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Journal of the American Society for Mass Spectrometry
Papers 5991
1 page of 600 pages (5,991 results)
Published on Jul 17, 2019in Journal of the American Society for Mass Spectrometry 3.20
Christopher S. Mallis (A&M: Texas A&M University), Manik Lal Saha20
Estimated H-index: 20
(UofU: University of Utah)
+ 1 AuthorsDavid H. Russell51
Estimated H-index: 51
(A&M: Texas A&M University)
Coordination-driven self-assembly (CDSA) is increasingly used to synthesize coordination complexes containing metal-centered electron acceptors and typically nitrogen-containing electron donors. Characterization of the structures obtained from CDSA via crystallographic or spectroscopic means is limited due to difficulties in forming single crystals for X-ray studies and overlapping precursor and product signals in NMR. Here, we employ ion mobility-mass spectrometry (IM-MS), which provides a dire...
Published on May 16, 2019in Journal of the American Society for Mass Spectrometry 3.20
Bingqing Zhao , Colin P. Reilly , James P. Reilly40
Estimated H-index: 40
Peptide cross-links formed using the homobifunctional-linker diethyl suberthioimidate (DEST) are shown to be ETD-cleavable. DEST has a spacer arm consisting of a 6-carbon alkyl chain and it cleaves at the amidino groups created upon reaction with primary amines. In ETD MS2 spectra, DEST cross-links can be recognized based on mass pairs consisting of peptide-NH2• and peptide+linker+NH3 ions, and backbone cleavages are more equally distributed over the two constituent peptides compared with collis...
Published on Jun 27, 2019in Journal of the American Society for Mass Spectrometry 3.20
Jianzhong Wen (MSD: Merck & Co.), Weixun Wang4
Estimated H-index: 4
(MSD: Merck & Co.)
+ 4 AuthorsLucinda Hittle1
Estimated H-index: 1
(MSD: Merck & Co.)
Peptides represent a promising modality for the design of novel therapeutics that can potentially modulate traditionally non-druggable targets. Cell-penetrating peptides (CPPs) and antimicrobial peptides (AMPs) are two large families that are being explored extensively as drug delivery vehicles, imaging reagents, or therapeutic treatments for various diseases. Many CPPs and AMPs are cationic among which a significant portion is extremely basic and hydrophilic (e.g., nona-arginine). Despite their...
Published on May 20, 2019in Journal of the American Society for Mass Spectrometry 3.20
Kang Jiang (U of S: University of Saskatchewan), George Gachumi1
Estimated H-index: 1
(U of S: University of Saskatchewan)
+ 3 AuthorsAnas El-Aneed15
Estimated H-index: 15
(U of S: University of Saskatchewan)
Phytosterols and tocopherols are essential for plant biochemistry, and they possess beneficial health effects for humans. Evaluating the tandem mass spectrometric (MS/MS) behavior of phytosterols and tocopherols is needed for the development of a qualitative and quantitative method for these biologically active plant metabolites. Herein, the MS/MS dissociation behavior of phytosterols and tocopherols is elucidated to establish generalized MS/MS fingerprints. MS/MS and multistage (MS3) analysis r...
Published on Jun 3, 2019in Journal of the American Society for Mass Spectrometry 3.20
Yi You4
Estimated H-index: 4
(KSU: Kent State University),
Sunil P. Badal1
Estimated H-index: 1
(KSU: Kent State University),
Jacob T. Shelley18
Estimated H-index: 18
(KSU: Kent State University)
Ambient mass spectrometry is a powerful approach for rapid, high-throughput, and direct sample analysis. Due to the open-air desorption and ionization processes, random fluctuations of ambient conditions can lead to large variances in mass-spectral signals over time. The mass-spectral data also can be further complicated due to multiple analytes present in the sample, background-ion signals stemming from the desorption/ionization source itself, and other laboratory-specific conditions (e.g., amb...
Published on Jun 27, 2019in Journal of the American Society for Mass Spectrometry 3.20
Boštjan Jenčič2
Estimated H-index: 2
Primož Vavpetič14
Estimated H-index: 14
+ 4 AuthorsP. Pelicon20
Estimated H-index: 20
MeV-SIMS is an emerging mass spectrometry imaging method, which utilizes fast, heavy ions to desorb secondary molecules. High yields and low fragmentation rates of large molecules, associated with the electronic sputtering process, make it particularly useful in biomedical research, where insight into distribution of organic molecules is needed. Since the implementation of MeV-SIMS in to the micro-beam line at the tandem accelerator of Jožef Stefan Institute, MeV-SIMS provided some valuable obse...
Published on Jun 10, 2019in Journal of the American Society for Mass Spectrometry 3.20
Zachary M. Smith (W&M: College of William & Mary), Xiye Wang (W&M: College of William & Mary)+ 7 AuthorsJohn C. Poutsma13
Estimated H-index: 13
(W&M: College of William & Mary)
Infrared multiple photon dissociation action spectroscopy was performed on the AlaOrn b2+ and AlaAlaOrn b3+ fragment ions from ornithine-containing tetrapeptides. Infrared spectra were obtained in the fingerprint region (1000–2000 cm−1) using the infrared free electron lasers at the Centre Laser Infrarouge d’Orsay (CLIO) facility in Orsay, France, and the free electron lasers for infrared experiments (FELIX) facility in Nijmegen, the Netherlands. A novel terminal ornithine lactam AO+ b2+ structu...
Published on May 13, 2019in Journal of the American Society for Mass Spectrometry 3.20
Andy Dang2
Estimated H-index: 2
(UW: University of Washington),
Joseph A. Korn1
Estimated H-index: 1
(UW: University of Washington)
+ 2 AuthorsFrantišek Tureček45
Estimated H-index: 45
(UW: University of Washington)
We report automated procedures for multiple tandem mass spectra acquisition allowing UV–Vis photodissociation action spectroscopy measurements of ions and radicals. The procedures were developed for two commercial ion trap mass spectrometers and applied to collision-induced and electron–transfer dissociation tandem mass spectrometry modes of ion generation.
Published on Jul 8, 2019in Journal of the American Society for Mass Spectrometry 3.20
Khadar Duale1
Estimated H-index: 1
(University of Wolverhampton),
Anthony J. Stace24
Estimated H-index: 24
(University of Nottingham)
A comprehensive examination of how the identity of an alcohol molecule can change the behavior of a solvated, alkaline earth dication has been undertaken. The metal dication of Ca2+ has been clustered with a range of different alcohols to form [Ca(ROH)n]2+ complexes, where n lies in the range 2–20. Following collisional activation via electron capture from nitrogen gas, complexes for n in the range 2–6 exhibit a switch in reaction product as a function of n. For low values, solvated CaOH+ is the...
Published on May 20, 2019in Journal of the American Society for Mass Spectrometry 3.20
Martin Penkert4
Estimated H-index: 4
(Humboldt University of Berlin),
Anett Hauser3
Estimated H-index: 3
(Humboldt University of Berlin)
+ 3 AuthorsEberhard Krause49
Estimated H-index: 49
In recent years, labile phosphorylation sites on arginine, histidine, cysteine, and lysine as well as pyrophosphorylation of serine and threonine have gained more attention in phosphoproteomic studies. However, the analysis of these delicate posttranslational modifications via tandem mass spectrometry remains a challenge. Common fragmentation techniques such as collision-induced dissociation (CID) and higher energy collisional dissociation (HCD) are limited due to extensive phosphate-related neu...