Amyloid-binding proteins: affinity-based separation, proteomic identification, and optical biosensor validation.
Methods Mol Biol 2015;
1295:465-77. [PMID:
25820741 DOI:
10.1007/978-1-4939-2550-6_33]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The amyloid-beta peptide is considered as a key player in the development and progression of Alzheimer's disease (AD). Although good evidence exists that amyloid-beta accumulates inside cells, intracellular brain amyloid-beta-binding proteins remain poorly characterized. Here we describe a protocol for affinity-based profiling of amyloid-beta-binding proteins of rat brain, their proteomic identification and validation by a surface plasmon resonance (SPR)-based analysis. It includes: (a) SPR-based selection of immobilization conditions for beta-amyloid coupling and choice of appropriate resin for preparation of an affinity sorbent; (b) immobilization of beta-amyloid on the selected resin;
Collapse