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GeneBe

rs575139300

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_000154.2(GALK1):c.716G>A(p.Arg239Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,950 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 (★). Synonymous variant affecting the same amino acid position (i.e. R239R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

GALK1
NM_000154.2 missense

Scores

13
4
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.54
Variant links:
Genes affected
GALK1 (HGNC:4118): (galactokinase 1) Galactokinase is a major enzyme for the metabolism of galactose and its deficiency causes congenital cataracts during infancy and presenile cataracts in the adult population. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.974

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GALK1NM_000154.2 linkuse as main transcriptc.716G>A p.Arg239Gln missense_variant 5/8 ENST00000588479.6
GALK1NM_001381985.1 linkuse as main transcriptc.716G>A p.Arg239Gln missense_variant 5/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GALK1ENST00000588479.6 linkuse as main transcriptc.716G>A p.Arg239Gln missense_variant 5/81 NM_000154.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000279
AC:
7
AN:
251020
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135794
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461622
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
8
AN XY:
727118
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152328
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000896
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Deficiency of galactokinase Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylMay 09, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.80
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.42
Cadd
Pathogenic
33
Dann
Pathogenic
1.0
DEOGEN2
Pathogenic
0.90
D;.;D
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.99
D
M_CAP
Pathogenic
0.41
D
MetaRNN
Pathogenic
0.97
D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.6
H;.;H
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.48
T
PROVEAN
Uncertain
-3.5
D;.;.
REVEL
Pathogenic
0.96
Sift
Uncertain
0.0030
D;.;.
Sift4G
Uncertain
0.0090
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.98
MutPred
0.93
Loss of MoRF binding (P = 0.0503);.;Loss of MoRF binding (P = 0.0503);
MVP
0.98
MPC
0.73
ClinPred
1.0
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.87
gMVP
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs575139300; hg19: chr17-73758862; COSMIC: COSV99564234; COSMIC: COSV99564234; API