| Literature DB >> 18042442 |
Philip R Gafken1, Catalin E Doneanu, Samuel E Bennett, Douglas F Barofsky.
Abstract
In this report, the effectiveness of high performance liquid chromatography (HPLC) in conjunction with electrospray ionization mass spectrometry (ESI-MS) is examined as a tool for identifying the sites of crosslinking in a protein that has been photoreacted with a non-photolabeled oligonucleotide. ESI-MS and MALDI-MS analyses preceded by off-line microflow and nanoflow HPLC, on-line microflow HPLC/ESI, and on-line nanoflow HPLC/ESI interfaces were performed in order to determine their relative effectiveness in separating mixtures of nucleopeptides and identifying sites of crosslinking on the individual components. The characteristics of these four techniques as well as possibilities for improving the analysis of nucleopeptides by ESI-MS are compared and discussed.Entities:
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Year: 2007 PMID： 18042442 PMCID： PMC2238692 DOI： 10.1016/j.jchromb.2007.09.029
Source DB: PubMed Journal: J Chromatogr B Analyt Technol Biomed Life Sci ISSN： 1570-0232 Impact factor: 3.205