| Gene Symbol | BETAIIISPECTRIN |
| Aliases | BETAIIISPECTRIN |
| Subcellular Localization | </th><td>Cytoskeleton, plasma membrane</td></tr> |
| N-terminal actin-binding domain | Binds to junctional complexes |
| Spectrin repeat region | 17 spectrin repeats (α-helical) |
| PH domain | Phosphoinositide binding |
| C-terminal domain | Dimerization and membrane association |
| Spectrin repeats | 17-20 triple-helical repeats |
| EF-hand calcium-binding motifs | Regulation of stability |
| Ankyrin-binding site | Membrane anchoring |
| Phosphorylation sites | Multiple regulatory sites |
| Membrane skeleton | Stabilizes plasma membrane |
| Protein anchoring | Links membrane proteins to actin |
| Synapse organization | Maintains postsynaptic density |
| Organelle trafficking | Vesicular transport support |
| Databases | GeneCardsUniProtNCBI GeneHPASTRING |
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