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GeneBe

rs759284637

Variant summary

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

The NM_000154.2(GALK1):c.863C>T(p.Thr288Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000088 in 1,591,570 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. T288T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

GALK1
NM_000154.2 missense

Scores

11
6
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:3

Conservation

PhyloP100: 9.35
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, 0.988

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GALK1NM_000154.2 linkuse as main transcriptc.863C>T p.Thr288Met missense_variant 6/8 ENST00000588479.6
GALK1NM_001381985.1 linkuse as main transcriptc.863C>T p.Thr288Met missense_variant 6/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GALK1ENST00000588479.6 linkuse as main transcriptc.863C>T p.Thr288Met missense_variant 6/81 NM_000154.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152220
Hom.:
0
Cov.:
33
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000189
AC:
4
AN:
211106
Hom.:
0
AF XY:
0.0000257
AC XY:
3
AN XY:
116594
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000936
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000105
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000764
AC:
11
AN:
1439350
Hom.:
0
Cov.:
34
AF XY:
0.00000979
AC XY:
7
AN XY:
715048
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000700
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000239
Gnomad4 FIN exome
AF:
0.0000229
Gnomad4 NFE exome
AF:
0.00000452
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152220
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74370
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000264
ExAC
AF:
0.00000837
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Deficiency of galactokinase Pathogenic:1Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingCounsylNov 26, 2017- -
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityJan 10, 2022- -
Likely pathogenic, criteria provided, single submitterclinical testingMendelicsMay 28, 2019- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Feb 25, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.59
BayesDel_addAF
Pathogenic
0.47
D
BayesDel_noAF
Pathogenic
0.43
Cadd
Pathogenic
26
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.77
D;.;D
Eigen
Pathogenic
0.81
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.97
D
M_CAP
Pathogenic
0.48
D
MetaRNN
Pathogenic
0.99
D;D;D
MetaSVM
Pathogenic
0.97
D
MutationAssessor
Pathogenic
4.2
H;.;H
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.68
T
PROVEAN
Pathogenic
-5.2
D;.;.
REVEL
Pathogenic
0.83
Sift
Uncertain
0.0010
D;.;.
Sift4G
Uncertain
0.0020
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.98
MutPred
0.86
Loss of phosphorylation at T288 (P = 0.0284);.;Loss of phosphorylation at T288 (P = 0.0284);
MVP
0.97
MPC
0.69
ClinPred
0.99
D
GERP RS
4.9
Varity_R
0.71
gMVP
0.85

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: rs759284637; hg19: chr17-73754611; API