Before revision:  We introduce a new stochastic model of the proteasomal transport. We account for the protein translocation and the topology of the positioning of cleavage centers of a proteasome from first principles.
After revision:  We introduce a new stochastic model of the proteasomal digestion (cleavage) of proteins. In this model we account for the protein translocation and the topology of the positioning of cleavage centers of a proteasome from first principles.