Homo sapiens Gene: GM2A
Summary
InnateDB Gene IDBG-54334.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol GM2A
Gene Name GM2 ganglioside activator
Synonyms GM2-AP; SAP-3
Species Homo sapiens
Ensembl Gene ENSG00000196743
Encoded Proteins
GM2 ganglioside activator
GM2 ganglioside activator
GM2 ganglioside activator
Protein Structure
Useful resources Stemformatics EHFPI ImmGen
Entrez Gene
Summary This gene encodes a small glycolipid transport protein which acts as a substrate specific co-factor for the lysosomal enzyme beta-hexosaminidase A. Beta-hexosaminidase A, together with GM2 ganglioside activator, catalyzes the degradation of the ganglioside GM2, and other molecules containing terminal N-acetyl hexosamines. Mutations in this gene result in GM2-gangliosidosis type AB or the AB variant of Tay-Sachs disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2009]
Gene Information
Type Protein coding
Genomic Location Chromosome 5:151212150-151270440
Strand Forward strand
Band q33.1
Transcripts
ENST00000357164 ENSP00000349687
ENST00000523466 ENSP00000429100
ENST00000523004 ENSP00000430541
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 3 experimentally validated interaction(s) in this database.
Experimentally validated
Total 3 [view]
Protein-Protein 3 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Gene Ontology

Molecular Function
Accession GO Term
GO:0004563 beta-N-acetylhexosaminidase activity
GO:0005319 lipid transporter activity
GO:0008047 enzyme activator activity
GO:0016004 phospholipase activator activity
GO:0032428 beta-N-acetylgalactosaminidase activity
Biological Process
GO:0001573 ganglioside metabolic process
GO:0006665 sphingolipid metabolic process
GO:0006687 glycosphingolipid metabolic process
GO:0006689 ganglioside catabolic process
GO:0006869 lipid transport
GO:0007611 learning or memory
GO:0009313 oligosaccharide catabolic process
GO:0019915 lipid storage
GO:0043085 positive regulation of catalytic activity
GO:0044281 small molecule metabolic process
GO:0050877 neurological system process
GO:0050885 neuromuscular process controlling balance
GO:0051345 positive regulation of hydrolase activity
Cellular Component
GO:0005737 cytoplasm
GO:0005739 mitochondrion
GO:0005764 lysosome
GO:0005889 hydrogen:potassium-exchanging ATPase complex
GO:0009898 cytoplasmic side of plasma membrane
GO:0043202 lysosomal lumen
GO:0045179 apical cortex
GO:0070062 extracellular vesicular exosome
Orthologs
Species
Mus musculus
Bos taurus
Gene ID
Gene Order
Not yet available
Pathways
NETPATH
REACTOME
Glycosphingolipid metabolism pathway
Sphingolipid metabolism pathway
Metabolism of lipids and lipoproteins pathway
Metabolism pathway
KEGG
Lysosome pathway
INOH
PID NCI
Cross-References
SwissProt P17900
TrEMBL
UniProt Splice Variant
Entrez Gene 2760
UniGene Hs.483873 Hs.632878
RefSeq NM_000405 NM_001167607
HUGO HGNC:4367
OMIM 613109
CCDS CCDS4313
HPRD 02034
IMGT
EMBL AC008385 AF124717 AF124718 AF124719 AK312494 BC009273 CH471062 L01439 M76477 X16087 X61095 X62078
GenPept AAA35907 AAA52767 AAD25741 AAH09273 BAG35396 CAA34215 CAA43408 CAA43993 CAA43994 EAW61680 EAW61681
RNA Seq Atlas 2760