Variant chr9-19423974-T-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_001010887.3(ACER2):c.221T>G(p.Val74Gly) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,457,272 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ACER2
NM_001010887.3 missense, splice_region

Scores

Splicing: ADA: 0.6167

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.82

Variant links:

Genes affected

ACER2 (HGNC:23675): (alkaline ceramidase 2) The sphingolipid metabolite sphingosine-1-phosphate promotes cell proliferation and survival, whereas its precursor, sphingosine, has the opposite effect. The ceramidase ACER2 hydrolyzes very long chain ceramides to generate sphingosine (Xu et al., 2006 [PubMed 16940153]).[supplied by OMIM, Jul 2010]

ACER2 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
ACER2	NM_001010887.3 linkuse as main transcript	c.221T>G	p.Val74Gly	missense_variant, splice_region_variant	2/6	ENST00000340967.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ACER2	ENST00000340967.3 linkuse as main transcript	c.221T>G	p.Val74Gly	missense_variant, splice_region_variant	2/6	1	NM_001010887.3	P1	Q5QJU3-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251446

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135894

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1457272

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725328

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.03e-7

Gnomad4 OTH exome

AF:

0.00

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

Mar 24, 2023

The c.221T>G (p.V74G) alteration is located in exon 2 (coding exon 2) of the ACER2 gene. This alteration results from a T to G substitution at nucleotide position 221, causing the valine (V) at amino acid position 74 to be replaced by a glycine (G). 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

Uncertain

0.46

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Pathogenic

0.22

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.50

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.71

M_CAP

Uncertain

0.16

MetaRNN

Uncertain

0.66

MetaSVM

Benign

-0.86

MutationAssessor

Uncertain

2.3

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.66

PROVEAN

Pathogenic

-5.3

REVEL

Uncertain

0.60

Sift

Uncertain

0.011

Sift4G

Uncertain

0.020

Polyphen

0.045

Vest4

0.64

MutPred

0.73

Loss of stability (P = 0.0105);

MVP

0.67

MPC

0.21

ClinPred

0.93

GERP RS

5.7

Varity_R

0.69

gMVP

0.98

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.62

dbscSNV1_RF

Benign

0.50

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.

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