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rs753571180

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_000154.2(GALK1):​c.841G>A​(p.Val281Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000119 in 1,596,026 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. V281V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

GALK1
NM_000154.2 missense

Scores

9
8
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1

Conservation

PhyloP100: 7.38
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 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.967
PP5
Variant 17-75758552-C-T is Pathogenic according to our data. Variant chr17-75758552-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 557453.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GALK1NM_000154.2 linkuse as main transcriptc.841G>A p.Val281Met missense_variant 6/8 ENST00000588479.6
GALK1NM_001381985.1 linkuse as main transcriptc.841G>A p.Val281Met missense_variant 6/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GALK1ENST00000588479.6 linkuse as main transcriptc.841G>A p.Val281Met missense_variant 6/81 NM_000154.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152230
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000137
AC:
3
AN:
219578
Hom.:
0
AF XY:
0.00000822
AC XY:
1
AN XY:
121584
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:
0.0000348
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000201
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000118
AC:
17
AN:
1443796
Hom.:
0
Cov.:
34
AF XY:
0.0000125
AC XY:
9
AN XY:
717938
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000472
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000992
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152230
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.00000835
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Deficiency of galactokinase Pathogenic:1Uncertain:1
Likely pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsFeb 20, 2024- -
Uncertain significance, criteria provided, single submitterclinical testingCounsylMar 30, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.83
BayesDel_addAF
Pathogenic
0.45
D
BayesDel_noAF
Pathogenic
0.40
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.81
D;.;D
Eigen
Pathogenic
0.74
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.95
D
M_CAP
Uncertain
0.27
D
MetaRNN
Pathogenic
0.97
D;D;D
MetaSVM
Pathogenic
0.87
D
MutationAssessor
Pathogenic
3.8
H;.;H
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-2.5
D;.;.
REVEL
Pathogenic
0.83
Sift
Uncertain
0.0020
D;.;.
Sift4G
Uncertain
0.051
T;T;T
Polyphen
1.0
D;.;D
Vest4
0.97
MutPred
0.85
Gain of disorder (P = 0.1153);.;Gain of disorder (P = 0.1153);
MVP
0.91
MPC
0.68
ClinPred
0.97
D
GERP RS
4.8
Varity_R
0.74
gMVP
0.84

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: rs753571180; hg19: chr17-73754633; COSMIC: COSV52333522; COSMIC: COSV52333522; API