Ubiquitination and deubiquitination are two popular styles of post-translation modification of protein . These two modifications affect intracellular localization , stability and functions of target proteins .And the process of deubiquitination is involved in the modification of histone , cell cycle , cell differentiation , cell apoptosis , endocyto-sis, autophagy and DNA repair after damage , and it is also involved in the procedures of carcinogenes...