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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Separation and quantitative analysis of O-linked phosphoamino acids by isocratic high-performance liquid chromatography of the 9-fluorenylmethyl chloroformate derivatives.

Phosphoamino acids derivatized with 9-fluorenylmethyl chloroformate were separated on an anion-exchange column (Partisil 10 SAX) at pH 3.90 using an isocratic elution with 10.0 mM potassium phosphate, 1.0% tetrahydrofuran, and 55% methanol. Phosphoamino acids were eluted with baseline resolution in the following order: phosphotyrosine, phosphothreonine, and phosphoserine. Each phosphoamino acid was separated from its parent amino acid, dicarboxylic amino acids, sugaramine phosphates, as well as the other common amino acids. The turn-around time from injection to injection was 35 min. The linearity for all three O-linked phosphoamino acids extended from 0.5-1000 pmol and has been shown to be directly applicable to the analysis of isolated phosphoproteins.[1]

References

  1. Separation and quantitative analysis of O-linked phosphoamino acids by isocratic high-performance liquid chromatography of the 9-fluorenylmethyl chloroformate derivatives. Niedbalski, J.S., Ringer, D.P. Anal. Biochem. (1986) [Pubmed]
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