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| Product | Description | |
|---|---|---|
| E2 ubiquitin-conjugating enzyme | The E2 ubiquitin-conjugating enzyme acquires the activated ubquitin from the E1 ubiquitin-activating enzyme (EC 6.2.1.45) and binds it via a transthioesterification reaction to itself. In the human enzyme the catalytic center is located at Cys-87 where ubiquitin is bound via its C-terminal glycine in a thioester linkage. Group: Enzymes. Synonyms: ubiquitin-carrier-protein E2; UBC (ambiguous); ubiquitin-conjugating enzyme E2. Enzyme Commission Number: EC 2.3.2.23. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2297; E2 ubiquitin-conjugating enzyme; EC 2.3.2.23; ubiquitin-carrier-protein E2; UBC (ambiguous); ubiquitin-conjugating enzyme E2. Cat No: EXWM-2297. |  |
| (E3-independent) E2 ubiquitin-conjugating enzyme | The enzyme transfers a single ubiquitin directly from an ubiquitinated E1 ubiquitin-activating enzyme to itself, and on to a lysine residue of the acceptor protein without involvement of E3 ubiquitin transferases (cf. EC 2.3.2.26, EC 2.3.2.27). It forms a labile ubiquitin adduct in the presence of E1, ubiquitin, and Mg2+-ATP and catalyses the conjugation of ubiquitin to protein substrates, independently of E3. This transfer has only been observed with small proteins. In vitro a transfer to small acceptors (e.g. L-lysine, N-acetyl-L-lysine methyl ester) has been observed. Group: Enzymes. Synonyms: E2-230K; UBE2O; E3-independent ubiquitin-conjugating enzyme E2. Enzyme Commission Number: EC 2.3.2.24. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2298; (E3-independent) E2 ubiquitin-conjugating enzyme; EC 2.3.2.24; E2-230K; UBE2O; E3-independent ubiquitin-conjugating enzyme E2. Cat No: EXWM-2298. | |
| N-terminal E2 ubiquitin-conjugating enzyme | The enzyme ubiquitinylates the N-terminus of the acceptor protein. It is not reactive towards free lysine. Group: Enzymes. Synonyms: Ube2w; N-terminal ubiquitin-conjugating enzyme E2. Enzyme Commission Number: EC 2.3.2.25. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2299; N-terminal E2 ubiquitin-conjugating enzyme; EC 2.3.2.25; Ube2w; N-terminal ubiquitin-conjugating enzyme E2. Cat No: EXWM-2299. | |
| HECT-type E3 ubiquitin transferase | In the first step the enzyme transfers ubiquitin from the E2 ubiquitin-conjugating enzyme (EC 2.3.2.23) to a cysteine residue in its HECT domain (which is located in the C-terminal region), forming a thioester bond. In a subsequent step the enzyme transfers the ubiquitin to an acceptor protein, resulting in the formation of an isopeptide bond between the C-terminal glycine residue of ubiquitin and the ε-amino group of an L-lysine residue of the acceptor protein. Group: Enzymes. Synonyms: HECT E3 ligase (misleading); ubiquitin transferase HECT-E3. Enzyme Commission Number: EC 2.3.2.26. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2300; HECT-type E3 ubiquitin transferase; EC 2.3.2.26; HECT E3 ligase (misleading); ubiquitin transferase HECT-E3. Cat No: EXWM-2300. | |
| Native Mammalian Ubiquitin Conjugating Enzyme Fractions | Ubiquitin-conjugating enzymes perform the second step in the ubiquitination reaction that targets a protein for degradation via the proteasome. The ubiquitination process covalently attaches ubiquitin, a short protein of 76 amino acids, to a lysine residue on the target protein. Once a protein has been tagged with one ubiquitin molecule, additional rounds of ubiquitination form a polyubiquitin chain that is recognized by the proteasome's 19S regulatory particle, triggering the ATP-dependent unfolding of the target protein that allows passage into the proteasome's 20S core particle, where proteases degrade the target into short peptide fragments for recycling by the cell. Applications: Ubiquitin conjugating enzyme fractions mammalian may be used in transferring the activated ubiquitin from e1 to the substrate through an additional high energy thiol ester intermediate e2-s-ubiquitin. ubiquitin-conjugating enzymes, also known as e2 enzymes and more rarely as ubiquitin-carrier enzymes, perform the second step in the ubiquitination reaction that targets a protein for degradation via the proteasome. Group: Enzymes. Synonyms: Ubiquitin con. Ubiquitin Conjugating Enzyme. Storage: -70°C. Source: Mammalian. Ubiquitin conjugating enzymes; Ubiquitin Conjugating Enzyme Fractions; E2 enzymes; ubiquitin-carrier enzymes. Cat No: NATE-0727. | |
| Rad6 Inhibitor (4-Amino-6-(phenylamino)-[1,3,5]triazin-2-yl)methyl-4-nitrobenzoate, (4-Amino-6-(phenylamino)-1,3,5-triazin-2-yl)methyl 4-nitrobenzoate, TZ9, TZ-9, TZ 9, HHR6 Inhibitor) | A cell-permeable triazine compound that directly targets human E2 Ubiquitin-conjugating enzyme Rad6B/HHR6B catalytic site via noncovalent interactions and effectively inhibits Rad6B-Ub thioester bond formation as well as subsequent substrate ubiquitination without affecting UbcH5B/UBE2D2-catalyzed BCA2 ubiquitination. Shown to inhibit the proliferation of high Rad6B-expressing MDA-MB-231 (IC50 = 6uM in 72h), but not the low Rad6B-expressing, non-transformed MCF10A, via G2/M arrest and apoptosis induction. Two known cellular Rad6 substrates, beta-catenin and PCNA, are reported to be downregulated following 24h inhibitor treatment in MDA-MB-231 cultures (0.5 to 5uM).CAS Number:002789-86-7. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. Molecular Formula: C??H??N?O?, Primary Target: Rad6B/HHR6B. US Biological Life Sciences. |  Worldwide |
| RING-type E3 ubiquitin transferase | The RING domain of E3 ubiquitin transferase serves as a mediator bringing the ubiquitin-charged E2 ubiquitin-conjugating enzyme and the acceptor protein together to enable the direct transfer of ubiquitin through the formation of an isopeptide bond between the C-terminal glycine residue of ubiquitin an the ε-amino group of an L-lysine residue of the acceptor protein. The RING-E3 domain does not form a catalytic thioester intermediate with ubiquitin (unlike the HECT domain, EC 2.3.2.26). RING-type ubiquitin transferases may occur as single-chain enzymes but also in dimeric forms or in multi-subunit assemblies. Group: Enzymes. Synonyms: RING E3 ligase (misleading); ubiquitin transferase RING E3. Enzyme Commission Number: EC 2.3.2.27. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2301; RING-type E3 ubiquitin transferase; EC 2.3.2.27; RING E3 ligase (misleading); ubiquitin transferase RING E3. Cat No: EXWM-2301. | |
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