a member of the synuclein family. Abundantly expressed in the brain. Inhibits phospholipase D2 selectively. May integrate presynaptic signaling and membrane trafficking. Implicated in the pathogenesis of Parkinson's disease. A major component of amyloid plaques in the brains of patients with Alzheimer's disease. Two alternatively spliced isoforms transcripts have been identified. Note: This description may include information from UniProtKB.
Molecular Function: alpha-tubulin binding; calcium ion binding; caspase inhibitor activity; copper ion binding; dynein binding; fatty acid binding; ferrous iron binding; histone binding; identical protein binding; kinesin binding; magnesium ion binding; oxidoreductase activity; phospholipid binding; phosphoprotein binding; protein binding; tau protein binding; zinc ion binding
Biological Process: calcium ion homeostasis; caspase activation; cellular protein metabolic process; dopamine biosynthetic process; dopamine uptake; fibril organization and biogenesis; microglial cell activation; negative regulation of apoptosis; negative regulation of caspase activity; negative regulation of dopamine uptake; negative regulation of exocytosis; negative regulation of histone acetylation; negative regulation of microtubule polymerization; negative regulation of monooxygenase activity; negative regulation of norepinephrine uptake; negative regulation of serotonin uptake; negative regulation of transcription from RNA polymerase II promoter; negative regulation of transporter activity; positive regulation of apoptosis; positive regulation of endocytosis; positive regulation of peptidyl-serine phosphorylation; positive regulation of receptor recycling; positive regulation of release of sequestered calcium ion into cytosol; protein destabilization; receptor internalization; regulation of dopamine secretion; response to iron(II) ion; response to lipopolysaccharide; response to magnesium ion; synaptic vesicle endocytosis