Native vs Denatured: An in Depth Investigation of Charge State and Isotope Distributions.

ABSTRACT: New tools and techniques have dramatically accelerated the field of structural biology over the past several decades. One potent and relatively new technique that is now being utilized by an increasing number of laboratories is the combination of so-called "native" electrospray ionization (ESI) with mass spectrometry (MS) for the characterization of proteins and their noncovalent complexes. However, native ESI-MS produces species at increasingly higher m/z with increasing molecular weight, leading to substantial differences when compared to traditional mass spectrometric approaches using denaturing ESI solutions. Herein, these differences are explored both theoretically and experimentally to understand the role that charge state and isotopic distributions have on signal-to-no

SUBMITTER: Kafader JO 

PROVIDER: S-EPMC7539638 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature