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Native Mass Spectrometry Enabled Electron Microscopy for Visual Proteomics


EMSL Project ID
50700

Abstract

Develop a soft-landing capability for native protein complexes coupled with electron microscopy (EM) to enable visual proteomics. Sample heterogeneity greatly limits the resolution of 3D structures and poses a severe bottleneck to processing image data generated by EM. To overcome this challenge, we will deposit mass selected ions of native protein complexes on graphene EM grids using recently developed native mass spectrometry (MS) capabilities at the EMSL. This capability will provide a more homogeneous population of particles on an atomically thin substrate yielding higher resolution and contrast, shorter data processing times, and the ability to characterized smaller protein complexes.

Project Details

Start Date
2019-01-21
End Date
2019-09-30
Status
Closed

Team

Principal Investigator

Jared Shaw
Institution
Environmental Molecular Sciences Laboratory

Co-Investigator(s)

Irina El Khoury
Institution
Environmental Molecular Sciences Laboratory

Team Members

Mowei Zhou
Institution
Environmental Molecular Sciences Laboratory

James Evans
Institution
Environmental Molecular Sciences Laboratory