rs587777604

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001042472.3(ABHD12):ā€‹c.557G>Cā€‹(p.Arg186Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,288 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

ABHD12
NM_001042472.3 missense

Scores

11
5
3

Clinical Significance

Conflicting classifications of pathogenicity no assertion criteria provided P:1U:1

Conservation

PhyloP100: 6.38
Variant links:
Genes affected
ABHD12 (HGNC:15868): (abhydrolase domain containing 12, lysophospholipase) This gene encodes an enzyme that catalyzes the hydrolysis of 2-arachidonoyl glycerol (2-AG), the main endocannabinoid lipid transmitter that acts on cannabinoid receptors, CB1 and CB2. The endocannabinoid system is involved in a wide range of physiological processes, including neurotransmission, mood, appetite, pain appreciation, addiction behavior, and inflammation. Mutations in this gene are associated with the neurodegenerative disease, PHARC (polyneuropathy, hearing loss, ataxia, retinitis pigmentosa, and cataract), resulting from an inborn error of endocannabinoid metabolism. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene.[provided by RefSeq, Jan 2011]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.875

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ABHD12NM_001042472.3 linkuse as main transcriptc.557G>C p.Arg186Pro missense_variant 5/13 ENST00000339157.10 NP_001035937.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ABHD12ENST00000339157.10 linkuse as main transcriptc.557G>C p.Arg186Pro missense_variant 5/132 NM_001042472.3 ENSP00000341408 P1Q8N2K0-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460288
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
726386
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

PHARC syndrome Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMAug 01, 2014- -
Cone dystrophy Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+Sep 01, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.21
CADD
Pathogenic
29
DANN
Uncertain
0.99
DEOGEN2
Benign
0.23
.;T;.;T;T
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
D;D;D;D;D
M_CAP
Benign
0.045
D
MetaRNN
Pathogenic
0.88
D;D;D;D;D
MetaSVM
Uncertain
-0.099
T
MutationAssessor
Pathogenic
3.3
M;M;.;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Pathogenic
-6.9
D;D;.;.;D
REVEL
Pathogenic
0.83
Sift
Pathogenic
0.0
D;D;.;.;D
Sift4G
Pathogenic
0.0
D;D;.;.;D
Polyphen
0.097
B;D;.;.;D
Vest4
0.99
MutPred
0.70
Loss of methylation at R186 (P = 0.0306);Loss of methylation at R186 (P = 0.0306);.;.;.;
MVP
0.59
MPC
0.69
ClinPred
1.0
D
GERP RS
4.2
Varity_R
0.99
gMVP
0.97

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: rs587777604; hg19: chr20-25297700; API