chr8-18084823-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_004315.6(ASAH1):​c.-22T>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0383 in 1,611,716 control chromosomes in the GnomAD database, including 1,410 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.033 ( 115 hom., cov: 32)
Exomes 𝑓: 0.039 ( 1295 hom. )

Consequence

ASAH1
NM_004315.6 5_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.919
Variant links:
Genes affected
ASAH1 (HGNC:735): (N-acylsphingosine amidohydrolase 1) This gene encodes a member of the acid ceramidase family of proteins. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. Processing of this preproprotein generates alpha and beta subunits that heterodimerize to form the mature lysosomal enzyme, which catalyzes the degradation of ceramide into sphingosine and free fatty acid. This enzyme is overexpressed in multiple human cancers and may play a role in cancer progression. Mutations in this gene are associated with the lysosomal storage disorder, Farber lipogranulomatosis, and a neuromuscular disorder, spinal muscular atrophy with progressive myoclonic epilepsy. [provided by RefSeq, Oct 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 8-18084823-A-G is Benign according to our data. Variant chr8-18084823-A-G is described in ClinVar as [Benign]. Clinvar id is 558961.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-18084823-A-G is described in Lovd as [Benign].
BA1
GnomAdExome4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.0591 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ASAH1NM_004315.6 linkuse as main transcriptc.-22T>C 5_prime_UTR_variant 1/14 NP_004306.3 Q13510-2Q53H01A8K0B6
ASAH1NM_001127505.3 linkuse as main transcriptc.-22T>C 5_prime_UTR_variant 1/14 NP_001120977.1 Q13510-3Q53H01A8K0B6
ASAH1-AS1NR_125429.1 linkuse as main transcriptn.-45A>G upstream_gene_variant
ASAH1-AS1NR_125430.1 linkuse as main transcriptn.-45A>G upstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ASAH1ENST00000381733.9 linkuse as main transcriptc.-22T>C 5_prime_UTR_variant 1/141 ENSP00000371152.4 Q13510-2
ASAH1ENST00000314146.10 linkuse as main transcriptc.-22T>C 5_prime_UTR_variant 1/141 ENSP00000326970.10 Q13510-3
ASAH1ENST00000637244.1 linkuse as main transcriptn.-22T>C non_coding_transcript_exon_variant 1/141 ENSP00000490188.1 A0A1B0GUP1

Frequencies

GnomAD3 genomes
AF:
0.0329
AC:
4996
AN:
152072
Hom.:
115
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0150
Gnomad AMI
AF:
0.115
Gnomad AMR
AF:
0.0241
Gnomad ASJ
AF:
0.0778
Gnomad EAS
AF:
0.00116
Gnomad SAS
AF:
0.0537
Gnomad FIN
AF:
0.0481
Gnomad MID
AF:
0.0190
Gnomad NFE
AF:
0.0409
Gnomad OTH
AF:
0.0316
GnomAD3 exomes
AF:
0.0384
AC:
9507
AN:
247676
Hom.:
231
AF XY:
0.0411
AC XY:
5507
AN XY:
134106
show subpopulations
Gnomad AFR exome
AF:
0.0160
Gnomad AMR exome
AF:
0.0178
Gnomad ASJ exome
AF:
0.0744
Gnomad EAS exome
AF:
0.000819
Gnomad SAS exome
AF:
0.0610
Gnomad FIN exome
AF:
0.0473
Gnomad NFE exome
AF:
0.0425
Gnomad OTH exome
AF:
0.0479
GnomAD4 exome
AF:
0.0389
AC:
56723
AN:
1459526
Hom.:
1295
Cov.:
31
AF XY:
0.0399
AC XY:
28986
AN XY:
725938
show subpopulations
Gnomad4 AFR exome
AF:
0.0143
Gnomad4 AMR exome
AF:
0.0189
Gnomad4 ASJ exome
AF:
0.0751
Gnomad4 EAS exome
AF:
0.000429
Gnomad4 SAS exome
AF:
0.0605
Gnomad4 FIN exome
AF:
0.0482
Gnomad4 NFE exome
AF:
0.0387
Gnomad4 OTH exome
AF:
0.0397
GnomAD4 genome
AF:
0.0328
AC:
4994
AN:
152190
Hom.:
115
Cov.:
32
AF XY:
0.0328
AC XY:
2441
AN XY:
74412
show subpopulations
Gnomad4 AFR
AF:
0.0150
Gnomad4 AMR
AF:
0.0241
Gnomad4 ASJ
AF:
0.0778
Gnomad4 EAS
AF:
0.00116
Gnomad4 SAS
AF:
0.0535
Gnomad4 FIN
AF:
0.0481
Gnomad4 NFE
AF:
0.0409
Gnomad4 OTH
AF:
0.0317
Alfa
AF:
0.0397
Hom.:
22
Bravo
AF:
0.0296
Asia WGS
AF:
0.0300
AC:
106
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, no assertion criteria providedclinical testingMayo Clinic Laboratories, Mayo ClinicDec 15, 2015- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 28, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
1.7
DANN
Benign
0.62

Splicing

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: rs140826556; hg19: chr8-17942332; COSMIC: COSV50502053; COSMIC: COSV50502053; API