Degradation pathway of sphingolipids, including diseases (Homo sapiens)
From WikiPathways
Description
The degradation of SphingoLipids (SLs) occurs through a series of specific hydrolases in the lysosome, after the compounds have been transported via the endosomal pathway. Disorders resulting from an enzyme defect are highlighted in pink. Hydrolase defects result in accumulation and lysosomal storage of substrates, leading to cell pathology.
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Bibliography
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- Rafael J Tamargo, Arash Velayati, Ehud Goldin, Ellen Sidransky; ''The role of saposin C in Gaucher disease''; Mol Genet Metab., 2012 PubMed Europe PMC Scholia
- Novak A, Callahan JW, Lowden JA; ''Classification of disorders of GM2 ganglioside hydrolysis using 3H-GM2 as substrate.''; Biochim Biophys Acta, 1994 PubMed Europe PMC Scholia
- Knapp S, Vocadlo D, Gao Z, Kirk B, Lou J, Withers SG; ''NAG-thiazoline, an N-acetylbeta-hexosaminidase inhibitor that implicates acetamido participation''; J. Am. Chem. Soc.; doi:10.1021/ja960826u, 1996 DOI Scholia
- Hou Y, McInnes B, Hinek A, Karpati G, Mahuran D; ''A Pro504 --> Ser substitution in the beta-subunit of beta-hexosaminidase A inhibits alpha-subunit hydrolysis of GM2 ganglioside, resulting in chronic Sandhoff disease.''; J Biol Chem, 1998 PubMed Europe PMC Scholia
- Blau, Nenad, Duran, Marinus, Gibson, K. Michael, Dionisi-Vici, Carlo; ''Physician's Guide to the Diagnosis, Treatment, and Follow-Up of Inherited Metabolic Diseases''; Springer, DOI: 10.1007/978-3-642-40337-8, 2014 (ed.1)
- Amado M, Almeida R, Carneiro F, Levery SB, Holmes EH, Nomoto M, Hollingsworth MA, Hassan H, Schwientek T, Nielsen PA, Bennett EP, Clausen H; ''A family of human beta3-galactosyltransferases. Characterization of four members of a UDP-galactose:beta-N-acetyl-glucosamine/beta-nacetyl-galactosamine beta-1,3-galactosyltransferase family.''; J Biol Chem, 1998 PubMed Europe PMC Scholia
- Hou Y, Tse R, Mahuran DJ; ''Direct determination of the substrate specificity of the alpha-active site in heterodimeric beta-hexosaminidase A.''; Biochemistry, 1996 PubMed Europe PMC Scholia
- Thomas Kolter, Konrad Sandhoff; ''Sphingolipid metabolism diseases''; Biochim Biophys Acta . , 2006 PubMed Europe PMC Scholia
- Thomas Kolter, Richard L Proia, Konrad Sandhoff; ''Combinatorial ganglioside biosynthesis''; J Biol Chem . , 2002 PubMed Europe PMC Scholia
- Heike Schulze, Thomas Kolter, Konrad Sandhoff; ''Principles of lysosomal membrane degradation: Cellular topology and biochemistry of lysosomal lipid degradation''; Biochim Biophys Acta ., 2009 PubMed Europe PMC Scholia
History
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External references
DataNodes
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Name | Type | Database reference | Comment |
---|---|---|---|
Ceramide | Metabolite | CHEBI:7242 (ChEBI) | |
Fabry | 301500 (OMIM) | DISEASE (datasource is OMIM) | |
Farber | 228000 (OMIM) | DISEASE (datasource is OMIM) | |
GA1 | Metabolite | CHEBI:27938 (ChEBI) | ganglioside GA1 |
GA2 | Metabolite | CHEBI:5208 (ChEBI) | ganglioside GA2 |
GLB1 | GeneProduct | ENSG00000170266 (Ensembl) | GM1-beta-galactosidase 1 |
GM1-beta-galactosidase (GLB) | Protein | 3.2.1.23 (Enzyme Nomenclature) | |
