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Filtering by: Creator Karas, Michael Remove constraint Creator: Karas, Michael Subject Tandem mass spectrometry Remove constraint Subject: Tandem mass spectrometry

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  • Tandem mass spectrometric analysis of protein and peptide adducts of lipid peroxidation-derived aldehydes

    Creator:
    Wu, Jianyong
    Abstract:
    The adduction of proteins and other biomolecules by electrophilic lipid peroxidation products such as 4-hydroxy-2-nonenal (HNE), 4-oxo-2-nonenal (ONE), malondialdehyde (MDA) or acrolein (ACR) is thought to be an initiating and/or propagating factor in the pathophysiology of several diseases such as atherosclerosis, diabetes, Alzheimer's, Parkinson's and other age-related disorders. The identification...
    Resource Type:
    Dissertation
    Full Text:
    MS/MS analysis were performed to confirm the adduct type and the modification sites. Michael

  • Chemical labeling methods and mass spectrometry of mitochondrial thiol proteomes

    Creator:
    Wang, Jing
    Abstract:
    Dysfunction of mitochondria has been linked to aging and the pathogenesis of many degenerative diseases. Aside from their primary function in energy production, mitochondria are considered as a major source and target of reactive oxygen and nitrogen species (ROS/RNS) in cells as well. The mitochondrial thiol proteome is a subset...
    Resource Type:
    Dissertation
    Full Text:
    conducted in our group, i.e., Michael addition by 2-alkenals and disulfide exchange via glutathionylation

  • Gas-phase fragmentation chemistry of protonated peptide ions

    Creator:
    Bythell, Benjamin James
    Abstract:
    The fragmentation characteristics of protonated peptides have been investigated using tandem mass spectrometry (MS/MS) under various fragmentation regimes and detailed density functional theory (DFT) reaction pathway calculations. The DFT calculations predict novel salt-bridge stabilized transition structures as well as consecutive reactions occurring in proton-bound dimers for some of the ions...
    Resource Type:
    Dissertation