Protein Topology of Presenilin 1
نویسندگان
چکیده
Mutations in a gene encoding a multitransmembrane protein, termed presenilin 1 (PS1), are causative in the majority of early-onset cases of AD. To determine the topology of PS1, we utilized two strategies: first, we tested whether putative transmembranes are sufficient to export a protease-sensitive substrate across a lipid bilayer; and second, we examined the binding of antibodies to specific PS1 epitopes in cultured cells selectively permeabilized with the pore-forming toxin, streptolysin-O. We document that the "loop," N-terminal, and C-terminal domains of PS1 are oriented toward the cytoplasm.
منابع مشابه
A novel transmembrane topology of presenilin based on reconciling experimental and computational evidence.
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ورودعنوان ژورنال:
- Neuron
دوره 17 شماره
صفحات -
تاریخ انتشار 1996