chr17-75763386-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM5

The NM_000154.2(GALK1):​c.409G>A​(p.Gly137Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,460,932 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. G137D) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GALK1
NM_000154.2 missense

Scores

1
10
8

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.85
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 Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr17-75763385-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 803466.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GALK1NM_000154.2 linkuse as main transcriptc.409G>A p.Gly137Ser missense_variant 3/8 ENST00000588479.6
GALK1NM_001381985.1 linkuse as main transcriptc.409G>A p.Gly137Ser missense_variant 3/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GALK1ENST00000588479.6 linkuse as main transcriptc.409G>A p.Gly137Ser missense_variant 3/81 NM_000154.2 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1460932
Hom.:
0
Cov.:
37
AF XY:
0.00000138
AC XY:
1
AN XY:
726748
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Uncertain
0.061
T
BayesDel_noAF
Benign
-0.15
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.80
D;D
Eigen
Benign
0.10
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
.;D
M_CAP
Benign
0.033
D
MetaRNN
Uncertain
0.58
D;D
MetaSVM
Uncertain
-0.27
T
MutationAssessor
Benign
0.19
N;N
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.69
T
PROVEAN
Uncertain
-2.9
D;.
REVEL
Uncertain
0.44
Sift
Benign
0.18
T;.
Sift4G
Benign
0.26
T;T
Polyphen
0.065
B;B
Vest4
0.49
MutPred
0.64
Gain of glycosylation at G137 (P = 0.004);Gain of glycosylation at G137 (P = 0.004);
MVP
0.86
MPC
0.28
ClinPred
0.93
D
GERP RS
5.2
Varity_R
0.81
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: rs1555748630; hg19: chr17-73759467; API