rs3213918

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000153.4(GALC):​c.1302C>T​(p.Ser434Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00517 in 1,598,544 control chromosomes in the GnomAD database, including 108 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. S434S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0075 ( 17 hom., cov: 32)
Exomes 𝑓: 0.0049 ( 91 hom. )

Consequence

GALC
NM_000153.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -1.36

Publications

7 publications found
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]
GALC Gene-Disease associations (from GenCC):
  • Krabbe disease
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Myriad Women’s Health, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), PanelApp Australia, ClinGen, Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 14-87949881-G-A is Benign according to our data. Variant chr14-87949881-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 255370.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.36 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.00746 (1134/151950) while in subpopulation EAS AF = 0.0432 (222/5134). AF 95% confidence interval is 0.0386. There are 17 homozygotes in GnomAd4. There are 568 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 17 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GALCNM_000153.4 linkc.1302C>T p.Ser434Ser synonymous_variant Exon 12 of 17 ENST00000261304.7 NP_000144.2 P54803-1A0A0A0MQV0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GALCENST00000261304.7 linkc.1302C>T p.Ser434Ser synonymous_variant Exon 12 of 17 1 NM_000153.4 ENSP00000261304.2 P54803-1

Frequencies

GnomAD3 genomes
AF:
0.00749
AC:
1137
AN:
151832
Hom.:
17
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00809
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.0435
Gnomad SAS
AF:
0.0307
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0222
Gnomad NFE
AF:
0.00222
Gnomad OTH
AF:
0.0115
GnomAD2 exomes
AF:
0.00872
AC:
2167
AN:
248572
AF XY:
0.00907
show subpopulations
Gnomad AFR exome
AF:
0.0124
Gnomad AMR exome
AF:
0.00645
Gnomad ASJ exome
AF:
0.000299
Gnomad EAS exome
AF:
0.0387
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00232
Gnomad OTH exome
AF:
0.00682
GnomAD4 exome
AF:
0.00493
AC:
7136
AN:
1446594
Hom.:
91
Cov.:
26
AF XY:
0.00547
AC XY:
3945
AN XY:
720584
show subpopulations
African (AFR)
AF:
0.0125
AC:
414
AN:
33030
American (AMR)
AF:
0.00590
AC:
263
AN:
44592
Ashkenazi Jewish (ASJ)
AF:
0.000308
AC:
8
AN:
25962
East Asian (EAS)
AF:
0.0359
AC:
1416
AN:
39464
South Asian (SAS)
AF:
0.0236
AC:
2022
AN:
85818
European-Finnish (FIN)
AF:
0.0000375
AC:
2
AN:
53290
Middle Eastern (MID)
AF:
0.0112
AC:
63
AN:
5646
European-Non Finnish (NFE)
AF:
0.00220
AC:
2419
AN:
1099060
Other (OTH)
AF:
0.00886
AC:
529
AN:
59732
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.445
Heterozygous variant carriers
0
318
636
953
1271
1589
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
134
268
402
536
670
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00746
AC:
1134
AN:
151950
Hom.:
17
Cov.:
32
AF XY:
0.00765
AC XY:
568
AN XY:
74270
show subpopulations
African (AFR)
AF:
0.0111
AC:
459
AN:
41476
American (AMR)
AF:
0.00808
AC:
123
AN:
15222
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3468
East Asian (EAS)
AF:
0.0432
AC:
222
AN:
5134
South Asian (SAS)
AF:
0.0305
AC:
147
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10588
Middle Eastern (MID)
AF:
0.0238
AC:
7
AN:
294
European-Non Finnish (NFE)
AF:
0.00222
AC:
151
AN:
67920
Other (OTH)
AF:
0.0114
AC:
24
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
52
103
155
206
258
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00269
Hom.:
0
Bravo
AF:
0.00825
Asia WGS
AF:
0.0310
AC:
107
AN:
3476
EpiCase
AF:
0.00268
EpiControl
AF:
0.00261

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Galactosylceramide beta-galactosidase deficiency Benign:4
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Sep 16, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 01, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
May 16, 2017
Mayo Clinic Laboratories, Mayo Clinic
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

not specified Benign:1
Aug 10, 2017
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

GALC-related disorder Benign:1
Jun 15, 2024
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
1.1
DANN
Benign
0.56
PhyloP100
-1.4
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
Splicevardb
2.0
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs3213918; hg19: chr14-88416225; COSMIC: COSV54324035; COSMIC: COSV54324035; API