rs3744336

Variant names:

• chr17-13601372-T-A
• rs3744336
• NM_006042.3:c.-243A>T

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_Moderate BA1

The NM_006042.3(HS3ST3A1):​c.-243A>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0177 in 471,604 control chromosomes in the GnomAD database, including 303 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 0.012 (74 hom., cov: 33)
  • Exomes 𝑓: 0.020 (229 hom.)
• Consequence: HS3ST3A1 NM_006042.3 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.51
• Publications: 2 publications found

Genes affected

HS3ST3A1 (HGNC:5196): (heparan sulfate-glucosamine 3-sulfotransferase 3A1) Heparan sulfate biosynthetic enzymes are key components in generating a myriad of distinct heparan sulfate fine structures that carry out multiple biologic activities. The enzyme encoded by this gene is a member of the heparan sulfate biosynthetic enzyme family. It is a type II integral membrane protein and possesses heparan sulfate glucosaminyl 3-O-sulfotransferase activity. The sulfotransferase domain of this enzyme is highly similar to the same domain of heparan sulfate D-glucosaminyl 3-O-sulfotransferase 3B1, and these two enzymes sulfate an identical disaccharide. This gene is widely expressed, with the most abundant expression in liver and placenta. [provided by RefSeq, Dec 2014]

ACMG classification

Our verdict: Benign. The variant received -10 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.38).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.118 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006042.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HS3ST3A1	NM_006042.3	MANE Select	c.-243A>T		5_prime_UTR	Exon 1 of 2	NP_006033.1	Q9Y663

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HS3ST3A1	ENST00000284110.2	TSL:1 MANE Select	c.-243A>T		5_prime_UTR	Exon 1 of 2	ENSP00000284110.1	Q9Y663

Frequencies

GnomAD3 genomes AF: 0.0123 AC: 1870 AN: 152150 Hom.: 74 Cov.: 33

Gnomad AFR AF: 0.00265

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00425

Gnomad ASJ AF: 0.00346

Gnomad EAS AF: 0.126

Gnomad SAS AF: 0.0639

Gnomad FIN AF: 0.0193

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.00722

Gnomad OTH AF: 0.0134

GnomAD4 exome AF: 0.0203 AC: 6489 AN: 319336 Hom.: 229 Cov.: 0 AF XY: 0.0213 AC XY: 3533 AN XY: 166084

African (AFR) AF: 0.00302 AC: 21 AN: 6964

American (AMR) AF: 0.00357 AC: 28 AN: 7854

Ashkenazi Jewish (ASJ) AF: 0.00431 AC: 45 AN: 10434

East Asian (EAS) AF: 0.116 AC: 2561 AN: 22006

South Asian (SAS) AF: 0.0549 AC: 1231 AN: 22430

European-Finnish (FIN) AF: 0.0242 AC: 612 AN: 25284

Middle Eastern (MID) AF: 0.00960 AC: 15 AN: 1562

European-Non Finnish (NFE) AF: 0.00778 AC: 1580 AN: 202980

Other (OTH) AF: 0.0200 AC: 396 AN: 19822

GnomAD4 genome AF: 0.0123 AC: 1872 AN: 152268 Hom.: 74 Cov.: 33 AF XY: 0.0138 AC XY: 1031 AN XY: 74456

African (AFR) AF: 0.00265 AC: 110 AN: 41584

American (AMR) AF: 0.00425 AC: 65 AN: 15308

Ashkenazi Jewish (ASJ) AF: 0.00346 AC: 12 AN: 3468

East Asian (EAS) AF: 0.126 AC: 648 AN: 5132

South Asian (SAS) AF: 0.0642 AC: 310 AN: 4832

European-Finnish (FIN) AF: 0.0193 AC: 205 AN: 10620

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.00722 AC: 491 AN: 68004

Other (OTH) AF: 0.0142 AC: 30 AN: 2114

Alfa AF: 0.00868 Hom.: 4

Bravo AF: 0.00909

Asia WGS AF: 0.0980 AC: 338 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.38
CADD	Benign	18
DANN	Benign	0.89
PhyloP100		2.5
Mutation Taster		=299/1	polymorphism (auto)

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

Other links and lift over

dbSNP: rs3744336; hg19: chr17-13504689;