Consulta: creatorFacets:"Christie L. Hunter"
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A novel strategy for the targeted analysis of protein and peptide metabolites
Provedor de dados: Nature Precedings
Autores: Nicholas A. Williamson; Charles Reilly; Chor-Teck Tan; Sri-Harsha Ramarathinam; Alun Jones; Christie L. Hunter; Francis R. Rooney; Anthony W. Purcell.
The detection and quantitation of exogenously administered biological macromolecules (e.g. vaccines, peptide and protein therapeutics) and their metabolites is frequently complicated by the presence of a complex endogenous mixture of closely related compounds. We describe a method that incorporates stable isotope labeling of the compound of interest allowing the selective screening of the intact molecule and all metabolites using a modified precursor ion scan. This method involves monitoring the low molecular weight fragment ions produced during MS/MS that distinguish isotopically labelled material from related endogenous compounds. All isotopically labelled substances can be selected using this scanning technique for further analysis whilst other...
Tipo: Manuscript
Palavras-chave: Biotechnology; Immunology; Pharmacology.
Ano: 2009
URL: http://precedings.nature.com/documents/3812/version/1