rs768527360

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001008216.2(GALE):​c.989G>T​(p.Cys330Phe) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000137 in 1,461,698 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C330Y) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

GALE
NM_001008216.2 missense, splice_region

Scores

14
4
1
Splicing: ADA: 0.9998
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.56
Variant links:
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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.903

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GALENM_001008216.2 linkc.989G>T p.Cys330Phe missense_variant, splice_region_variant Exon 12 of 12 ENST00000617979.5 NP_001008217.1 Q14376-1A0A384NL38
GALENM_000403.4 linkc.989G>T p.Cys330Phe missense_variant, splice_region_variant Exon 12 of 12 NP_000394.2 Q14376-1A0A384NL38
GALENM_001127621.2 linkc.989G>T p.Cys330Phe missense_variant, splice_region_variant Exon 11 of 11 NP_001121093.1 Q14376-1A0A384NL38

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GALEENST00000617979.5 linkc.989G>T p.Cys330Phe missense_variant, splice_region_variant Exon 12 of 12 1 NM_001008216.2 ENSP00000483375.1 Q14376-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250900
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135688
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461698
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727138
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.89
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.42
CADD
Pathogenic
31
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.89
D;D;T
Eigen
Pathogenic
0.83
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D;.;D
M_CAP
Pathogenic
0.32
D
MetaRNN
Pathogenic
0.90
D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.8
H;H;.
PrimateAI
Uncertain
0.71
T
PROVEAN
Pathogenic
-9.2
.;D;D
REVEL
Pathogenic
0.82
Sift
Uncertain
0.021
.;D;D
Sift4G
Uncertain
0.021
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.71
MutPred
0.56
Gain of MoRF binding (P = 0.0775);Gain of MoRF binding (P = 0.0775);.;
MVP
0.93
MPC
0.63
ClinPred
1.0
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.7
Varity_R
0.97
gMVP
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.99
SpliceAI score (max)
0.19
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: rs768527360; hg19: chr1-24122497; API