The use of 2-D gels to identify novel protein-protein interactions in the cochlea.

The use of 2-D gels to identify novel protein-protein interactions in the cochlea.

Methods in molecular biology (Clifton, N.J.) (2008-10-08)

Thandavarayan Kathiresan, Margaret C Harvey, Bernd H A Sokolowski

RESUMEN

Functional proteomics comprises a wide range of technologies for the identification of novel protein-protein interactions and biological markers. Studies of protein-protein interactions have gained from the development of techniques and technologies such as immunoprecipitation, preparative two-dimensional (2-D) gel electrophoresis for peptide mass fingerprinting (PMF), using matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry, and liquid chromatography-tandem mass spectrometry (LC-MS/MS). These applications enabled the discovery of putative protein partners without a priori knowledge of which one(s) might be relevant. Here, we report the methods by which membrane proteins are isolated from cochlear tissues and prepared for identification by mass spectrometry techniques.

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