Yes. To get you started, Trey Idekker's lab has generated and collected a number of datasets. You'd probably also want to check out string as a nice example of a general PPI database. I suggest you also google "biological network database" and look at the first few pages of links; there are lots of such databases.
Let the buyer beware, however, when it comes to determining the accuracy of such reconstructions and whether they apply to a given circumstance.