6-114058053-C-T

Variant summary

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

The NM_153612.4(HS3ST5):c.245G>A(p.Arg82His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,880 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: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: HS3ST5 NM_153612.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.958

Genes affected

HS3ST5 (HGNC:19419): (heparan sulfate-glucosamine 3-sulfotransferase 5) HS3ST5 belongs to a group of heparan sulfate 3-O-sulfotransferases (EC 2.8.2.23) that transfer sulfate from 3-prime-phosphoadenosine 5-prime phosphosulfate (PAPS) to heparan sulfate and heparin (Mochizuki et al., 2003 [PubMed 12740361]).[supplied by OMIM, Mar 2008]

HDAC2-AS2 (HGNC:43590): (HDAC2 and HS3ST5 antisense RNA 2)

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=0.17407829).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HS3ST5	NM_153612.4	c.245G>A	p.Arg82His	missense_variant	5/5	ENST00000312719.10
HDAC2-AS2	NR_125845.1	n.1311-30884C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HS3ST5	ENST00000312719.10	c.245G>A	p.Arg82His	missense_variant	5/5	2	NM_153612.4	P1
HDAC2-AS2	ENST00000519104.5	n.1311-30884C>T		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000796 AC: 2 AN: 251294 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135806

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

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: 0.00000205 AC: 3 AN: 1461880 Hom.: 0 Cov.: 33 AF XY: 0.00000413 AC XY: 3 AN XY: 727240

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: 0.00000270

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

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

Feb 07, 2023

The c.245G>A (p.R82H) alteration is located in exon 2 (coding exon 2) of the HS3ST5 gene. This alteration results from a G to A substitution at nucleotide position 245, causing the arginine (R) at amino acid position 82 to be replaced by a histidine (H). 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	0.075
BayesDel_addAF	Benign	-0.34	T
BayesDel_noAF	Benign	-0.56
Cadd	Benign	15
Dann	Uncertain	0.98
DEOGEN2	Benign	0.0083	T;T
Eigen	Benign	0.15
Eigen_PC	Benign	0.13
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Benign	0.82	T;.
M_CAP	Benign	0.0076	T
MetaRNN	Benign	0.17	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.55	N;N
MutationTaster	Benign	0.99	D;D
PrimateAI	Benign	0.29	T
PROVEAN	Benign	0.64	N;N
REVEL	Benign	0.15
Sift	Benign	0.24	T;T
Sift4G	Benign	0.28	T;T
Polyphen		0.99	D;D
Vest4		0.075
MutPred		0.48		Loss of MoRF binding (P = 0.0125);Loss of MoRF binding (P = 0.0125);
MVP		0.30
MPC		0.28
ClinPred		0.57	D
GERP RS		1.4
Varity_R		0.025
gMVP		0.49

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

Other links and lift over

dbSNP: rs748083027; hg19: chr6-114379217; COSMIC: COSV100451241;