NM_003773.5:c.168C>A

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_003773.5(HYAL2):c.168C>A(p.Asp56Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,854 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 (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

HYAL2
NM_003773.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.12

Variant links:

Genes affected

HYAL2 (HGNC:5321): (hyaluronidase 2) This gene encodes a weak acid-active hyaluronidase. The encoded protein is similar in structure to other more active hyaluronidases. Hyaluronidases degrade hyaluronan, one of the major glycosaminoglycans of the extracellular matrix. Hyaluronan and fragments of hyaluronan are thought to be involved in cell proliferation, migration and differentiation. Although it was previously thought to be a lysosomal hyaluronidase that is active at a pH below 4, the encoded protein is likely a GPI-anchored cell surface protein. This hyaluronidase serves as a receptor for the oncogenic virus Jaagsiekte sheep retrovirus. The gene is one of several related genes in a region of chromosome 3p21.3 associated with tumor suppression. This gene encodes two alternatively spliced transcript variants which differ only in the 5' UTR.[provided by RefSeq, Mar 2010]

HYAL2 links:

TUSC2 (HGNC:17034): (tumor suppressor 2, mitochondrial calcium regulator) Predicted to be involved in inflammatory response and regulation of mitochondrial membrane potential. Predicted to act upstream of or within several processes, including natural killer cell differentiation; neutrophil-mediated killing of gram-negative bacterium; and regulation of cytokine production. Predicted to be active in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

TUSC2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.41523024).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HYAL2	NM_003773.5 link	c.168C>A	p.Asp56Glu	missense_variant	Exon 2 of 4	ENST00000357750.9	NP_003764.3	Q12891
HYAL2	NM_033158.5 link	c.168C>A	p.Asp56Glu	missense_variant	Exon 3 of 5		NP_149348.2	Q12891
HYAL2	XM_005265524.3 link	c.168C>A	p.Asp56Glu	missense_variant	Exon 3 of 5		XP_005265581.1	Q12891
HYAL2	XM_005265525.3 link	c.168C>A	p.Asp56Glu	missense_variant	Exon 2 of 4		XP_005265582.1	Q12891

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HYAL2	ENST00000357750.9 link	c.168C>A	p.Asp56Glu	missense_variant	Exon 2 of 4	1	NM_003773.5	ENSP00000350387.4		Q12891

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152250

Hom.:

Cov.:

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:

0.00000399

AC:

AN:

250660

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135676

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:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000753

AC:

AN:

1461604

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727094

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:

0.00000989

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74378

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

Alfa

AF:

0.0000413

Hom.:

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Mar 01, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.168C>A (p.D56E) alteration is located in exon 3 (coding exon 1) of the HYAL2 gene. This alteration results from a C to A substitution at nucleotide position 168, causing the aspartic acid (D) at amino acid position 56 to be replaced by a glutamic acid (E). 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

0.21

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.52

D;D;D;D;.;.;.;.

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.67

.;.;.;T;T;T;T;T

M_CAP

Benign

0.0089

MetaRNN

Benign

0.42

T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

2.9

M;M;M;M;.;.;.;.

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-1.9

N;N;N;N;N;N;N;N

REVEL

Benign

0.12

Sift

Uncertain

0.012

D;D;D;D;D;D;D;D

Sift4G

Uncertain

0.036

D;D;D;D;T;.;.;.

Polyphen

0.83

P;P;P;P;.;.;.;.

Vest4

0.25

MutPred

0.70

Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);Gain of sheet (P = 0.0827);

MVP

0.41

MPC

0.48

ClinPred

0.88

GERP RS

5.2

Varity_R

0.19

gMVP

0.70

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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