Variant 2-106843470-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001142351.2(ST6GAL2):c.508A>G(p.Arg170Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,792 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

ST6GAL2
NM_001142351.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.23

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.050902665).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ST6GAL2	NM_001142351.2 linkuse as main transcript	c.508A>G	p.Arg170Gly	missense_variant	2/6	ENST00000409382.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ST6GAL2	ENST00000409382.8 linkuse as main transcript	c.508A>G	p.Arg170Gly	missense_variant	2/6	1	NM_001142351.2	P1	Q96JF0-1
ST6GAL2	ENST00000361686.8 linkuse as main transcript	c.508A>G	p.Arg170Gly	missense_variant	2/6	1		P1	Q96JF0-1
ST6GAL2	ENST00000409087.3 linkuse as main transcript	c.508A>G	p.Arg170Gly	missense_variant	2/6	1			Q96JF0-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251414

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135896

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461792

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727198

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

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

Dec 01, 2022

The c.508A>G (p.R170G) alteration is located in exon 2 (coding exon 1) of the ST6GAL2 gene. This alteration results from a A to G substitution at nucleotide position 508, causing the arginine (R) at amino acid position 170 to be replaced by a glycine (G). 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

Benign

0.070

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.54

Cadd

Benign

9.3

Dann

Benign

0.87

DEOGEN2

Benign

0.044

T;T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.16

M_CAP

Benign

0.0067

MetaRNN

Benign

0.051

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

L;L;L

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.42

N;N;N

REVEL

Benign

0.078

Sift

Benign

0.36

T;T;T

Sift4G

Benign

0.28

T;T;T

Polyphen

0.0020

B;B;B

Vest4

0.087

MutPred

0.20

Gain of methylation at R171 (P = 0.043);Gain of methylation at R171 (P = 0.043);Gain of methylation at R171 (P = 0.043);

MVP

0.13

MPC

0.63

ClinPred

0.085

GERP RS

-0.40

Varity_R

0.042

gMVP

0.20

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