Search Results - "Holm, Anne I. S"
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The Histidine Effect. Electron Transfer and Capture Cause Different Dissociations and Rearrangements of Histidine Peptide Cation-Radicals
Published in Journal of the American Chemical Society (11-08-2010)“…Electron-transfer and -capture dissociations of doubly protonated peptides gave dramatically different product ions for a series of histidine-containing…”
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Electron Capture by a Hydrated Gaseous Peptide: Effects of Water on Fragmentation and Molecular Survival
Published in Journal of the American Chemical Society (24-09-2008)“…The effects of water on electron capture dissociation products, molecular survival, and recombination energy are investigated for diprotonated Lys-Tyr-Lys…”
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On the Charge Partitioning Between c and z Fragments Formed After Electron-Capture Induced Dissociation of Charge-Tagged Lys-Lys and Ala-Lys Dipeptide Dications
Published in Journal of the American Society for Mass Spectrometry (01-10-2009)“…Here we report on the charge partition between c and z fragments formed after femtosecond collisional electron-transfer from Cs atoms to charge-tagged peptide…”
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Nanocalorimetry in mass spectrometry: A route to understanding ion and electron solvation
Published in Proceedings of the National Academy of Sciences - PNAS (25-11-2008)“…A gaseous nanocalorimetry approach is used to investigate effects of hydration and ion identity on the energy resulting from ion-electron recombination…”
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Transition metals as electron traps. I. Structures, energetics, electron capture, and electron-transfer-induced dissociations of ternary copper-peptide complexes in the gas phase
Published in Journal of mass spectrometry. (01-05-2009)“…Electron-induced dissociations of gas-phase ternary copper-2,2'-bipyridine complexes of Gly-Gly-Gly and Gly-Gly-Leu were studied on a time scale ranging from…”
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Fingerprints of Bonding Motifs in DNA Duplexes of Adenine and Thymine Revealed from Circular Dichroism: Synchrotron Radiation Experiments and TDDFT Calculations
Published in The journal of physical chemistry. B (16-07-2009)“…Synchrotron radiation circular dichroism (SRCD) spectra were recorded for a family of 12 DNA duplexes that all contain nine adenines (A) and nine thymines (T)…”
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On the Survival of Peptide Cations After Electron Capture: Role of Internal Hydrogen Bonding and Microsolvation
Published in Journal of the American Society for Mass Spectrometry (01-12-2006)“…Electron capture by both bare and microsolvated small peptide dications was investigated by colliding these ions with sodium vapor in an accelerator mass…”
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Transition metals as electron traps. II. Structures, energetics and electron transfer dissociations of ternary Co, Ni and Zn-peptide complexes in the gas phase
Published in Journal of mass spectrometry. (01-10-2009)“…Transition metal cations Co²⁺, Ni²⁺ and Zn²⁺ form 1 : 1 : 1 ternary complexes with 2,2'-bipyridine (bpy) and peptides in aqueous methanol solutions that have…”
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Investigation of Energy Deposited by Femtosecond Electron Transfer in Collisions Using Hydrated Ion Nanocalorimetry
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (30-10-2008)“…Ion nanocalorimetry is used to investigate the internal energy deposited into M2+(H2O) n , M = Mg (n = 3−11) and Ca (n = 3−33), upon 100 keV collisions with a…”
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Effects of Electron Kinetic Energy and Ion-Electron Inelastic Collisions in Electron Capture Dissociation Measured Using Ion Nanocalorimetry
Published in Journal of the American Society for Mass Spectrometry (01-06-2008)“…Ion nanocalorimetry is used to measure the effects of electron kinetic energy in electron capture dissociation (ECD). With ion nanocalorimetry, the internal…”
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Electronic coupling between cytosine bases in DNA single strands and i-motifs revealed from synchrotron radiation circular dichroism experiments
Published in Physical chemistry chemical physics : PCCP (01-01-2010)“…In this work we have recorded synchrotron radiation circular dichroism (SRCD) spectra from 180 nm to 360 nm of cytosine strands [(dC)(n), n = 1, 2, ..., 10] in…”
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Density calibrated cone beam CT as a tool for adaptive radiotherapy
Published in Acta oncologica (03-10-2021)“…Visual inspections of anatomical changes observed on daily cone-beam CT (CBCT) images are often used as triggers for radiotherapy plan adaptation to avoid…”
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On the Mechanism of Electron-Capture-Induced Dissociation of Peptide Dications from 15N-Labeling and Crown-Ether Complexation
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (04-10-2007)“…15N-labeling of di- and tripeptides reveals that electron capture to doubly protonated peptides results almost exclusively in ammonia loss from the N-terminal…”
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Synchrotron radiation circular dichroism of various G-quadruplex structures
Published in Biopolymers (01-05-2010)“…Here we report synchrotron radiation circular dichroism spectra of various G‐quadruplexes from 179 to 350 nm, and a number of bands in the vacuum ultraviolet…”
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On the formation of the double helix between adenine single strands at acidic pH from synchrotron radiation circular dichroism experiments
Published in Biopolymers (01-07-2012)“…Here, we present synchrotron radiation circular dichroism spectra for a series of DNA adenine strands, (dA)n, n = 2–10, 15, at acidic pH. Reference spectra of…”
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Strong coupling between adenine nucleobases in DNA single strands revealed by circular dichroism using synchrotron radiation
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-02-2008)“…Circular dichroism (CD) experiments on DNA single strands (dA(n)) at the ASTRID synchrotron radiation facility reveal that eight adenine (A) bases…”
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A new technique for time-resolved daughter ion mass spectrometry on the microsecond to millisecond time scale using an electrostatic ion storage ring
Published in Review of scientific instruments (01-02-2008)“…A new method for time-resolved daughter ion mass spectrometry is presented, based on the electrostatic ion storage ring in Aarhus, ELISA. Ions with high…”
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Electron‐Capture‐Induced Dissociation of Microsolvated Di‐ and Tripeptide Monocations: Elucidation of Fragmentation Channels from Measurements of Negative Ions
Published in Chemphyschem (13-07-2009)“…The branching ratio between ammonia loss and NCα bond cleavage of singly charged microsolvated peptides after electron capture from cesium depends on the…”
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Dissociation and multiple ionization energies for five polycyclic aromatic hydrocarbon molecules
Published in The Journal of chemical physics (28-01-2011)“…We have performed density functional theory calculations for a range of neutral, singly, and multiply charged polycyclic aromatic hydrocarbons (PAHs), and…”
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Synchrotron Radiation Circular Dichroism of Various G-Guadruplex Structures
Published in Biopolymers (01-05-2010)“…Here we report synchrotron radiation circular dichroism spectra of various G-quadruplexes from 179 to 350 nm, and a number of bands in the vacuum ultraviolet…”
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