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A mass spectrometry-based hybrid method for structural modeling of protein complexes.


ABSTRACT: We describe a method that integrates data derived from different mass spectrometry (MS)-based techniques with a modeling strategy for structural characterization of protein assemblies. We encoded structural data derived from native MS, bottom-up proteomics, ion mobility-MS and chemical cross-linking MS into modeling restraints to compute the most likely structure of a protein assembly. We used the method to generate near-native models for three known structures and characterized an assembly intermediate of the proteasomal base.

SUBMITTER: Politis A 

PROVIDER: S-EPMC3972104 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature

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A mass spectrometry-based hybrid method for structural modeling of protein complexes.

Politis Argyris A   Stengel Florian F   Hall Zoe Z   Hernández Helena H   Leitner Alexander A   Walzthoeni Thomas T   Robinson Carol V CV   Aebersold Ruedi R  

Nature methods 20140209 4


We describe a method that integrates data derived from different mass spectrometry (MS)-based techniques with a modeling strategy for structural characterization of protein assemblies. We encoded structural data derived from native MS, bottom-up proteomics, ion mobility-MS and chemical cross-linking MS into modeling restraints to compute the most likely structure of a protein assembly. We used the method to generate near-native models for three known structures and characterized an assembly inte  ...[more]

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