Function
Filament-forming cytoskeletal GTPase. May play a role in platelet secretion. Seems to participate in the process of SNARE complex formation in synaptic vesicles.; Stabilizes BACE1 protein levels and promotes the sorting and accumulation of BACE1 to the recycling or endosomal compartments, modulating the beta-amyloidogenic processing of APP.
Gene References into Functions
- SEPT8 modulates beta-amyloidogenic processing of APP through a mechanism affecting the intracellular sorting and accumulation of BACE1. PMID: 27084579
- Cloning, overexpression, purification and preliminary characterization of human septin 8. Fluorescence emission spectra, analytic gel filtration and DLS reflect the sample oligomeric heterogeneity with the predominance of dimers in solution. PMID: 20544379
- SEPT8 and SEPT4 are localized surrounding alpha-granules. Activation of platelets by agonists resulted in the translocation of SEPT4 and SEPT8 to the platelet surface indicating a possible functional role of these proteins in platelet granular secretion PMID: 15116257
- We studied the assembly of three human septins, SEPT4, SEPT5 and SEPT8, with each other (heterotypic) and with themselves (homotypic) using a yeast two-hybrid system. PMID: 15214843
- Our finding suggests a role for members of the septin family in the development of proliferative retinal membranes. PMID: 17625225
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Subcellular Location
Cytoplasm. Cytoplasm, cytoskeleton. Cell junction, synapse. Cell projection, axon. Cytoplasmic vesicle, secretory vesicle, synaptic vesicle membrane. Cell junction, synapse, presynapse.
Protein Families
TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily, Septin GTPase family
Tissue Specificity
Widely expressed, including in brain, heart and platelets; most abundant in aorta. Isoform 2 is expressed at low levels in specific brain areas, such as occipital pole, frontal lobe, temporal lobe and putamen. Isoform 1 and 3 are highly expressed in speci
