HEXB - hexosaminidase subunit beta Gene

Homo sapiens

Also known as ENC-1AS; HEL-248; HEL-S-111

Gene ID: 3074 | Gene type: protein coding

About HEXB

Cytogenetic location: 5q13.3 Genomic coordinates (GRCh38): 5:74,640,023-74,721,288 (from NCBI)

This gene has 13 transcripts (splice variants), 217 orthologues, 1 paralogue and is associated with 5 phenotypes. Ubiquitous expression in placenta (RPKM 128.3), colon (RPKM 50.8) and 25 other tissues.

Summary

Hexosaminidase B is the beta subunit of the lysosomal Enzyme beta-hexosaminidase that, together with the cofactor GM2 activator protein, catalyzes the degradation of the ganglioside GM2, and other molecules containing terminal N-acetyl hexosamines. Beta-hexosaminidase is composed of two subunits, alpha and beta, which are encoded by separate genes. Both beta-hexosaminidase alpha and beta subunits are members of family 20 of glycosyl hydrolases. Mutations in the alpha or beta subunit genes lead to an accumulation of GM2 ganglioside in neurons and neurodegenerative disorders termed the GM2 gangliosidoses. Beta subunit gene mutations lead to Sandhoff disease (GM2-gangliosidosis type II). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2014]

HEXB Products(2)

mRNA	Protein	Name
NM_000521.4	NP_000512.2	beta-hexosaminidase subunit beta isoform 1 preproprotein
NM_001292004.2	NP_001278933.1	beta-hexosaminidase subunit beta isoform 2

HEXB Protein Structure

Glycohydro_20b2

Glyco_hydro_20

0
100
200
300
400
500
556 a.a.

Protein Preferred Names

Protein Names

beta-hexosaminidase subunit beta

HCC-7

Recombinant HEXB Proteins

Cat. No.	Product Name	Accession	Purity
HY-P74890	HEXB/Hexosaminidase B Protein, Human (HEK293, His)	P07686 (A43-M556)	≥95%

Related Diseases

Diseases

Alias

Sandhoff Disease

Total Hexosaminidase Deficiency	Hexosaminidases A And B Deficiency
Sandhoff Disease, Infantile, Juvenile, And Adult Forms	Beta-Hexosaminidase-Beta-Subunit Deficiency
Gm2 Gangliosidosis, Type 2	Hexosaminidase A And B Deficiency Disease
Sandhoff-Jatzkewitz-Pilz Disease	Gm2 Gangliosidosis, Type Ii
Sandhoff Disease, Infantile Form	Sandhoff Disease, Adult Form
Sandhoff Disease, Juvenile Form	Gm2-Gangliosidosis, Type Ii
Sandhoff Jatzkewitz Disease	Type Ii Gm2 Gangliosidosis
Gm2 Gangliosidosis, 0 Variant	Gm2 Gangliosidosis 0 Variant
Hexosaminidases A And B Deficiency, Infantile Form	Infantile Gm2 Gangliosidosis 0 Variant
Adult Gm2 Gangliosidosis 0 Variant	Hexosaminidases A And B Deficiency, Adult Form
Hexosaminidases A And B Deficiency, Juvenile Form	Juvenile Gm2 Gangliosidosis 0 Variant
Gm2-Gangliosidosis 2	GM2G2
Hexosaminidase A And B Deficiency	Sd

Gm2 Gangliosidosis

Gangliosidosis Gm2

Gangliosidoses, Gm2

Gangliosidosis

Gangliosidoses

Tay-Sachs Disease

Hexosaminidase A Deficiency	TSD
Hexa Deficiency	Gm2 Gangliosidosis, Type 1
Hexosaminidase Alpha-Subunit Deficiency	Gm2-Gangliosidosis, Several Forms
Gm2-Gangliosidosis, B, B1, Ab Variant	B Variant Gm2 Gangliosidosis
Sphingolipidosis, Tay-Sachs	Gm2-Gangliosidosis, Type I
B Variant Gm2-Gangliosidosis	Hex A Pseudodeficiency
Hexa Disorders	Beta-Hexosaminidase A Deficiency
Gm2 Gangliosidosis, Type I	Gangliosidosis Gm2 , Type 1
Gm2 Gangliosidosis, B, B1 Variant	Gm2-Gangliosidosis 1
GM2G1	Gm2-Gangliosidosis B Variant
Tay-Sachs Disease Pseudo-Ab Variant	Tay-Sachs Disease Variant B1
Gangliosidoses, Gm2

Lysosomal Storage Disease

Lysosomal Storage Diseases	Disorder Of Lysosomal Enzyme
Inborn Lysosomal Enzyme Disorder	Lysosomal Storage Metabolism Disorder
Lysosomal Storage Disorder

