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rs1060500748

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_000169.3(GLA):​c.640-4A>C variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000418 in 1,195,311 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.0000037 ( 0 hom. 1 hem. )

Consequence

GLA
NM_000169.3 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0004807
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.556
Variant links:
Genes affected
GLA (HGNC:4296): (galactosidase alpha) This gene encodes a homodimeric glycoprotein that hydrolyses the terminal alpha-galactosyl moieties from glycolipids and glycoproteins. This enzyme predominantly hydrolyzes ceramide trihexoside, and it can catalyze the hydrolysis of melibiose into galactose and glucose. A variety of mutations in this gene affect the synthesis, processing, and stability of this enzyme, which causes Fabry disease, a rare lysosomal storage disorder that results from a failure to catabolize alpha-D-galactosyl glycolipid moieties. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GLANM_000169.3 linkuse as main transcriptc.640-4A>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000218516.4
RPL36A-HNRNPH2NM_001199973.2 linkuse as main transcriptc.300+3493T>G intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GLAENST00000218516.4 linkuse as main transcriptc.640-4A>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_000169.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000889
AC:
1
AN:
112477
Hom.:
0
Cov.:
23
AF XY:
0.0000289
AC XY:
1
AN XY:
34631
show subpopulations
Gnomad AFR
AF:
0.0000323
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
GnomAD3 exomes
AF:
0.00000545
AC:
1
AN:
183379
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67859
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000221
GnomAD4 exome
AF:
0.00000369
AC:
4
AN:
1082834
Hom.:
0
Cov.:
29
AF XY:
0.00000286
AC XY:
1
AN XY:
349358
show subpopulations
Gnomad4 AFR exome
AF:
0.0000383
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:
0.00
Gnomad4 OTH exome
AF:
0.0000659
GnomAD4 genome
AF:
0.00000889
AC:
1
AN:
112477
Hom.:
0
Cov.:
23
AF XY:
0.0000289
AC XY:
1
AN XY:
34631
show subpopulations
Gnomad4 AFR
AF:
0.0000323
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:
0.0000508
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Fabry disease Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeSep 01, 2021This sequence change falls in intron 4 of the GLA gene. It does not directly change the encoded amino acid sequence of the GLA protein. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with GLA-related conditions. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
13
DANN
Benign
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00048
dbscSNV1_RF
Benign
0.028
SpliceAI score (max)
0.25
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.25
Position offset: -4

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: rs1060500748; hg19: chrX-100653938; API