rs138951582

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_033159.4(HYAL1):c.745C>T(p.Pro249Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00084 in 1,614,154 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. P249P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00097 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00083 ( 15 hom. )

Consequence

HYAL1
NM_033159.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.461

Publications

6 publications found

Variant links:

Genes affected

HYAL1 (HGNC:5320): (hyaluronidase 1) This gene encodes a lysosomal hyaluronidase. Hyaluronidases intracellularly degrade hyaluronan, one of the major glycosaminoglycans of the extracellular matrix. Hyaluronan is thought to be involved in cell proliferation, migration and differentiation. This enzyme is active at an acidic pH and is the major hyaluronidase in plasma. Mutations in this gene are associated with mucopolysaccharidosis type IX, or hyaluronidase deficiency. The gene is one of several related genes in a region of chromosome 3p21.3 associated with tumor suppression. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

HYAL1 Gene-Disease associations (from GenCC):

mucopolysaccharidosis type 9
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: G2P, Ambry Genetics, Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet

HYAL1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0040212274).

BP6

Variant 3-50302212-G-A is Benign according to our data. Variant chr3-50302212-G-A is described in ClinVar as Benign. ClinVar VariationId is 532194.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000971 (148/152352) while in subpopulation EAS AF = 0.0168 (87/5182). AF 95% confidence interval is 0.0139. There are 1 homozygotes in GnomAd4. There are 90 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 15 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HYAL1	NM_033159.4 link	c.745C>T	p.Pro249Ser	missense_variant	Exon 2 of 4	ENST00000395144.7	NP_149349.2	Q12794-1A0A024R2X3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HYAL1	ENST00000395144.7 link	c.745C>T	p.Pro249Ser	missense_variant	Exon 2 of 4	1	NM_033159.4	ENSP00000378576.2		Q12794-1

Frequencies

GnomAD3 genomes

AF:

0.000992

AC:

151

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000555

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0171

Gnomad SAS

AF:

0.00537

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.000957

GnomAD2 exomes

AF:

0.00194

AC:

488

AN:

251240

AF XY:

0.00199

show subpopulations

Gnomad AFR exome

AF:

0.000862

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.0172

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000132

Gnomad OTH exome

AF:

0.00147

GnomAD4 exome

AF:

0.000826

AC:

1208

AN:

1461802

Hom.:

Cov.:

AF XY:

0.000919

AC XY:

668

AN XY:

727192

show subpopulations

African (AFR)

AF:

0.000926

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0144

AC:

570

AN:

39700

South Asian (SAS)

AF:

0.00427

AC:

368

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53332

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000962

AC:

107

AN:

1112010

Other (OTH)

AF:

0.00215

AC:

130

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

104

208

312

416

520

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

110

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000971

AC:

148

AN:

152352

Hom.:

Cov.:

AF XY:

0.00121

AC XY:

AN XY:

74506

show subpopulations

African (AFR)

AF:

0.000529

AC:

AN:

41590

American (AMR)

AF:

0.000131

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.0168

AC:

AN:

5182

South Asian (SAS)

AF:

0.00538

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68034

Other (OTH)

AF:

0.000947

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000686

Hom.:

Bravo

AF:

0.000805

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00193

AC:

234

Asia WGS

AF:

0.0110

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Deficiency of hyaluronoglucosaminidase

Benign:2

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

HYAL1-related disorder

Benign:1

Sep 25, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.57

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.27

T;T;T;T;.;.

Eigen

Benign

-0.29

Eigen_PC

Benign

-0.30

FATHMM_MKL

Benign

0.68

LIST_S2

Benign

0.78

.;.;T;.;T;T

MetaRNN

Benign

0.0040

T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.2

L;L;L;L;L;.

PhyloP100

0.46

PrimateAI

Benign

0.32

PROVEAN

Benign

-1.1

N;N;.;N;N;N

REVEL

Benign

0.033

Sift

Benign

0.22

T;T;.;T;T;T

Sift4G

Benign

0.36

T;T;T;T;T;T

Polyphen

0.96

D;D;D;D;P;.

Vest4

0.16

MVP

0.31

MPC

0.23

ClinPred

0.011

GERP RS

3.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.19

gMVP

0.58

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over