Ubiquitin modification of cellular proteins has been shown to be involved with a wide range of biochemical processes including proteasomal degradation, signal transduction, DNA repair, endocytosis and autophagy.
FK2 is the Gold Standard ubiquitin monoclonal antibody, widely used and cited, that detects ubiquitinated proteins (mono- and poly-ubiquitinated) and ubiquitin chains but does not detect free ubiquitin.