Meyer S, Noisommit-Rizzi N, Reuss M, Neubauer P. Optimized analysis of intracellular adenosine and guanosine phosphates in Escherichia coli.
Anal Biochem 1999;
271:43-52. [PMID:
10361003 DOI:
10.1006/abio.1999.4119]
[Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To investigate the intracellular concentrations of adenosine phosphates in Escherichia coli, especially during bioreactor cultivations, a method that enables reproducible determination of adenosine phosphates in culture solutions containing at least 0.25 g dry cell weight/L has been developed. The detection limits of AMP, ADP, and ATP were found to be as low as 1 pmol. The method involves fast sampling, instantaneous inactivation of cell metabolism, extraction of nucleotides, and quantitative analysis by ion-pair reversed-phase HPLC.
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