Infectious Anterior Uveitis

Secondary Infected Iridocyclitis	Infectious Secondary Iridocyclitis
Secondary Iridocyclitis, Infectious

Gm2-Gangliosidosis, Ab Variant

Hexosaminidase Activator Deficiency	Tay-Sachs Disease, Ab Variant
Gm2 Gangliosidosis, Ab Variant	Gm2 Activator Deficiency
Tay-Sachs Disease, Variant Ab	Tay-Sachs Disease Ab Variant
Ab Variant Gm2-Gangliosidosis	Tay-Sachs Variant Ab
Ab Variant	Activator Deficiency/Gm2 Gangliosidosis
Activator-Deficient Tay-Sachs Disease	Gm2 Activator Deficiency Disease
Gm2 Gangliosidosis, Type Ab	Gm2-Gangliosidosis Ab
GM2GAB	Gm2-Gangliosidosis Ab Variant
Gangliosidosis Gm2 Ab Variant	Gm2-Gangliosidosis, Variant Ab

Motor Neuron Disease

Anterior Horn Cell Disease	Motor Neuron Diseases
Mnd - [Motor Neurone Disease]	Lou Gehrig Disease
Creeping Palsy	Creeping Paralysis
Bulbar Motor Neuron Disease	Bulbar Syndrome
Anterior Horn Cell Disorder	Hereditary Motor Neuron Disease

Mucopolysaccharidosis-Plus Syndrome

Mucopolysaccharidosis	Mucopolysaccharidosis-Like Syndrome With Congenital Heart Defects And Hematopoietic Disorders
MPSPS	Mucopolysaccharidoses
Mps	Mucopolysaccharidosis-Like Plus Disease
Disorders Of Glycosaminoglycan Metabolism

Gm1-Gangliosidosis, Type Iii

Gm1 Gangliosidosis Type 3	GM1G3
Gangliosidosis, Generalized Gm1, Type 3	Adult-Onset Gm1 Gangliosidosis
Gangliosidosis Gm1 Type 3	Gangliosidosis Generalized Gm1 Chronic Type
Gangliosidosis, Generalized Gm1, Adult Type	Gangliosidosis, Generalized Gm1, Chronic Type
Gangliosidosis, Generalized Gm1, Type Iii	Adult Gm1 Gangliosidosis
Beta-Galactosidase Deficiency Type 3	Gm1-Gangliosidosis 3
Gangliosidosis Generalized Gm1 Type 3	Gm1-Gangliosidosis Generalized Adult Type
Gangliosidosis, Gm1 Type Iii

Gallbladder Papillomatosis

Maple Syrup Urine Disease

MSUD	Bckd Deficiency
Branched-Chain Ketoaciduria	Branched-Chain Alpha-Keto Acid Dehydrogenase Deficiency
Keto Acid Decarboxylase Deficiency	Maple Syrup Urine Disease, Type Ii
Branched Chain Ketoaciduria	Classic Maple Syrup Urine Disease
Intermittent Maple Syrup Urine Disease	Maple Syrup Urine Disease, Type Ia
Ketoacidaemia	Bckdh Deficiency
Branched-Chain 2-Ketoacid Dehydrogenase Deficiency	Thiamine-Responsive Maple Syrup Urine Disease
Intermediate Maple Syrup Urine Disease	Maple Syrup Urine Disease Type 1a
Maple Syrup Urine Disease Type 1b	Maple Syrup Urine Disease Type 2
Maple Syrup Urine Disease, Type Ib	Dihydrolipoamide Dehydrogenase Deficiency
Branched-Chain Ketoacid Dehydrogenase Deficiency	Maple Syrup Disease
Ketoacidemia	Classic Bckd Deficiency
Classic Msud	Classic Branched-Chain Alpha-Ketoacid Dehydrogenase Deficiency
Classic Branched-Chain Ketoaciduria	Thiamine-Responsive Bckd Deficiency
Thiamine-Responsive Msud	Thiamine-Responsive Branched-Chain Alpha-Ketoacid Dehydrogenase Deficiency
Intermittent Bckd Deficiency	Intermittent Msud
Intermittent Branched-Chain Alpha-Ketoacid Dehydrogenase Deficiency	Maple Syrup Urine Disease 1a
MSUD1A	Maple Syrup Urine Disease Type Ia
Msud Type Ia	Maple Syrup Urine Disease 1b
MSUD1B	Maple Syrup Urine Disease Type Ib
Msud Type Ib	Maple Syrup Urine Disease 2
MSUD2	Maple Syrup Urine Disease Type Ii
Msud Type Ii	Nadh Cytochrome B5 Reductase Deficiency
Lactic Acidosis, Congenital Infantile, Due To Lad Deficiency	Ketonemia
Maple Syrup Urine Disease, Type 1b	Ketoacid Decarboxylase Deficiency
Oxoacid Decarboxylase Deficiency	Branched Chain Ketoacid Dehydrogenase Deficiency
Msud - [Maple-Syrup-Urine Disease]	Ketoaminoacidaemia
Bckd - [Branched-Chain Alpha-Ketoacid Dehydrogenase Deficiency]	Maple-Syrup-Urine Disorder
Maple-Syrup-Urine Syndrome

