rs367768055
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Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The ENST00000617979.5(GALE):āc.140A>Cā(p.Glu47Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000266 in 1,613,828 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ā ).
Frequency
Genomes: š 0.00011 ( 0 hom., cov: 32)
Exomes š: 0.000018 ( 0 hom. )
Consequence
GALE
ENST00000617979.5 missense
ENST00000617979.5 missense
Scores
6
7
6
Clinical Significance
Conservation
PhyloP100: 7.25
Genes affected
GALE (HGNC:4116): (UDP-galactose-4-epimerase) This gene encodes UDP-galactose-4-epimerase which catalyzes two distinct but analogous reactions: the epimerization of UDP-glucose to UDP-galactose, and the epimerization of UDP-N-acetylglucosamine to UDP-N-acetylgalactosamine. The bifunctional nature of the enzyme has the important metabolic consequence that mutant cells (or individuals) are dependent not only on exogenous galactose, but also on exogenous N-acetylgalactosamine as a necessary precursor for the synthesis of glycoproteins and glycolipids. Mutations in this gene result in epimerase-deficiency galactosemia, also referred to as galactosemia type 3, a disease characterized by liver damage, early-onset cataracts, deafness and cognitive disability, with symptoms ranging from mild ('peripheral' form) to severe ('generalized' form). Multiple alternatively spliced transcripts encoding the same protein have been identified. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.766
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
GALE | NM_001008216.2 | c.140A>C | p.Glu47Ala | missense_variant | 4/12 | ENST00000617979.5 | NP_001008217.1 | |
GALE | NM_000403.4 | c.140A>C | p.Glu47Ala | missense_variant | 4/12 | NP_000394.2 | ||
GALE | NM_001127621.2 | c.140A>C | p.Glu47Ala | missense_variant | 3/11 | NP_001121093.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
GALE | ENST00000617979.5 | c.140A>C | p.Glu47Ala | missense_variant | 4/12 | 1 | NM_001008216.2 | ENSP00000483375 | P1 |
Frequencies
GnomAD3 genomes AF: 0.000112 AC: 17AN: 152184Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000279 AC: 7AN: 250982Hom.: 0 AF XY: 0.0000295 AC XY: 4AN XY: 135684
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GnomAD4 exome AF: 0.0000178 AC: 26AN: 1461644Hom.: 0 Cov.: 31 AF XY: 0.0000179 AC XY: 13AN XY: 727116
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GnomAD4 genome AF: 0.000112 AC: 17AN: 152184Hom.: 0 Cov.: 32 AF XY: 0.000121 AC XY: 9AN XY: 74350
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
GALE-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Jun 17, 2023 | The GALE c.140A>C variant is predicted to result in the amino acid substitution p.Glu47Ala. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.040% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/1-24125202-T-G). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. - |
UDPglucose-4-epimerase deficiency Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Oct 21, 2021 | This sequence change replaces glutamic acid with alanine at codon 47 of the GALE protein (p.Glu47Ala). The glutamic acid residue is moderately conserved and there is a moderate physicochemical difference between glutamic acid and alanine. This variant is present in population databases (rs367768055, ExAC 0.05%). This variant has not been reported in the literature in individuals affected with GALE-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Pathogenic
D;D;D;D
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Pathogenic
D;.;.;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Uncertain
D
MutationAssessor
Benign
L;L;.;.
MutationTaster
Benign
D
PrimateAI
Benign
T
PROVEAN
Uncertain
.;D;D;D
REVEL
Pathogenic
Sift
Benign
.;T;T;T
Sift4G
Benign
T;T;.;T
Polyphen
P;P;D;D
Vest4
MVP
MPC
0.57
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at