13-96091104-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_153456.4(HS6ST3):c.242G>T(p.Gly81Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000804 in 1,243,734 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 8.0e-7 (0 hom.)
• Consequence: HS6ST3 NM_153456.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.32

Genes affected

HS6ST3 (HGNC:19134): (heparan sulfate 6-O-sulfotransferase 3) Heparan sulfate (HS) sulfotransferases, such as HS6ST3, modify HS to generate structures required for interactions between HS and a variety of proteins. These interactions are implicated in proliferation and differentiation, adhesion, migration, inflammation, blood coagulation, and other diverse processes (Habuchi et al., 2000 [PubMed 10644753]).[supplied by OMIM, Mar 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18083996).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HS6ST3	NM_153456.4	c.242G>T	p.Gly81Val	missense_variant	1/2	ENST00000376705.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HS6ST3	ENST00000376705.4	c.242G>T	p.Gly81Val	missense_variant	1/2	1	NM_153456.4	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 8.04e-7 AC: 1 AN: 1243734 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 603770

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: 9.87e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 11, 2021

The c.242G>T (p.G81V) alteration is located in exon 1 (coding exon 1) of the HS6ST3 gene. This alteration results from a G to T substitution at nucleotide position 242, causing the glycine (G) at amino acid position 81 to be replaced by a valine (V). 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	0.10
BayesDel_addAF	Benign	-0.097	T
BayesDel_noAF	Benign	-0.38
Cadd	Benign	20
Dann	Benign	0.97
DEOGEN2	Benign	0.0070	T
Eigen	Benign	-0.79
Eigen_PC	Benign	-0.79
FATHMM_MKL	Benign	0.060	N
LIST_S2	Benign	0.56	T
M_CAP	Pathogenic	0.78	D
MetaRNN	Benign	0.18	T
MetaSVM	Benign	-0.70	T
MutationAssessor	Benign	0.81	L
MutationTaster	Benign	0.95	N
PrimateAI	Pathogenic	0.91	D
PROVEAN	Benign	-0.32	N
REVEL	Benign	0.11
Sift	Uncertain	0.011	D
Sift4G	Uncertain	0.011	D
Polyphen		0.028	B
Vest4		0.39
MutPred		0.28		Gain of catalytic residue at P78 (P = 0.001);
MVP		0.068
MPC		0.66
ClinPred		0.13	T
GERP RS		1.0
Varity_R		0.11
gMVP		0.30

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr13-96743358;