GM1-beta-galactosidease (GLB) | Protein | 3.2.1.23 (Enzyme Nomenclature) | |
GM1-gangliosidosis | 230500 (OMIM) | DISEASE (datasource is OMIM) | |
GM1a | Metabolite | CHEBI:4149 (ChEBI) | ganglioside GM1a |
GM2-activator | Protein | 2760 (Entrez Gene) | |
GM2-ganglipsidosis AB-variant | 272750 (OMIM) | DISEASE (datasource is OMIM) | |
GM2A | Protein | 2760 (Entrez Gene) | GM2-activator, acts as a substrate specific co-factor for the lysosomal enzyme β-hexosaminidase A |
GM2 | Metabolite | CHEBI:7115 (ChEBI) | ganglioside GM2 |
GM3 | Metabolite | CHEBI:5227 (ChEBI) | ganglioside GM3 |
GalCer-beta-galactosidase | Protein | EC 3.2.1.46 (Enzyme Nomenclature) | GALCERase |
Gaucher | 230800 (OMIM) | DISEASE (datasource is OMIM) | |
Globoside example 1 | Metabolite | CHEBI:88167 (ChEBI) | N-acetyl-β-D-galactosaminyl-(1→3)-α-D-galactosyl-(1→4)-β-D-galactosyl-(1→4)-β-D-glucosyl-(1�1ʼ)-ceramide |
Globoside example 2 | Metabolite | CHEBI:18259 (ChEBI) | N-acetyl-β-D-galactosaminyl-(1→3)-α-D-galactosyl-(1→4)-β-D-galactosyl-(1→4)-β-D-glucosylceramide |
Globoside | Metabolite | CHEBI:61360 (ChEBI) | |
HEXA | Protein | ENSG00000213614 (Ensembl Human) | |
HEXB | Protein | CHEMBL5877 (ChEMBL compound) | |
Krabbe | 245200 (OMIM) | DISEASE (datasource is OMIM) | |
Metachromatic leukodystrophy | DISEASE (datasource is OMIM) | ||
Niemann-Pick A | 257200 (OMIM) | DISEASE (datasource is OMIM) | |
Niemann-Pick B | 607616 (OMIM) | DISEASE (datasource is OMIM) | |
Sandhoff | 268800 (OMIM) | DISEASE (datasource is OMIM) | |
Sap-A | Protein | IPR003119 (InterPro) | |
Sap-B | Protein | IPR008139 (InterPro) | |
Sap-C | Protein | ||
Sialidosis | DISEASE (datasource is OMIM) | ||
Sphingomyelin | Metabolite | Q423143 (Wikidata) | |
Sphingosine | Metabolite | Q46298 (Wikidata) | |
Sulfatide | Metabolite | Q408584 (Wikidata) | |
Tay-Sachs | 272800 (OMIM) | DISEASE (datasource is OMIM) | |
acid ceramidase | Protein | 3.5.1.23 (Enzyme Nomenclature) | Acid ceramidase (N-acylsphingosine deacylase, ASAH1) |
acrylsulfatase A | Protein | ENSG00000100299 (Ensembl Human) | Arylsulfatase A (or cerebroside-sulfatase) |
alpha-galactosidase A | Protein | 2717 (Entrez Gene) | |
beta-hexosaminidase A, B | Protein | 3.2.1.52 (Enzyme Nomenclature) | |
digalactosylceramide alpha | Metabolite | CHEBI:134506 (ChEBI) | α-D-galactosyl-(1→4)-β-D-galactosyl-N-(pentacosanoyl)sphingosine |
digalactosylceramide beta | Metabolite | CHEBI:134507 (ChEBI) | |
digalactosylceramide | Metabolite | CHEBI:28811 (ChEBI) | |
galactosyl-ceramide | Metabolite | Q2756638 (Wikidata) | Galactocerebroside |
globotriaosylceramide | Metabolite | 66616222 (PubChem-compound) | also known as CD77, Gb3, and ceramide trihexoside |
glucosylceramide-beta-glucosidase | Protein | ||
glucosylceramide | Metabolite | Q35662896 (Wikidata) | |
lactosylceramide | Metabolite | Q3215908 (Wikidata) | |
sialidase 1 | Protein | Q99519 (Uniprot-SwissProt) | |
sialidase 2 | Protein | Q9Y3R4 (Uniprot-SwissProt) | |
sialidase 3 | Protein | Q9UQ49 (Uniprot-SwissProt) | |
sialidase 4 | Protein | Q8WWR8 (Uniprot-SwissProt) | |
sialidase | Protein | IPR004124 (InterPro) | |
sphingomyelinase | Protein | 3.1.4.12 (Enzyme Nomenclature) | Sphingomyelin phosphodiesterase (also known as neutral sphingomyelinase, sphingomyelinase, or SMase) |
Annotated Interactions
No annotated interactions