rs727503949
Positions:
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The ENST00000218516.4(GLA):c.658C>T(p.Arg220Ter) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 23)
Consequence
GLA
ENST00000218516.4 stop_gained
ENST00000218516.4 stop_gained
Scores
2
2
1
Clinical Significance
Conservation
PhyloP100: 3.71
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 Pathogenic. Variant got 18 ACMG points.
PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant X-101398928-G-A is Pathogenic according to our data. Variant chrX-101398928-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 167140.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-101398928-G-A is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
GLA | NM_000169.3 | c.658C>T | p.Arg220Ter | stop_gained | 5/7 | ENST00000218516.4 | NP_000160.1 | |
RPL36A-HNRNPH2 | NM_001199973.2 | c.300+3471G>A | intron_variant | NP_001186902.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
GLA | ENST00000218516.4 | c.658C>T | p.Arg220Ter | stop_gained | 5/7 | 1 | NM_000169.3 | ENSP00000218516 | P1 |
Frequencies
GnomAD3 genomes Cov.: 23
GnomAD3 genomes
Cov.:
23
GnomAD4 exome Cov.: 30
GnomAD4 exome
Cov.:
30
GnomAD4 genome Cov.: 23
GnomAD4 genome
Cov.:
23
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Fabry disease Pathogenic:4
Pathogenic, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Jul 15, 2021 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Dec 02, 2022 | For these reasons, this variant has been classified as Pathogenic. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. ClinVar contains an entry for this variant (Variation ID: 167140). This premature translational stop signal has been observed in individual(s) with Fabry disease (PMID: 7951217, 15702404, 23980562). This variant is not present in population databases (gnomAD no frequency). This sequence change creates a premature translational stop signal (p.Arg220*) in the GLA gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in GLA are known to be pathogenic (PMID: 10666480, 12175777). - |
Pathogenic, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | May 17, 2022 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Mar 13, 2019 | Variant summary: GLA c.658C>T (p.Arg220X) results in a premature termination codon, predicted to cause a truncation of the encoded protein or absence of the protein due to nonsense mediated decay, which are commonly known mechanisms for disease. Truncations downstream of this position have been classified as pathogenic by our laboratory (eg. p.Arg227X, p.Lys240fsX9, p.Ile242fsX8). The variant was absent in 178788 control chromosomes. c.658C>T has been reported in the literature in multiple individuals affected with Fabry Disease (Germain_2002, Meaney_1994, Mills_2005, Ries_2005, Schafer_2005, Shin_2007) and is reported to be non-enhanceable by 1-deoxygalactonojirimycin (DGJ) (Shin_2007). These data indicate that the variant is very likely to be associated with disease. Two clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. - |
not provided Pathogenic:3
Pathogenic, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Aug 23, 2017 | - - |
Pathogenic, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Pathogenic, no assertion criteria provided | clinical testing | Genome Diagnostics Laboratory, University Medical Center Utrecht | - | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
FATHMM_MKL
Uncertain
D
MutationTaster
Benign
A
Vest4
GERP RS
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at