TITLE

Fourier transform ion cyclotron resonance mass spectrometry of covalent adducts of proteins and 4-hydroxy-2-nonenal, a reactive end-product of lipid peroxidation

AUTHOR(S)
Rauniyar, Navin; Stevens Jr., Stanley M.; Prokai, Laszlo
PUB. DATE
November 2007
SOURCE
Analytical & Bioanalytical Chemistry;Nov2007, Vol. 389 Issue 5, p1421
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Covalent adduction of the model protein apomyoglobin by 4-hydroxy-2-nonenal, a reactive end-product of lipid peroxidation, was characterized by nanoelectrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (FTICR). The high mass resolving power and mass measurement accuracy of the instrument facilitated a detailed compositional analysis of the complex reaction product without the need for deconvolution and transformation to clearly show the pattern of adduction and component molecular weights. Our study has also demonstrated the value of electron capture dissociation over collision-induced dissociation for the tandem mass spectrometric determination of site modification for the 4-hydroxy-2-nonenal adduct of oxidized insulin B chain as an example. [Figure not available: see fulltext.]
ACCESSION #
27251456

 

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