Mass spectra of aminoacyl adenylate pentacoordinated phosphorus compounds

✍ Scribed by Hua Fu; Yu-Fen Zhao; Hong-Zhan Xiao; Jing-Zun Wang

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 42 KB
• Volume: 13
• Category: Article
• ISSN: 0951-4198
• DOI: 10.1002/(sici)1097-0231(19990730)13:14<1477::aid-rcm670>3.0.co;2-5

✦ Synopsis

Aminoacyl adenylate pentacoordinated phosphorus compounds were analyzed by field desorption (FD) and fast atom bombardment (FAB) mass spectrometries, together with the B/E linked scan technique, and their mass spectral fragmentation pathways were investigated. For the five bonds (one P-N bond, three P-O bonds and one mixed anhydride bond P-O-CO), the cleavage usually occurred more on the P-N bond, the mixed anhydride bond and the O-C bond adjacent to the P-O bond, and less on the P-O bond. Ion YH , corresponding to water loss from protonated 2',3'-O-isopropylidene-adenosine, was the base peak. The results reflect the structural characteristics of aminoacyl adenylate pentacoordinated phosphorus compounds.