Genetic Variant NM_001394073.1:c.1226A>G (chrX-132628935-T-C) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_001394073.1(HS6ST2):c.1226A>G(p.Asp409Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,209,505 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., 4 hem., cov: 23)

Exomes 𝑓: 0.000011 ( 0 hom. 4 hem. )

Consequence

HS6ST2
NM_001394073.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.02

Variant links:

Genes affected

HS6ST2 (HGNC:19133): (heparan sulfate 6-O-sulfotransferase 2) Heparan sulfate proteoglycans are ubiquitous components of the cell surface, extracellular matrix, and basement membranes, and interact with various ligands to influence cell growth, differentiation, adhesion, and migration. This gene encodes a member of the heparan sulfate (HS) sulfotransferase gene family, which catalyze the transfer of sulfate to HS. Different family members and isoforms are thought to synthesize heparan sulfates with tissue-specific structures and functions. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

HS6ST2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.776

BS2

High Hemizygotes in GnomAd4 at 4 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HS6ST2	NM_001394073.1 link	c.1226A>G	p.Asp409Gly	missense_variant	Exon 5 of 5	ENST00000370833.7	NP_001381002.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HS6ST2	ENST00000370833.7 link	c.1226A>G	p.Asp409Gly	missense_variant	Exon 5 of 5	5	NM_001394073.1	ENSP00000359870.3		Q96MM7-4

Frequencies

GnomAD3 genomes

AF:

0.000107

AC:

AN:

111672

Hom.:

Cov.:

AF XY:

0.000118

AC XY:

AN XY:

33826

show subpopulations

Gnomad AFR

AF:

0.0000651

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000949

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000333

AC:

AN:

180387

Hom.:

AF XY:

0.0000450

AC XY:

AN XY:

66683

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000220

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:

0.0000109

AC:

AN:

1097833

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

363343

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000227

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:

0.00

Gnomad4 OTH exome

AF:

0.0000868

GnomAD4 genome

AF:

0.000107

AC:

AN:

111672

Hom.:

Cov.:

AF XY:

0.000118

AC XY:

AN XY:

33826

show subpopulations

Gnomad4 AFR

AF:

0.0000651

Gnomad4 AMR

AF:

0.000949

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000340

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 15, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1226A>G (p.D409G) alteration is located in exon 6 (coding exon 5) of the HS6ST2 gene. This alteration results from a A to G substitution at nucleotide position 1226, causing the aspartic acid (D) at amino acid position 409 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

Pathogenic

0.91

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Pathogenic

0.38

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.62

D;.;.;D;.

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.99

.;.;D;D;D

M_CAP

Pathogenic

0.81

MetaRNN

Pathogenic

0.78

D;D;D;D;D

MetaSVM

Uncertain

-0.066

MutationAssessor

Benign

1.7

L;.;.;L;.

PrimateAI

Uncertain

0.78

PROVEAN

Pathogenic

-4.6

D;D;.;.;.

REVEL

Pathogenic

0.79

Sift

Benign

0.092

T;T;.;.;.

Sift4G

Benign

0.090

T;T;T;T;.

Polyphen

1.0

D;.;.;D;.

Vest4

0.73

MutPred

0.68

Gain of relative solvent accessibility (P = 0.09);.;.;Gain of relative solvent accessibility (P = 0.09);.;

MVP

0.84

MPC

1.8

ClinPred

0.39

GERP RS

5.9

Varity_R

0.78

gMVP

0.91

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