rs104894830
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1PM2PM5PP3_StrongPP5_Very_Strong
The NM_000169.3(GLA):c.886A>G(p.Met296Val) variant causes a missense 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 Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M296I) has been classified as Pathogenic.
Frequency
Genomes: not found (cov: 23)
Consequence
GLA
NM_000169.3 missense
NM_000169.3 missense
Scores
7
9
2
Clinical Significance
Conservation
PhyloP100: 6.27
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.
PM1
?
In a hotspot region, there are 12 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 7 uncertain in NM_000169.3
PM2
?
Very rare variant in population databases, with high coverage;
PM5
?
Other missense variant is known to change same aminoacid residue: Variant chrX-101398481-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 1396452.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.985
PP5
?
Variant X-101398483-T-C is Pathogenic according to our data. Variant chrX-101398483-T-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 10717.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-101398483-T-C is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GLA | NM_000169.3 | c.886A>G | p.Met296Val | missense_variant | 6/7 | ENST00000218516.4 | |
RPL36A-HNRNPH2 | NM_001199973.2 | c.300+3026T>C | intron_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GLA | ENST00000218516.4 | c.886A>G | p.Met296Val | missense_variant | 6/7 | 1 | NM_000169.3 | 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/Likely pathogenic
Submissions summary: Pathogenic:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Fabry disease Pathogenic:4
Likely pathogenic, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Jul 13, 2021 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Aug 31, 2022 | This missense variant replaces methionine with valine at codon 296 of the GLA protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). An experimental study has shown that this variant leads to 11-12% residual GLA enzyme activity when expressed in COS-7 cells (PMID: 17555407). This variant has been reported in an adult male affected with mild cardiac variant of Fabry disease (PMID: 1846223). Residual GLA enzyme activity was detectable in cells from this patient. This variant has been reported in individuals affected with Fabry disease with symptoms confined to the kidney (PMID: 29204651, 30890379, 31798221; doi:10.1016/j.ymgme.2016.11.104; doi: 10.5812/numonthly.105759). A different missense variant occurring at the same codon, p.Met296Ile (Clinvar variation ID 10763), has been reported in multiple Japanese males affected with mild, late-onset Fabry disease (PMID: 7596372, 30386727), indicating that methionine at this position is important for GLA protein function. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). Based on the available evidence, this variant is classified as Likely Pathogenic. - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Jul 15, 2021 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | Nov 05, 2020 | This variant was determined to be pathogenic according to ACMG Guidelines, 2015 [PMID:25741868]. - |
not provided Pathogenic:2
Pathogenic, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | Nov 17, 2022 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Nov 23, 2015 | - - |
Fabry disease, cardiac variant Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Feb 07, 1991 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
CardioboostCm
Uncertain
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Benign
Dann
Uncertain
DEOGEN2
Pathogenic
D;.
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D
MetaSVM
Pathogenic
D
MutationAssessor
Uncertain
M;.
MutationTaster
Benign
A
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D;.
REVEL
Pathogenic
Sift
Uncertain
D;.
Sift4G
Uncertain
D;.
Polyphen
B;.
Vest4
MutPred
Gain of sheet (P = 0.1945);.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
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