| GM2A — GM2 Activator Protein | |
|---|---|
| Protein Name | GM2 Activator Protein |
| Gene | GMM |
| UniProt | P17900 |
| Molecular Weight | 17.6 kDa |
| Subcellular Localization | Lysosome (soluble) |
| Protein Family | GM2 activator family |
| PDB Structures | 1BJ7, 1LXB |
Gm2A Protein Gm2 Activator Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
GM2A (GM2 Activator Protein) is a soluble lysosomal protein that plays an essential role in the degradation of GM2 ganglioside. It functions as a substrate-specific co-factor for hexosaminidase A, presenting GM2 ganglioside to the enzyme for hydrolysis.
GM2A is a small, soluble protein (~17.6 kDa) with a unique beta-sheet dominated fold that creates a hydrophobic cavity for lipid binding. The protein has:
GM2A's primary function is to facilitate GM2 ganglioside degradation:
Proper GM2A function ensures:
GM2A mutations cause AB variant of GM2 gangliosidosis:
While primarily caused by HEXA mutations, GM2A function is essential for disease progression.
Recent research suggests ganglioside metabolism may be relevant to AD pathogenesis.
The study of Gm2A Protein Gm2 Activator Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.