Proteomic analysis of the mouse brain following protein enrichment by preparative electrophoresis

Electrophoresis
Elena XixiMichael Fountoulakis

Abstract

Proteomics is a powerful technology to study the identity and levels of brain proteins. Changes of protein levels as well as modifications that occur in neurological disorders may be informative for the pathogenesis of these disorders and could result in the identification of potential drug targets and disease markers. To increase the capability of characterizing complex protein profiles, protein mixtures should be separated into simpler fractions, thus increasing the likelihood of detecting low-abundance proteins. Considering that low-abundance proteins are thought to be involved in important biological processes, identification of those low-copy-number gene products appears to be a scientific challenge. In the present study, proteomic analysis of adult mouse brain tissue was performed following enrichment by preparative electrophoresis. This was performed using the PrepCell apparatus in the presence of 0.1% lithium dodecyl sulfate. Samples were electrophoresed in a cylindrical polyacrylamide gel and the proteins of the fractions collected were first analyzed by 1-D and then by 2-DE. Protein identification was performed by MALDI-TOF-MS. The present analysis resulted in the identification of 360 different gene products. Among t...Continue Reading

References

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Citations

Mar 28, 2013·International Journal of Proteomics·Valerie C WasingerYunki Yau

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