The 270 kDa splice variant of erythrocyte beta-spectrin (beta I sigma 2) segregates in vivo and in vitro to specific domains of cerebellar neurons.
Malchiodi-Albedi F, Ceccarini M, Winkelmann J, Morrow J, Petrucci T. The 270 kDa splice variant of erythrocyte beta-spectrin (beta I sigma 2) segregates in vivo and in vitro to specific domains of cerebellar neurons. Journal Of Cell Science 1993, 106 ( Pt 1): 67-78. PMID: 8270644, DOI: 10.1242/jcs.106.1.67.Peer-Reviewed Original ResearchConceptsBeta IPostsynaptic densityMultiple alternative transcriptsBeta-spectrin isoformBeta-spectrin genePlasma membrane stainingAlpha beta heterodimersNon-erythroid alpha-spectrinRegion of alphaCerebellar granule cellsDistinct genesPrecise segregationSubstantial homologyBiochemical restrictionsSingle protein bandAlternative transcriptsDistinct cytoplasmicUnique sequencesCerebellar neuronsSpectrin isoformsBeta heterodimerAlpha-spectrinSpectrin complexSplice variantsTargeting mechanism