15-72343562-C-T

Variant summary

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

The NM_000520.6(HEXA):​c.*515G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.754 in 162,730 control chromosomes in the GnomAD database, including 52,573 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.74 ( 48315 hom., cov: 32)
Exomes 𝑓: 0.89 ( 4258 hom. )

Consequence

HEXA
NM_000520.6 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.0290
Variant links:
Genes affected
HEXA (HGNC:4878): (hexosaminidase subunit alpha) This gene encodes a member of the glycosyl hydrolase 20 family of proteins. The encoded preproprotein is proteolytically processed to generate the alpha subunit of the lysosomal enzyme beta-hexosaminidase. This enzyme, together with the cofactor GM2 activator protein, catalyzes the degradation of the ganglioside GM2, and other molecules containing terminal N-acetyl hexosamines. Mutations in this gene lead to an accumulation of GM2 ganglioside in neurons, the underlying cause of neurodegenerative disorders termed the GM2 gangliosidoses, including Tay-Sachs disease (GM2-gangliosidosis type I). Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 15-72343562-C-T is Benign according to our data. Variant chr15-72343562-C-T is described in ClinVar as [Benign]. Clinvar id is 317035.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.935 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HEXANM_000520.6 linkuse as main transcriptc.*515G>A 3_prime_UTR_variant 14/14 ENST00000268097.10
HEXANM_001318825.2 linkuse as main transcriptc.*515G>A 3_prime_UTR_variant 14/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HEXAENST00000268097.10 linkuse as main transcriptc.*515G>A 3_prime_UTR_variant 14/141 NM_000520.6 P1P06865-1
ENST00000570175.1 linkuse as main transcriptn.166-1824C>T intron_variant, non_coding_transcript_variant 1

Frequencies

GnomAD3 genomes
AF:
0.745
AC:
113253
AN:
151962
Hom.:
48331
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.294
Gnomad AMI
AF:
0.867
Gnomad AMR
AF:
0.844
Gnomad ASJ
AF:
0.982
Gnomad EAS
AF:
0.762
Gnomad SAS
AF:
0.934
Gnomad FIN
AF:
0.909
Gnomad MID
AF:
0.924
Gnomad NFE
AF:
0.941
Gnomad OTH
AF:
0.788
GnomAD4 exome
AF:
0.886
AC:
9436
AN:
10650
Hom.:
4258
Cov.:
0
AF XY:
0.891
AC XY:
5036
AN XY:
5654
show subpopulations
Gnomad4 AFR exome
AF:
0.193
Gnomad4 AMR exome
AF:
0.847
Gnomad4 ASJ exome
AF:
0.970
Gnomad4 EAS exome
AF:
0.727
Gnomad4 SAS exome
AF:
0.934
Gnomad4 FIN exome
AF:
0.929
Gnomad4 NFE exome
AF:
0.933
Gnomad4 OTH exome
AF:
0.901
GnomAD4 genome
AF:
0.745
AC:
113244
AN:
152080
Hom.:
48315
Cov.:
32
AF XY:
0.750
AC XY:
55730
AN XY:
74348
show subpopulations
Gnomad4 AFR
AF:
0.294
Gnomad4 AMR
AF:
0.843
Gnomad4 ASJ
AF:
0.982
Gnomad4 EAS
AF:
0.762
Gnomad4 SAS
AF:
0.934
Gnomad4 FIN
AF:
0.909
Gnomad4 NFE
AF:
0.941
Gnomad4 OTH
AF:
0.783
Alfa
AF:
0.821
Hom.:
6885
Bravo
AF:
0.719
Asia WGS
AF:
0.795
AC:
2765
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Tay-Sachs disease Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
3.2
DANN
Benign
0.41

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: rs3087652; hg19: chr15-72635903; API