Variant chr10-50214744-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_019893.4(ASAH2):c.1139G>C(p.Gly380Ala) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000657 in 152,144 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

ASAH2
NM_019893.4 missense, splice_region

Scores

Splicing: ADA: 0.1244

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.20

Variant links:

Genes affected

ASAH2 (HGNC:18860): (N-acylsphingosine amidohydrolase 2) Ceramidases (EC 3.5.1.23), such as ASAH2, catalyze hydrolysis of the N-acyl linkage of ceramide, a second messenger in a variety of cellular events, to produce sphingosine. Sphingosine exerts both mitogenic and apoptosis-inducing activities, and its phosphorylated form functions as an intra- and intercellular second messenger (see MIM 603730) (Mitsutake et al., 2001 [PubMed 11328816]).[supplied by OMIM, Mar 2008]

ASAH2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASAH2	NM_019893.4 linkuse as main transcript	c.1139G>C	p.Gly380Ala	missense_variant, splice_region_variant	9/21	ENST00000682911.1
ASAH2	NM_001143974.3 linkuse as main transcript	c.1139G>C	p.Gly380Ala	missense_variant, splice_region_variant	9/20

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASAH2	ENST00000682911.1 linkuse as main transcript	c.1139G>C	p.Gly380Ala	missense_variant, splice_region_variant	9/21		NM_019893.4	P1	Q9NR71-1
ASAH2	ENST00000395526.9 linkuse as main transcript	c.1139G>C	p.Gly380Ala	missense_variant, splice_region_variant	10/22	1		P1	Q9NR71-1
ASAH2	ENST00000329428.10 linkuse as main transcript	c.1082G>C	p.Gly361Ala	missense_variant, splice_region_variant	8/19	1
ASAH2	ENST00000443575.5 linkuse as main transcript	c.665G>C	p.Gly222Ala	missense_variant, splice_region_variant	6/18	5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152144

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000191

AC:

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

Dec 14, 2021

The c.1139G>C (p.G380A) alteration is located in exon 8 (coding exon 8) of the ASAH2 gene. This alteration results from a G to C substitution at nucleotide position 1139, causing the glycine (G) at amino acid position 380 to be replaced by an alanine (A). 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

0.29

BayesDel_addAF

Benign

-0.060

BayesDel_noAF

Benign

-0.32

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.37

T;.;.;.

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.91

D;D;D;D

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.58

D;D;D;D

MetaSVM

Benign

-0.87

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-1.7

N;N;N;N

REVEL

Benign

0.27

Sift

Benign

0.16

T;D;T;T

Sift4G

Benign

0.20

T;T;T;T

Polyphen

1.0

D;.;D;.

Vest4

0.62

MVP

0.42

MPC

3.1

ClinPred

0.88

GERP RS

4.4

Varity_R

0.40

gMVP

0.65

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.12

dbscSNV1_RF

Benign

0.40

SpliceAI score (max)

0.27

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.27

Position offset: -5

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