rs17452535

chr1-87022970-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_012262.4(HS2ST1):c.125-49964A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.136 in 152,174 control chromosomes in the GnomAD database, including 1,497 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.14 (1497 hom., cov: 32)
• Consequence: HS2ST1 NM_012262.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.394

Genes affected

HS2ST1 (HGNC:5193): (heparan sulfate 2-O-sulfotransferase 1) Heparan sulfate biosynthetic enzymes are key components in generating a myriad of distinct heparan sulfate fine structures that carry out multiple biologic activities. This gene encodes a member of the heparan sulfate biosynthetic enzyme family that transfers sulfate to the 2 position of the iduronic acid residue of heparan sulfate. The disruption of this gene resulted in no kidney formation in knockout embryonic mice, indicating that the absence of this enzyme may interfere with the signaling required for kidney formation. Two alternatively spliced transcript variants that encode different proteins have been found for this gene. [provided by RefSeq, Aug 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.95).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.175 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HS2ST1	NM_012262.4	c.125-49964A>G		intron_variant		ENST00000370550.10
HS2ST1	NM_001134492.2	c.125-49964A>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HS2ST1	ENST00000370550.10	c.125-49964A>G		intron_variant		1	NM_012262.4	P1

Frequencies

GnomAD3 genomes AF: 0.136 AC: 20711 AN: 152056 Hom.: 1493 Cov.: 32

Gnomad AFR AF: 0.178

Gnomad AMI AF: 0.125

Gnomad AMR AF: 0.101

Gnomad ASJ AF: 0.0762

Gnomad EAS AF: 0.0260

Gnomad SAS AF: 0.123

Gnomad FIN AF: 0.0999

Gnomad MID AF: 0.0918

Gnomad NFE AF: 0.137

Gnomad OTH AF: 0.123

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.136 AC: 20741 AN: 152174 Hom.: 1497 Cov.: 32 AF XY: 0.134 AC XY: 9959 AN XY: 74396

Gnomad4 AFR AF: 0.178

Gnomad4 AMR AF: 0.102

Gnomad4 ASJ AF: 0.0762

Gnomad4 EAS AF: 0.0262

Gnomad4 SAS AF: 0.123

Gnomad4 FIN AF: 0.0999

Gnomad4 NFE AF: 0.137

Gnomad4 OTH AF: 0.124

Alfa AF: 0.136 Hom.: 875

Bravo AF: 0.138

Asia WGS AF: 0.112 AC: 388 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.95
Cadd	Benign	0.73
Dann	Benign	0.54

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: rs17452535; hg19: chr1-87488653;