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@article{3ec121ddc53d4c4f8140bd05fd8c4942,
title = "A simplified method for rapid quantification of intracellular nucleoside triphosphates by one-dimensional thin-layer chromatography",
publisher = "Academic Press",
author = "Jendresen, {Christian Bille} and Mogens Kilstrup and Jan Martinussen",
year = "2011",
doi = "10.1016/j.ab.2010.10.029",
volume = "409",
number = "2",
pages = "249--259",
journal = "Analytical Biochemistry",
issn = "0003-2697",

}

RIS

TY - JOUR

T1 - A simplified method for rapid quantification of intracellular nucleoside triphosphates by one-dimensional thin-layer chromatography

A1 - Jendresen,Christian Bille

A1 - Kilstrup,Mogens

A1 - Martinussen,Jan

AU - Jendresen,Christian Bille

AU - Kilstrup,Mogens

AU - Martinussen,Jan

PB - Academic Press

PY - 2011

Y1 - 2011

N2 - Quantification of nucleotides is an important part of metabolomics but has been hampered by the lack of fast, sensitive, and reliable methods. We present a less time-consuming, more sensitive, and more precise method for the quantitative determination of nucleoside triphosphates (NTPs), 5-ribosyl-1-pyrophosphate (PRPP), and inorganic pyrophosphate (PPi) in cell extracts. The method uses one-dimensional thin-layer chromatography (TLC) and radiolabeled biological samples. Nucleotides are resolved at the level of ionic charge in an optimized acidic ammonium formate and chloride solvent, permitting quantification of NTPs. The method is significantly simpler and faster than both current two-dimensional methods and high-performance liquid chromatography (HPLC)-based procedures, allowing a higher throughput while common sources of inaccuracies and technical problems are avoided. For determination of PPi, treatment with inorganic pyrophosphatase (PPase) of the radiolabeled phosphate is employed for removal of contaminating pyrophosphate. Biological examples performed in triplicates showed standard deviations of approximately 10% of the mean for the determined concentrations of NTPs.

AB - Quantification of nucleotides is an important part of metabolomics but has been hampered by the lack of fast, sensitive, and reliable methods. We present a less time-consuming, more sensitive, and more precise method for the quantitative determination of nucleoside triphosphates (NTPs), 5-ribosyl-1-pyrophosphate (PRPP), and inorganic pyrophosphate (PPi) in cell extracts. The method uses one-dimensional thin-layer chromatography (TLC) and radiolabeled biological samples. Nucleotides are resolved at the level of ionic charge in an optimized acidic ammonium formate and chloride solvent, permitting quantification of NTPs. The method is significantly simpler and faster than both current two-dimensional methods and high-performance liquid chromatography (HPLC)-based procedures, allowing a higher throughput while common sources of inaccuracies and technical problems are avoided. For determination of PPi, treatment with inorganic pyrophosphatase (PPase) of the radiolabeled phosphate is employed for removal of contaminating pyrophosphate. Biological examples performed in triplicates showed standard deviations of approximately 10% of the mean for the determined concentrations of NTPs.

UR - http://dx.doi.org/10.1016/j.ab.2010.10.029

U2 - 10.1016/j.ab.2010.10.029

DO - 10.1016/j.ab.2010.10.029

JO - Analytical Biochemistry

JF - Analytical Biochemistry

SN - 0003-2697

IS - 2

VL - 409

SP - 249

EP - 259

ER -