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Ubiquitin is a conserved 76 amino acid polypeptide and can affect proteasomal degradation of the protein it is bound to, or mediate interactions with other proteins related to post-translational modifications. The degradation of cellular regulatory proteins by the Uubiquitin pathway is important as it controls the cellular growth and proliferation. Ubiquitin-dependent proteolysis occurs after a covalent attachment of the peptide to a lysine residue of a protein, which involves three enzymatic reactions: E1, E2 and E3. The first reaction involves ubiquitin-activating enzyme. The third reaction uses enzyme ubiquitin ligase (E3) to transfer the activated ubiquitin from E2 to a lysine residue on a protein, or directly transfers the ubiquitin from E2 to the substrate.
0610006J14Rik; 2700054O04Rik; 40S ribosomal protein S27a; 60S ribosomal protein L40; AI194771; AL033289; CEP52; CEP80; D8Ertd21e; epididymis luminal protein 112; epididymis secretory protein Li 50; Gm1863; HEL112; HEL-S-50; HMG20; HUBCEP52; L40; Large ribosomal subunit protein eL40; LOC100912032; polyubiquitin B; polyubiquitin C; polyubiquitin-B; Polyubiquitin-C; ribosomal protein S27A; RPL40; Rps27a; S27A; Small ribosomal subunit protein eS31; TI-225; Uba52; UBA80; Ubb; Ubb2; UBC; UBCEP1; UBCEP2; UBCEP80; Ubiquitin; Ubiquitin A-52 residue ribosomal protein fusion product 1; ubiquitin and ribosomal protein S27a; ubiquitin B; ubiquitin C; ubiquitin carboxyl extension protein 52; ubiquitin carboxyl extension protein 80; ubiquitin/60S ribosomal fusion protein; Ubiquitin-40S ribosomal protein S27a; ubiquitin-40S ribosomal protein S27a-like; ubiquitin-52 amino acid fusion protein; ubiquitin-60S ribosomal protein L40; ubiquitin-CEP52; ubiquitin-CEP80; Ubiquitin-related; Ubiquitin-related 1; Ubiquitin-related 2
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