10-98459584-C-T

Position:

chr10-98459584-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The NM_021828.5(HPSE2):c.1769G>A(p.Arg590His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000836 in 1,614,074 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R590S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000075 ( 0 hom. )

Consequence

HPSE2
NM_021828.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.39

Variant links:

Genes affected

HPSE2 (HGNC:18374): (heparanase 2 (inactive)) This gene encodes a heparanase enzyme. The encoded protein is a endoglycosidase that degrades heparin sulfate proteoglycans located on the extracellular matrix and cell surface. This protein may be involved in biological processes involving remodeling of the extracellular matrix including angiogenesis and tumor progression. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

HPSE2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12407276).

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.0000746 (109/1461868) while in subpopulation EAS AF= 0.000579 (23/39700). AF 95% confidence interval is 0.000396. There are 0 homozygotes in gnomad4_exome. There are 58 alleles in male gnomad4_exome subpopulation. Median coverage is 46. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HPSE2	NM_021828.5 linkuse as main transcript	c.1769G>A	p.Arg590His	missense_variant	12/12	ENST00000370552.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HPSE2	ENST00000370552.8 linkuse as main transcript	c.1769G>A	p.Arg590His	missense_variant	12/12	1	NM_021828.5	P1	Q8WWQ2-1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152088

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000580

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000956

AC:

AN:

251122

Hom.:

AF XY:

0.0000810

AC XY:

AN XY:

135840

show subpopulations

Gnomad AFR exome

AF:

0.000372

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000653

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000746

AC:

109

AN:

1461868

Hom.:

Cov.:

AF XY:

0.0000798

AC XY:

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000579

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000459

Gnomad4 OTH exome

AF:

0.000480

GnomAD4 genome

AF:

0.000171

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74424

show subpopulations

Gnomad4 AFR

AF:

0.000337

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000581

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000184

Hom.:

Bravo

AF:

0.000185

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000115

AC:

Asia WGS

AF:

0.00202

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 28, 2022

The c.1769G>A (p.R590H) alteration is located in exon 12 (coding exon 12) of the HPSE2 gene. This alteration results from a G to A substitution at nucleotide position 1769, causing the arginine (R) at amino acid position 590 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 21, 2022

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 590 of the HPSE2 protein (p.Arg590His). This variant is present in population databases (rs138098027, gnomAD 0.07%). This missense change has been observed in individual(s) with HPSE2-related conditions (PMID: 25145936). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.30

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.25

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.27

.;T;.;.

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.92

D;D;D;D

M_CAP

Benign

0.052

MetaRNN

Benign

0.12

T;T;T;T

MetaSVM

Benign

-0.57

MutationAssessor

Benign

1.9

.;L;.;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-1.4

.;N;N;.

REVEL

Benign

0.17

Sift

Uncertain

0.0030

.;D;D;.

Sift4G

Uncertain

0.0070

D;D;D;D

Polyphen

1.0, 0.0030

.;D;D;B

Vest4

0.57, 0.55, 0.69

MVP

0.25

MPC

0.76

ClinPred

0.12

GERP RS

4.4

Varity_R

0.27

gMVP

0.59

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over