I work in gene optimization for heterologous expression, and I'd like to obtain random protein expression levels to make a study relating gene characteristics (codon usage, codon contexts, etc) to the amount of protein that results from that gene.
It would be great to have a list of mRNAs, and the expected protein expression level for each of them.
I can't find any online database.
A good starting point would be www.genecards.org. It provides data about tissuespecific mRNA as well as protein expression and also numerous links to related databases. I am not sure whether you can actually extract the data in such a way as required for your analysis, but perhaps it does help.
When I need a quick searh I am using ProteinAtlas ( http://www.proteinatlas.org/ )
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