Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
S-ubiquitinyl-[E1 ubiquitin-activating enzyme]-L-cysteine + [E2 ubiquitin-conjugating enzyme]-L-cysteine | Homo sapiens | - |
[E1 ubiquitin-activating enzyme]-L-cysteine + S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
HEK-293 cell | - |
Homo sapiens | - |
HeLa cell | - |
Homo sapiens | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
S-ubiquitinyl-[E1 ubiquitin-activating enzyme]-L-cysteine + [E2 ubiquitin-conjugating enzyme]-L-cysteine | - |
Homo sapiens | [E1 ubiquitin-activating enzyme]-L-cysteine + S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine | - |
? |
Synonyms | Comment | Organism |
---|---|---|
E2 ubiquitin conjugating enzyme | - |
Homo sapiens |
UBE2D | - |
Homo sapiens |
UBE2L3 | - |
Homo sapiens |
UBE2N | - |
Homo sapiens |
UBE2R1 | - |
Homo sapiens |
General Information | Comment | Organism |
---|---|---|
malfunction | knockdown of E2 enzymes delays ubiquitylation and degradation of mitochondrial substrates like p62 and the adaptor protein p62/SQSTM1. Depletion of UBE2R1 enhances the translocation of Parkin to, and clustering of, mitochondria | Homo sapiens |
physiological function | the cognate E2 coenzymes of E3 enzyme Parkin regulate the activation, translocation and enzymatic functions of Parkin during mitochondrial quality control. UBE2D family members and UBE2L3 redundantly charge the RING-HECT hybrid ligase Parkin with ubiquitin, resulting in its initial activation and translocation to mitochondria. UBE2N primarily mediates the proper clustering of mitochondria, a prerequisite for degradation. Depletion of UBE2R1 results in enhanced Parkin translocation and clustering upon mitochondrial uncoupling | Homo sapiens |
physiological function | E2 enzymes regulate activation and mitochondrial translocation of Parkin. UBE2L3 is able to charge Parkin with ubiquitin and are essential for its initial activation | Homo sapiens |