Dear Pyperl, Thank you very much but the tutorial in the link in to build gene network from micro array data set.
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Hi,
Can I build protein-protein interaction network from available micro array data?
Yes, you can build the protein interaction network based on microarray data.
Use the WGCNA package http://labs.genetics.ucla.edu/horvath/CoexpressionNetwork/Rpackages/WGCNA/Tutorials/
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No, microarray data will not help you build a protein-protein interaction network. At best, you could use microarray data to predict PPIs that you can then test