List of proteins that selectively interact with unphosphorylatable form of rpS6.

Whole cell extract from HEK293 cells infected with pS6[5S]-GFP, pS6[5A]-GFP, pS6[5D]-GFP or pEGFP-N1, was subjected to GFP pull-down, and the bound proteins were size fractionated by SDS-polyacrlamide gel electrophoresis. Mass spectrometric analysis of proteins in each lane was performed as described in “material and Methods” and proteins, selectively bound to pS6[5A]-GFP in two independent experiments, are presented (numbers separated by slash [/] represent results obtained in each of the two individual analyses).