The role of electron transfer dissociation in modern proteomics

NM Riley, JJ Coon - Analytical Chemistry, 2018 - ACS Publications
(MS) and MS-driven proteomics have continued to develop as the premier tools for
characterizing proteome composition, structure, and function. 2 The new era of proteomics …

Magnifying ion mobility spectrometry–mass spectrometry measurements for biomolecular structure studies

SN Majuta, H Maleki, AK Karanji, K Attanyake… - Current opinion in …, 2018 - Elsevier
Highlights•Application of ion mobility spectrometry–mass spectrometry (IMS–MS) techniques
for structure characterization have dramatically increased.•Growth is, in part, attributed to …

In‐droplet hydrogen–deuterium exchange to examine protein/peptide solution conformer heterogeneity

D Sharif, M Rahman, S Mahmud… - Rapid …, 2023 - Wiley Online Library
Rationale Many different structure analysis techniques are not capable of probing the
heterogeneity of solution conformations. Here, we examine the ability of in‐droplet hydrogen …

Characterizing Multidevice Capillary Vibrating Sharp-Edge Spray Ionization for In-Droplet Hydrogen/Deuterium Exchange to Enhance Compound Identification

A DeBastiani, SN Majuta, D Sharif, K Attanayake… - ACS …, 2021 - ACS Publications
Multidevice capillary vibrating sharp-edge spray ionization (cVSSI) source parameters have
been examined to determine their effects on conducting in-droplet hydrogen/deuterium …

Evaluation of Hydrogen–Deuterium Exchange during Transient Vapor Binding of MeOD with Model Peptide Systems Angiotensin II and Bradykinin

HM Schramm, T Tamadate, CJ Hogan… - The Journal of …, 2023 - ACS Publications
The advancement of hybrid mass spectrometric tools as an indirect probe of molecular
structure and dynamics relies heavily upon a clear understanding between gas-phase ion …

Structure Characterization of a Disordered Peptide Using In-Droplet Hydrogen/Deuterium Exchange Mass Spectrometry and Molecular Dynamics

MA Rahman, MN Sultana, D Sharif… - ACS Physical …, 2024 - ACS Publications
In-droplet hydrogen/deuterium exchange (HDX)-mass spectrometry (MS) experiments have
been conducted for peptides of highly varied conformational type. A new model is presented …

Comprehensive Peptide Ion Structure Studies Using Ion Mobility Techniques: Part 3. Relating Solution-Phase to Gas-Phase Structures

SG Kondalaji, M Khakinejad… - Journal of The American …, 2018 - ACS Publications
Molecular dynamics (MD) simulations have been utilized to study peptide ion conformer
establishment during the electrospray process. An explicit water model is used for …

Nucleation inhibition of Huntingtin protein (htt) by polyproline PPII helices: a potential interaction with the N-terminal α-helical region of htt

JR Arndt, M Chaibva, M Beasley, A Kiani Karanji… - Biochemistry, 2019 - ACS Publications
Huntington's disease is a genetic neurodegenerative disorder characterized by the
formation of amyloid fibrils of the huntingtin protein (htt). The 17-residue N-terminal region of …

Comparison of peptide ion conformers arising from non-helical and helical peptides using ion mobility spectrometry and gas-phase hydrogen/deuterium exchange

AK Karanji, M Khakinejad, SG Kondalaji… - Journal of the …, 2018 - ACS Publications
The dominant gas-phase conformer of [M+ 3H] 3+ ions of the model peptide acetyl-
PSSSSKSSSSKSSSSKSSSSK has been examined with ion mobility spectrometry (IMS), gas …

Investigating the interactions of the first 17 amino acid residues of Huntingtin with lipid vesicles using mass spectrometry and molecular dynamics

AK Karanji, M Beasley, D Sharif… - Journal of Mass …, 2020 - Wiley Online Library
The first 17 amino acid residues of Huntingtin protein (Nt17 of htt) are thought to play an
important role in the protein's function; Nt17 is one of two membrane binding domains in htt …