Genetic Variant GAL3ST2:p.Gly93Ser (chr2-241801938-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_022134.3(GAL3ST2):c.277G>A(p.Gly93Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000267 in 1,612,866 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

GAL3ST2
NM_022134.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.81

Variant links:

Genes affected

GAL3ST2 (HGNC:24869): (galactose-3-O-sulfotransferase 2) This gene encodes a member of the galactose-3-O-sulfotransferase protein family. The product of this gene catalyzes sulfonation by transferring a sulfate group to the hydroxyl at C-3 of nonreducing beta-galactosyl residues, and it can act on both type 1 and type 2 (Galbeta 1-3/1-4GlcNAc-R) oligosaccharides with similar efficiencies, and on core 1 glycans. This enzyme has been implicated in tumor metastasis processes. This gene is different from the GAL3ST3 gene located on chromosome 11, which has also been referred to as GAL3ST2 and encodes a related enzyme with distinct tissue distribution and substrate specificities, compared to galactose-3-O-sulfotransferase 2. [provided by RefSeq, Jul 2008]

GAL3ST2 links:

ENSG00000215023 (HGNC:41068):

ENSG00000215023 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GAL3ST2	NM_022134.3 link	c.277G>A	p.Gly93Ser	missense_variant	Exon 3 of 4	ENST00000192314.7	NP_071417.2	Q9H3Q3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GAL3ST2	ENST00000192314.7 link	c.277G>A	p.Gly93Ser	missense_variant	Exon 3 of 4	1	NM_022134.3	ENSP00000192314.6		Q9H3Q3
ENSG00000215023	ENST00000437438.1 link	n.-31C>T		upstream_gene_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152190

Hom.:

Cov.:

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000400

AC:

AN:

249884

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135592

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

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:

0.0000355

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000260

AC:

AN:

1460676

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

726674

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000288

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152190

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74334

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:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000776

Hom.:

Bravo

AF:

0.0000756

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 26, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.277G>A (p.G93S) alteration is located in exon 3 (coding exon 3) of the GAL3ST2 gene. This alteration results from a G to A substitution at nucleotide position 277, causing the glycine (G) at amino acid position 93 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.40

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.52

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.051

Eigen

Benign

-0.019

Eigen_PC

Benign

-0.076

FATHMM_MKL

Uncertain

0.85

LIST_S2

Benign

0.76

M_CAP

Benign

0.0025

MetaRNN

Uncertain

0.43

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-3.1

REVEL

Benign

0.11

Sift

Benign

0.18

Sift4G

Benign

0.58

Polyphen

0.88

Vest4

0.31

MutPred

0.56

Loss of loop (P = 0.2237);

MVP

0.072

MPC

1.3

ClinPred

0.68

GERP RS

2.9

Varity_R

0.32

gMVP

0.72

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over