Genetic Variant HS3ST6:p.Arg224Cys (chr16-1911949-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_001009606.4(HS3ST6):c.670C>T(p.Arg224Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000886 in 1,580,378 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: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000070 ( 0 hom. )

Consequence

HS3ST6
NM_001009606.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.49

Variant links:

Genes affected

HS3ST6 (HGNC:14178): (heparan sulfate-glucosamine 3-sulfotransferase 6) Predicted to enable [heparan sulfate]-glucosamine 3-sulfotransferase 1 activity. Predicted to be involved in glycosaminoglycan biosynthetic process. Predicted to act upstream of or within blastocyst hatching. Predicted to be located in Golgi membrane. [provided by Alliance of Genome Resources, Apr 2022]

HS3ST6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.884

BS2

High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HS3ST6	NM_001009606.4 link	c.670C>T	p.Arg224Cys	missense_variant	Exon 2 of 2	ENST00000454677.3	NP_001009606.3	Q96QI5
HS3ST6	XM_011522608.3 link	c.295C>T	p.Arg99Cys	missense_variant	Exon 2 of 2		XP_011520910.1
HS3ST6	XM_011522609.2 link	c.250C>T	p.Arg84Cys	missense_variant	Exon 2 of 2		XP_011520911.1
HS3ST6	XM_047434487.1 link	c.250C>T	p.Arg84Cys	missense_variant	Exon 2 of 2		XP_047290443.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HS3ST6	ENST00000454677.3 link	c.670C>T	p.Arg224Cys	missense_variant	Exon 2 of 2	1	NM_001009606.4	ENSP00000416741.3		Q96QI5

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000276

AC:

AN:

217544

Hom.:

AF XY:

0.0000427

AC XY:

AN XY:

117220

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000165

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000413

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000700

AC:

AN:

1428010

Hom.:

Cov.:

AF XY:

0.00000849

AC XY:

AN XY:

706510

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000970

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000124

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000274

Gnomad4 OTH exome

AF:

0.0000340

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152368

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74508

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000453

ExAC

AF:

0.0000332

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 01, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.577C>T (p.R193C) alteration is located in exon 2 (coding exon 2) of the HS3ST6 gene. This alteration results from a C to T substitution at nucleotide position 577, causing the arginine (R) at amino acid position 193 to be replaced by a cysteine (C). 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

0.27

BayesDel_addAF

Uncertain

0.095

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.42

Eigen

Pathogenic

0.73

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Uncertain

0.90

M_CAP

Uncertain

0.26

MetaRNN

Pathogenic

0.88

MetaSVM

Uncertain

0.70

MutationAssessor

Pathogenic

3.5

PrimateAI

Pathogenic

0.87

REVEL

Pathogenic

0.83

Sift4G

Uncertain

0.0050

Polyphen

1.0

Vest4

0.84

MutPred

0.69

Gain of loop (P = 0.069);

MVP

0.86

ClinPred

0.96

GERP RS

4.8

Varity_R

0.59

gMVP

0.75

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