Ultraviolet photodissociation mass spectrometry for analysis of biological molecules

JS Brodbelt, LJ Morrison, I Santos - Chemical reviews, 2019 - ACS Publications
The development of new ion-activation/dissociation methods continues to be one of the most
active areas of mass spectrometry owing to the broad applications of tandem mass …

On the chemistry of aqueous ammonium acetate droplets during native electrospray ionization mass spectrometry

L Konermann, Z Liu, Y Haidar, MJ Willans… - Analytical …, 2023 - ACS Publications
Ammonium acetate (NH4Ac) is a widely used solvent additive in native electrospray
ionization (ESI) mass spectrometry. NH4Ac can undergo proton transfer to form ammonia …

Computational strategies and challenges for using native ion mobility mass spectrometry in biophysics and structural biology

TM Allison, P Barran, S Cianférani… - Analytical …, 2020 - ACS Publications
Native mass spectrometry (MS) allows the interrogation of structural aspects of
macromolecules in the gas phase, under the premise of having initially maintained their …

Gas phase stability of protein ions in a cyclic ion mobility spectrometry traveling wave device

C Eldrid, J Ujma, S Kalfas, N Tomczyk, K Giles… - Analytical …, 2019 - ACS Publications
Ion mobility mass spectrometry (IM-MS) allows separation of native protein ions into
“conformational families”. Increasing the IM resolving power should allow finer structural …

Protein ions generated by native electrospray ionization: comparison of gas phase, solution, and crystal structures

M Bakhtiari, L Konermann - The Journal of Physical Chemistry B, 2019 - ACS Publications
Experiments and molecular dynamics (MD) simulations in the literature indicate that
gaseous proteins generated by electrospray ionization (ESI) can retain native-like structures …

Gas-phase unfolding of protein complexes distinguishes conformational isomers

S Nash, RW Vachet - Journal of the American Chemical Society, 2022 - ACS Publications
Proteins can adopt different conformational states that are important for their biological
function and, in some cases, can be responsible for their dysfunction. The essential roles …

Formation of gaseous proteins via the ion evaporation model (IEM) in electrospray mass spectrometry

E Aliyari, L Konermann - Analytical chemistry, 2020 - ACS Publications
The mechanisms whereby protein ions are released into the gas phase from charged
droplets during electrospray ionization (ESI) continue to be controversial. Several pathways …

Chain ejection model for electrospray ionization of unfolded proteins: evidence from atomistic simulations and ion mobility spectrometry

H Metwally, Q Duez, L Konermann - Analytical chemistry, 2018 - ACS Publications
The ion evaporation model (IEM) and the charged residue model (CRM) represent
cornerstones of any discussion related to the mechanism of electrospray ionization (ESI) …

Structure relaxation approximation (SRA) for elucidation of protein structures from ion mobility measurements (II). Protein complexes

TC Cropley, FC Liu, T Pedrete… - The Journal of …, 2023 - ACS Publications
Characterizing structures of protein complexes and their disease-related aberrations is
essential to understanding molecular mechanisms of many biological processes …

Giving the green light to photochemical uncaging of large biomolecules in high vacuum

Y Hua, M Strauss, S Fisher, MFX Mauser, P Manchet… - JACS Au, 2023 - ACS Publications
The isolation of biomolecules in a high vacuum enables experiments on fragile species in
the absence of a perturbing environment. Since many molecular properties are influenced …