626);

MVP

0.77

MPC

0.87

ClinPred

0.77

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.26

gMVP

0.56

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over