Capillary chromatography/microelectrospray mass spectrometry used for the identification of putative cyclin-dependent kinase inhibitory protein in Medicago
- 30 October 1998
- journal article
- research article
- Published by Wiley in Rapid Communications in Mass Spectrometry
- Vol. 12 (20) , 1564-1568
- https://doi.org/10.1002/(sici)1097-0231(19981030)12:20<1564::aid-rcm351>3.0.co;2-t
Abstract
A home‐built capillary chromatography/microelectrospray system was used for peptide mass mapping of a putative cyclin‐dependent kinase inhibitor protein with molecular mass of 8.5 kDa. The masses of identified tryptic fragments were then input to a protein database search routine. Daughter ion scans were done only on the most abundant tryptic fragments. On the basis of protein database search results and tandem mass spectrometric measurements the bioactive protein was identified as ubiquitin. © 1998 John Wiley & Sons, Ltd.Keywords
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