[Term] id: PR:000003165 name: spectrin beta subunit def: "A protein that is the beta subunit of spectrin. Spectrin is a tetrameric actin-crosslinking protein which contains two alpha and two beta subunits. Spectrins are involved in the support of general membrane integrity, stabilization of cell-cell interactions, axonal growth, normal functioning of the Golgi complex and organization of synaptic vesicles." [PIRSF:PIRSF002297] comment: Category=family. xref: PIRSF:PIRSF002297 is_a: PR:000000001 ! protein