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J Proteome Res. 2006 Aug;5(8):2025-32.

Characterization of the Drosophila melanogaster ribosomal proteome.

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  • 1Centro de Biología Molecular Severo Ochoa, CSIC-UAM, Universidad Autónoma, Cantoblanco, 28049-Madrid, Spain.


We have combined high-resolution two-dimensional (2-D) gel electrophoresis with mass spectrometry to identifying proteins represented in a 2-D gel database of Drosophila melanogaster ribosomes. First, we purified ribosomes from third instar Drosophila larvae and constructed a high-resolution 2-D gel database containing 58 Coomassie blue stained polypeptides. Next, we carried out preparative 2-D PAGE to isolate some of the polypeptides and characterize them by MALDI-TOF. Using this strategy we identified 52 ribosomal spots in the database, and in each case confirmed their identity by MALDI-TOF/TOF. The database can be used to analyze Minute mutants of Drosophila.

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