| Literature DB >> 8645148 |
T Laussmann1, R Eujen, C M Weisshuhn, U Thiel, G Vogel.
Abstract
Diphospho-myo-inositol phosphates (PP-InsP5 and bis-PP-InsP4) were isolated from Dictyostelium in order to clarify the precise positional isomerism by two-dimensional 1H/31P-NMR analysis. The diphosphorylated inositol phosphates are 4-PP-Ins(1,2,3,5,6)P5 and 4,5-bis-PP-Ins(1,2,3,6)P4 or their corresponding enantiomers. The vicinal arrangement of the diphospho groups with its steric and electrostatic constraints possibly qualifies bis-PP-InsP4 as a metabolite with high phosphate-group-transfer potential in phosphotransferase reactions.Entities:
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Year: 1996 PMID: 8645148 PMCID: PMC1217265 DOI: 10.1042/bj3150715
Source DB: PubMed Journal: Biochem J ISSN: 0264-6021 Impact factor: 3.857