Adult onset neurodegenerative disorder
Gene: HEXB

HEXB (hexosaminidase subunit beta)
EnsemblGeneIds (GRCh38): ENSG00000049860
EnsemblGeneIds (GRCh37): ENSG00000049860
OMIM: 606873, Gene2Phenotype
HEXB is in 14 panels

4 reviews

Tracy Lester (Genetics laboratory, Oxford UK)

Green List (high evidence)

Sandhoff disease is a progressive neurodegenerative disorder characterized by an accumulation of GM2 gangliosides, particularly in neurons, and is clinically indistinguishable from Tay-Sachs disease. A late-onset form of Sandhoff disease is rare, and its symptoms are heterogeneous: Delnooz et al escribe six new late-onset Sandhoff cases demonstrating cerebellar ataxia or lower motor neuron (LMN) involvement
Created: 2 Sep 2019, 4:06 p.m. | Last Modified: 2 Sep 2019, 4:06 p.m.

Panel Version: 1.99

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
Sandhoff disease, infantile, juvenile, and adult forms, 268800

Publications

20798201

Created: 2 Sep 2019, 4:06 p.m.
Last Modified: 2 Sep 2019, 4:06 p.m.
Panel version: 1.99

Nick Beauchamp (Sheffield Diagnostic Genetics Service)

Green List (high evidence)

Adult onset reported with ALS phenotype.
Created: 23 Jul 2019, 3:35 p.m. | Last Modified: 23 Jul 2019, 3:35 p.m.

Panel Version: 1.72

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
Sandhoff disease, infantile, juvenile, and adult forms, 268800

Publications

Variants in this GENE are reported as part of current diagnostic practice

Created: 23 Jul 2019, 3:35 p.m.
Last Modified: 23 Jul 2019, 3:35 p.m.
Panel version: 1.72

Louise Daugherty (Genomics England Curator)

I don't know

Review and rating from Tracy Lester (Oxford Medical Genetics Laboratories Oxford University Hospitals NHS Foundation Trust) on behalf of Wessex and West Midlands GLH for GMS Neurology specialist test group. All the green and amber, except for the genes with triplet repeats, were reviewed.
Created: 2 Sep 2019, 4:46 p.m. | Last Modified: 2 Sep 2019, 4:46 p.m.

Panel Version: 1.101

Review and rating submitted by Nick Beauchamp (Sheffield Diagnostic genetics Service), on behalf of Yorkshire and North East GLH for GMS Neurology specialist test group.
Created: 23 Jul 2019, 3:51 p.m. | Last Modified: 23 Jul 2019, 3:51 p.m.

Panel Version: 1.74

Review and rating submitted byJames Polke (North Bristol NHS Trust), unless specified in the review comment, on behalf of London North GLH for GMS Neurology specialist test group.
Created: 23 Apr 2019, 5:35 p.m.

Created: 23 Apr 2019, 5:35 p.m.

Panel version: 1.101

James Polke (Neurogenetics Laboratory, Institute of Neurology, London)

Green List (high evidence)

Created: 23 Apr 2019, 5:31 p.m.

Panel version: 1.10

Details

Mode of Inheritance

BIALLELIC, autosomal or pseudoautosomal

Sources

Wessex and West Midlands GLH
Yorkshire and North East GLH
NHS GMS
London North GLH
Expert Review Green

Phenotypes

Sandhoff disease, infantile, juvenile, and adult forms, OMIM:268800

OMIM

606873

Clinvar variants

Variants in HEXB

Penetrance

None

Publications

Panels with this gene

History Filter Activity

13 Dec 2021, Gel status: 3

Set Phenotypes

Arina Puzriakova (Genomics England Curator)

Phenotypes for gene: HEXB were changed from Sandhoff disease, infantile, juvenile, and adult forms, 268800 to Sandhoff disease, infantile, juvenile, and adult forms, OMIM:268800

2 Sep 2019, Gel status: 3