A strategy for dissecting the architectures of native macromolecular assemblies.

Shi, Yi; Pellarin, Riccardo; Fridy, Peter C; Fernandez-Martinez, Javier; Thompson, Mary K; Li, Yinyin; Wang, Qing Jun; Sali, Andrej et al. · Nat Methods · 2015

basic_science · Level V

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Abstract

It remains particularly problematic to define the structures of native macromolecular assemblies, which are often of low abundance. Here we present a strategy for isolating complexes at endogenous levels from GFP-tagged transgenic cell lines. Using cross-linking mass spectrometry, we extracted distance restraints that allowed us to model the complexes' molecular architectures.

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