Variant 2-106830129-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001142351.2(ST6GAL2):c.1255G>T(p.Asp419Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,752 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

ST6GAL2
NM_001142351.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.99

Variant links:

Genes affected

ST6GAL2 (HGNC:10861): (ST6 beta-galactoside alpha-2,6-sialyltransferase 2) This locus encodes a sialyltransferase. The encoded type II transmembrane protein catalyzes the transfer of sialic acid from CMP to an oligosaccharide substrate. Polymorphisms at this locus may be associated with variations in risperidone response in schizophrenic patients. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jan 2012]

ST6GAL2 links:

ST6GAL2 (HGNC:):

ST6GAL2 links:

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;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.874

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ST6GAL2	NM_001142351.2 linkuse as main transcript	c.1255G>T	p.Asp419Tyr	missense_variant	5/6	ENST00000409382.8	NP_001135823.1	Q96JF0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
ST6GAL2	ENST00000409382.8 linkuse as main transcript	c.1255G>T	p.Asp419Tyr	missense_variant	5/6	1	NM_001142351.2	ENSP00000386942.3	Q96JF0-1
ST6GAL2	ENST00000361686.8 linkuse as main transcript	c.1255G>T	p.Asp419Tyr	missense_variant	5/6	1		ENSP00000355273.4	Q96JF0-1
ST6GAL2	ENST00000409087.3 linkuse as main transcript	c.1255G>T	p.Asp419Tyr	missense_variant	5/6	1		ENSP00000387332.3	Q96JF0-2
ST6GAL2	ENST00000361803.3 linkuse as main transcript	c.-51G>T		upstream_gene_variant		5		ENSP00000355386.3	H7BY52

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251256

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135794

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461752

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727184

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 01, 2024

The c.1255G>T (p.D419Y) alteration is located in exon 5 (coding exon 4) of the ST6GAL2 gene. This alteration results from a G to T substitution at nucleotide position 1255, causing the aspartic acid (D) at amino acid position 419 to be replaced by a tyrosine (Y). 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

Pathogenic

0.92

BayesDel_addAF

Pathogenic

0.33

BayesDel_noAF

Pathogenic

0.32

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

T;T;.

Eigen

Pathogenic

0.89

Eigen_PC

Pathogenic

0.85

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.97

.;D;D

M_CAP

Uncertain

0.25

MetaRNN

Pathogenic

0.87

D;D;D

MetaSVM

Uncertain

0.55

MutationAssessor

Pathogenic

3.0

M;M;M

PrimateAI

Uncertain

0.73

PROVEAN

Pathogenic

-7.4

D;D;D

REVEL

Pathogenic

0.79

Sift

Uncertain

0.0010

D;D;D

Sift4G

Pathogenic

0.0010

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.78

MutPred

0.60

Loss of disorder (P = 0.1308);Loss of disorder (P = 0.1308);Loss of disorder (P = 0.1308);

MVP

0.79

MPC

1.6

ClinPred

0.99

GERP RS

6.1

Varity_R

0.74

gMVP

0.88

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