A dynamic two-dimensional polyacrylamide gel electrophoresis database: The mycobacterial proteomevia Internet

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Abstract
Proteome analysis by two‐dimensional polyacrylamide gel electrophoresis (2‐D PAGE) and mass spectrometry, in combination with protein chemical methods, is a powerful approach for the analysis of the protein composition of complex biological samples. Data organization is imperative for efficient handling of the vast amount of information generated. Thus we have constructed a 2‐D PAGE database to store and compare protein patterns of cell‐associated and culture‐supernatant proteins of different mycobacterial strains. In accordance with the guidelines for federated 2‐DE databases, we developed a program that generates a dynamic 2‐D PAGE database for the World‐Wide‐Web to organise and publish, via the internet, our results from proteome analysis of different Mycobacterium tuberculosis as well as Mycobacterium bovis BCG strains. The uniform resource locator for the database is http://www.mpiib‐berlin.mpg.de/2D‐PAGE and can be read with a Java compatible browser. The interactive hypertext markup language documents displayed are generated dynamically in each individual session from a rational data file, a 2‐D gel image file and a map file describing the protein spots as polygons. The program consists of common gateway interface scripts written in PERL, minimizing the administrative workload of the database. Furthermore, the database facilitates not only interactive use, but also worldwide active participation of other scientific groups with their own data, requiring only minimal computer hardware and knowledge of information technology.