Abstract
Autoradiography is used to visualize and quantitate radiolabeled proteins that are resolved by 2-D protein gel electrophoresis. Proteins are commonly labeled in vivo with either 3H, 14C, 35S (low-energy (β-emitters), 32P (high-energy β-emitter), or 125I (high-energy γ-rays). During film-based autoradiography, these emitted particles or γ-rays enter the film and cause the ejection of electrons from silver halide crystals generating local precipitates of silver atoms. In the past several years, the use of phosphor imaging has been replacing film-based autoradiography. Phosphor imaging has 10–250 times increased sensitivity compared to film-base autoradiography. While film has a dynamic range of about 300 to 1, phosphor imaging has a linear dynamic range over several orders of magnitude (1).
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References
Johnston, R. F., Pickett, S. C, and Barker, D. L. (1990) Autoradiography using storage phosphor technology. Electrophoresis 11, 355–360.
Laskey, R. A. and Mills, A. D. (1975) Quantitative film detection of 3H and 14C in polyacrylamide gels by fluorography. Eur. J. Biochem. 56, 335–341.
Laskey, R. A. (1980) The use of intensifying screens or organic scintillators for visualizing radioactive molecules resolved by gel electrophoresis. Methods Enzymol. 65, 363–371.
Laskey, R. A. and Mills, A. D. (1977) Enhanced autoradiographic detection of 32P and 125I using intensifying screens and hypersensitized film. FEBS. Lett. 82, 314–316.
Roberts, P. L. (1985) Comparison of fluorographic methods for detecting radioactivity in polyacrylamide gels or on nitrocellulose. Anal Biochem. 147, 521–524.
McConkey, E. H. (1979) Double-label autoradiography for comparison of complex protein mixtures after gel electrophoresis. Anal. Biochem. 96, 39–44.
Cooper, P. C. and Burgess, A. W. (1982) Simultaneous detection of 35S-and 32P-labeled proteins on electrophoretic gels. Anal. Biochem. 126, 301–305.
Garrels, J. I. (1983) Quantitative two-dimensional gel electrophoresis of protein. Methods Enzymol. 100, 411–423.
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© 1999 Humana Press Inc., Totowa, NJ
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Link, A.J. (1999). Autoradiography of 2-D Gels. In: Link, A.J. (eds) 2-D Proteome Analysis Protocols. Methods in Molecular Biology, vol 112. Humana Press. https://doi.org/10.1385/1-59259-584-7:285
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DOI: https://doi.org/10.1385/1-59259-584-7:285
Publisher Name: Humana Press
Print ISBN: 978-0-89603-524-9
Online ISBN: 978-1-59259-584-6
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