Variant 17-76566226-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_006456.3(ST6GALNAC2):c.1003G>A(p.Asp335Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000985 in 1,613,920 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

ST6GALNAC2
NM_006456.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.47

Variant links:

Genes affected

ST6GALNAC2 (HGNC:10867): (ST6 N-acetylgalactosaminide alpha-2,6-sialyltransferase 2) ST6GALNAC2 belongs to a family of sialyltransferases that add sialic acids to the nonreducing ends of glycoconjugates. At the cell surface, these modifications have roles in cell-cell and cell-substrate interactions, bacterial adhesion, and protein targeting (Samyn-Petit et al., 2000 [PubMed 10742600]).[supplied by OMIM, Mar 2008]

ST6GALNAC2 links:

SNHG16 (HGNC:44352): (small nucleolar RNA host gene 16)

SNHG16 links:

(HGNC:):

links:

Genome browser will be placed here

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/exons	MANE	UniProt
ST6GALNAC2	NM_006456.3 linkuse as main transcript	c.1003G>A	p.Asp335Asn	missense_variant	9/9	ENST00000225276.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ST6GALNAC2	ENST00000225276.10 linkuse as main transcript	c.1003G>A	p.Asp335Asn	missense_variant	9/9	1	NM_006456.3	P1
SNHG16	ENST00000701062.1 linkuse as main transcript	n.194+4828C>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152126

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000517

AC:

AN:

251458

Hom.:

AF XY:

0.0000589

AC XY:

AN XY:

135912

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000791

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000102

AC:

149

AN:

1461794

Hom.:

Cov.:

AF XY:

0.0000990

AC XY:

AN XY:

727188

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000151

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000115

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152126

Hom.:

Cov.:

AF XY:

0.0000808

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000666

Hom.:

Bravo

AF:

0.0000718

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000741

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000178

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

Jul 12, 2023

The c.1003G>A (p.D335N) alteration is located in exon 9 (coding exon 9) of the ST6GALNAC2 gene. This alteration results from a G to A substitution at nucleotide position 1003, causing the aspartic acid (D) at amino acid position 335 to be replaced by an asparagine (N). 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

0.33

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.49

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Benign

0.13

T;.

Eigen

Uncertain

0.34

Eigen_PC

Uncertain

0.28

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.89

D;D

M_CAP

Benign

0.015

MetaRNN

Uncertain

0.48

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.5

L;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.57

PROVEAN

Pathogenic

-4.8

D;.

REVEL

Benign

0.26

Sift

Uncertain

0.0060

D;.

Sift4G

Uncertain

0.057

T;.

Polyphen

1.0

D;.

Vest4

0.56

MVP

0.27

MPC

0.68

ClinPred

0.66

GERP RS

3.5

Varity_R

0.73

gMVP

0.78

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