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GeneBe

1-87084198-G-A

Variant summary

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

The NM_012262.4(HS2ST1):c.368G>A(p.Arg123His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000126 in 1,583,526 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

HS2ST1
NM_012262.4 missense

Scores

4
8
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.91
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HS2ST1NM_012262.4 linkuse as main transcriptc.368G>A p.Arg123His missense_variant 3/7 ENST00000370550.10
HS2ST1NM_001134492.2 linkuse as main transcriptc.368G>A p.Arg123His missense_variant 3/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HS2ST1ENST00000370550.10 linkuse as main transcriptc.368G>A p.Arg123His missense_variant 3/71 NM_012262.4 P1Q7LGA3-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152036
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000966
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:
0.0000211
AC:
5
AN:
237420
Hom.:
0
AF XY:
0.0000234
AC XY:
3
AN XY:
128208
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000655
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000571
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000182
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000112
AC:
16
AN:
1431490
Hom.:
0
Cov.:
28
AF XY:
0.00000983
AC XY:
7
AN XY:
712088
show subpopulations
Gnomad4 AFR exome
AF:
0.0000309
Gnomad4 AMR exome
AF:
0.0000728
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000256
Gnomad4 SAS exome
AF:
0.0000123
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000731
Gnomad4 OTH exome
AF:
0.0000337
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152036
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.0000966
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:
0.0000282
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 28, 2022The c.368G>A (p.R123H) alteration is located in exon 3 (coding exon 3) of the HS2ST1 gene. This alteration results from a G to A substitution at nucleotide position 368, causing the arginine (R) at amino acid position 123 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
0.25
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Pathogenic
0.24
Cadd
Pathogenic
31
Dann
Uncertain
1.0
Eigen
Uncertain
0.64
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Benign
0.030
D
MetaRNN
Uncertain
0.64
D;D;D;D
MetaSVM
Benign
-0.50
T
MutationAssessor
Benign
1.8
L;L;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Uncertain
-2.6
D;D;.;D
REVEL
Uncertain
0.48
Sift
Benign
0.10
T;D;.;T
Sift4G
Uncertain
0.054
T;T;T;T
Polyphen
0.95
.;P;.;.
Vest4
0.89
MutPred
0.55
Loss of MoRF binding (P = 0.0095);Loss of MoRF binding (P = 0.0095);.;.;
MVP
0.86
MPC
0.84, 0.52
ClinPred
0.51
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.33
gMVP
0.75

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: rs774505983; hg19: chr1-87549881; COSMIC: COSV63351294; API