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GeneBe

1-87084236-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_012262.4(HS2ST1):c.406C>G(p.Pro136Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000623 in 1,604,282 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

HS2ST1
NM_012262.4 missense

Scores

9
7
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.84
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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.89

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HS2ST1NM_012262.4 linkuse as main transcriptc.406C>G p.Pro136Ala missense_variant 3/7 ENST00000370550.10
HS2ST1NM_001134492.2 linkuse as main transcriptc.406C>G p.Pro136Ala missense_variant 3/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HS2ST1ENST00000370550.10 linkuse as main transcriptc.406C>G p.Pro136Ala missense_variant 3/71 NM_012262.4 P1Q7LGA3-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151976
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000122
AC:
3
AN:
245346
Hom.:
0
AF XY:
0.00000755
AC XY:
1
AN XY:
132530
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000178
Gnomad OTH exome
AF:
0.000169
GnomAD4 exome
AF:
0.00000620
AC:
9
AN:
1452306
Hom.:
0
Cov.:
29
AF XY:
0.00000554
AC XY:
4
AN XY:
722134
show subpopulations
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:
0.00000813
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151976
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74218
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1

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 GeneticsOct 10, 2023The c.406C>G (p.P136A) alteration is located in exon 3 (coding exon 3) of the HS2ST1 gene. This alteration results from a C to G substitution at nucleotide position 406, causing the proline (P) at amino acid position 136 to be replaced by an alanine (A). 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
Pathogenic
0.88
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.16
Cadd
Pathogenic
27
Dann
Uncertain
1.0
Eigen
Pathogenic
0.88
Eigen_PC
Pathogenic
0.87
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.93
D;D;D;D
M_CAP
Benign
0.072
D
MetaRNN
Pathogenic
0.89
D;D;D;D
MetaSVM
Uncertain
0.23
D
MutationAssessor
Uncertain
2.3
M;M;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Pathogenic
-7.7
D;D;.;D
REVEL
Pathogenic
0.74
Sift
Pathogenic
0.0
D;D;.;D
Sift4G
Uncertain
0.0090
D;D;T;T
Polyphen
1.0
.;D;.;.
Vest4
0.82
MVP
0.68
MPC
1.2, 1.0
ClinPred
0.99
D
GERP RS
5.8
Varity_R
0.76
gMVP
0.84

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: rs376591528; hg19: chr1-87549919; API