chr17-13600727-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006042.3(HS3ST3A1):​c.403G>A​(p.Glu135Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000842 in 1,544,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000043 ( 0 hom. )

Consequence

HS3ST3A1
NM_006042.3 missense

Scores

1
1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.63
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.02113396).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HS3ST3A1NM_006042.3 linkuse as main transcriptc.403G>A p.Glu135Lys missense_variant 1/2 ENST00000284110.2
HS3ST3A1XM_017025480.3 linkuse as main transcriptc.403G>A p.Glu135Lys missense_variant 1/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HS3ST3A1ENST00000284110.2 linkuse as main transcriptc.403G>A p.Glu135Lys missense_variant 1/21 NM_006042.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000283
AC:
4
AN:
141238
Hom.:
0
AF XY:
0.0000127
AC XY:
1
AN XY:
78580
show subpopulations
Gnomad AFR exome
AF:
0.000704
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.00000431
AC:
6
AN:
1392524
Hom.:
0
Cov.:
31
AF XY:
0.00000290
AC XY:
2
AN XY:
688802
show subpopulations
Gnomad4 AFR exome
AF:
0.000196
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152322
Hom.:
0
Cov.:
33
AF XY:
0.0000671
AC XY:
5
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.000168
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000357
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 09, 2021The c.403G>A (p.E135K) alteration is located in exon 1 (coding exon 1) of the HS3ST3A1 gene. This alteration results from a G to A substitution at nucleotide position 403, causing the glutamic acid (E) at amino acid position 135 to be replaced by a lysine (K). 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
0.095
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.59
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.011
T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.42
FATHMM_MKL
Benign
0.38
N
LIST_S2
Benign
0.68
T
M_CAP
Benign
0.038
D
MetaRNN
Benign
0.021
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.81
L
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
-0.31
N
REVEL
Benign
0.061
Sift
Benign
0.49
T
Sift4G
Benign
0.85
T
Polyphen
0.065
B
Vest4
0.23
MutPred
0.26
Gain of ubiquitination at E135 (P = 0.0022);
MVP
0.014
ClinPred
0.038
T
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.13
gMVP
0.45

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.

Other links and lift over

dbSNP: rs770713623; hg19: chr17-13504044; COSMIC: COSV52372925; API