rs759110815

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP5

The NM_000153.4(GALC):​c.179C>T​(p.Ala60Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000363 in 1,376,222 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A60A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

GALC
NM_000153.4 missense

Scores

6
9
4

Clinical Significance

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

Conservation

PhyloP100: 2.98
Variant links:
Genes affected
GALC (HGNC:4115): (galactosylceramidase) This gene encodes a lysosomal protein which hydrolyzes the galactose ester bonds of galactosylceramide, galactosylsphingosine, lactosylceramide, and monogalactosyldiglyceride. Mutations in this gene have been associated with Krabbe disease, also known as globoid cell leukodystrophy. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a hotspot region, there are 7 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_000153.4
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 14-87992986-G-A is Pathogenic according to our data. Variant chr14-87992986-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 551142.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Likely_pathogenic=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GALCNM_000153.4 linkuse as main transcriptc.179C>T p.Ala60Val missense_variant 1/17 ENST00000261304.7
GALCNM_001201401.2 linkuse as main transcriptc.179C>T p.Ala60Val missense_variant 1/16
GALCNM_001201402.2 linkuse as main transcriptc.117+397C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GALCENST00000261304.7 linkuse as main transcriptc.179C>T p.Ala60Val missense_variant 1/171 NM_000153.4 P1P54803-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000225
AC:
3
AN:
133480
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
74964
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000396
Gnomad ASJ exome
AF:
0.000135
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000466
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000363
AC:
5
AN:
1376222
Hom.:
0
Cov.:
33
AF XY:
0.00000294
AC XY:
2
AN XY:
680934
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000273
Gnomad4 ASJ exome
AF:
0.0000413
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000185
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378
ExAC
AF:
0.00000958
AC:
1

ClinVar

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

Submissions by phenotype

not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingMayo Clinic Laboratories, Mayo ClinicJun 09, 2023PM2, PM5, PS3_moderate -
Galactosylceramide beta-galactosidase deficiency Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylMar 16, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.80
BayesDel_addAF
Pathogenic
0.28
D
BayesDel_noAF
Pathogenic
0.16
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.83
D;.
Eigen
Benign
-0.068
Eigen_PC
Benign
-0.11
FATHMM_MKL
Benign
0.72
D
LIST_S2
Uncertain
0.96
D;T
M_CAP
Pathogenic
0.31
D
MetaRNN
Uncertain
0.68
D;D
MetaSVM
Uncertain
0.73
D
MutationAssessor
Uncertain
2.8
M;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.72
T
PROVEAN
Uncertain
-3.0
D;D
REVEL
Pathogenic
0.73
Sift
Uncertain
0.0050
D;T
Sift4G
Uncertain
0.0090
D;D
Polyphen
0.91
P;.
Vest4
0.87
MutPred
0.70
Gain of catalytic residue at G65 (P = 0);Gain of catalytic residue at G65 (P = 0);
MVP
0.95
MPC
0.23
ClinPred
0.91
D
GERP RS
2.3
Varity_R
0.29
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: rs759110815; hg19: chr14-88459330; API