Sphingolipidosis

Sphingolipidoses

Gm1-Gangliosidosis, Type Ii

Gm1 Gangliosidosis Type 2	GM1G2
Gangliosidosis, Generalized Gm1, Type 2	Juvenile Gm1 Gangliosidosis
Gangliosidosis Generalized Gm1 Type 2	Gangliosidosis, Generalized Gm1, Juvenile Type
Gangliosidosis, Generalized Gm1, Type Ii	Gangliosidosis Generalized Gm1 Juvenile Type
Late-Infantile Gm1 Gangliosidosis	Gm1-Gangliosidosis 2
Gangliosidosis Generalized Gm1 Late Infantile Type	Gm1-Gangliosidosis Generalized Juvenile Type
Gangliosidosis, Gm1, Type Ii

Phenylketonuria

Phenylalanine Hydroxylase Deficiency	PKU
Pah Deficiency	Folling Disease
Maternal Phenylketonuria	Phenylketonurias
Oligophrenia Phenylpyruvica	Hyperphenylalaninemia, Non-Pku Mild
Folling'S Disease	Phenylalaninemia
Mild Phenylketonuria	Mild Pku
Variant Pku	Variant Phenylketonuria
Mpku	Deficiency Disease, Phenylalanine Hydroxylase
Phenylketonuria, Maternal	Phenylalanine Hydroxylase Deficiency Disease
Hyperphenylalaninemic Embryopathy	Maternal Pku
Maternal Hyperphenylalaninemia	Phenylketonuric Embryopathy
Hyperphenylalaninemia	HPA
Non-Phenylketonuria Hyperphenylalaninemia	NON-PKU HPA
Phenylketonuria Maternal	Classical Phenylketonuria
Hyperphenylalaninaemia	Pku - [Phenylketonuria]

Metachromatic Leukodystrophy

Arylsulfatase A Deficiency	MLD
Arsa Deficiency	Sulfatide Lipidosis
Metachromatic Leukoencephalopathy	Cerebral Sclerosis, Diffuse, Metachromatic Form
Cerebroside Sulfatase Deficiency	Leukodystrophy, Metachromatic
Pseudoarylsulfatase A Deficiency	Leukodystrophy Metachromatic
Sulfatidosis	Metachromatic Leukodystrophy, Late Infantile
Metachromatic Leukodystrophy Variant	Deficiency Of Cerebroside-Sulfatase
Scholz Cerebral Sclerosis	Sulfatide Lipoidosis
Cerebral Sclerosis Diffuse Metachromatic Form	Arylsulfatase A Deficiency Disease
Cerebroside Sulphatase Deficiency Disease	Greenfield Disease
Metachromatic Leukodystrophy, Adult	Metachromatic Leukodystrophy, Juvenile
Leukodystrophy Metachromatic Adult	Leukodystrophy Metachromatic Juvenile
Leukodystrophy Metachromatic Late Infantile	Metachromatic Leukodystrophy, Adult Type
Metachromatic Leukodystrophy, Juvenile Type	Metachromatic Leukodystrophy, Infant
Greenfield'S Disease

Diseases	Alias
Waldenstroem'S Macroglobulinemia	Waldenstroem'S Macroglobulinemia Waldenstroem'S Macroglobulinemia Macroglobulinemia Of Waldenstrom Lymphoplasmacytic Lymphoma With Igm Gammopathy Lymphoplasmacytic Lymphoma Waldenstroem'S Macroglobulinemia Waldenstroem'S Macroglobulinemia Macroglobulinemia Of Waldenstrom Lymphoplasmacytic Lymphoma With Igm Gammopathy Lymphoplasmacytic Lymphoma

Related Agents

Pre-clinical Phase

Bioactive Molecules (3)

Cat. No.	Product Name	Purity	Rare Diseases
HY-104050	M-31850	99.94%	Unkown
HY-RS06143	HEXB Human Pre-designed siRNA Set A	/	Unkown
HY-N12056	Cyclo(L-leucyl-L-valyl)	/	Unkown

Orthologs Information

Species	Symbol	Source	ID
Felis catus	HEXB	VGNC	VGNC:102224
Mus musculus	HEXB	MGD	MGI:96074
Macaca mulatta	HEXB	VGNC	VGNC:73367
Canis familiaris	HEXB	VGNC	VGNC:41669
Rattus norvegicus	HEXB	RGD	RGD:1307607
Others	HEXB	NCBI

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