GO terms:
Biological Process:
protein ubiquitination [GO:0016567],
intracellular signal transduction [GO:0035556],
post-translational protein modification [GO:0043687],
biological_process [GO:0008150],
Molecular Function:
protein binding [GO:0005515],
molecular_function [GO:0003674],
Cellular Component:
cytosol [GO:0005829],
cellular_component [GO:0005575],