background:
This gene encodes a member of the ubiquitin-conjugating enzyme family. The encoded protein is able to form a thiol ester linkage with ubiquitin in a ubiquitin activating enzyme-dependent manner, a characteristic property of ubiquitin carrier proteins. [provided by RefSeq, Jul 2008]
Function:
Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. Catalyzes 'Lys-11'-linked polyubiquitination. Acts as an essential factor of the anaphase promoting complex/cyclosome (APC/C), a cell cycle-regulated ubiquitin ligase that controls progression through mitosis. Acts by specifically elongating 'Lys-11'-linked polyubiquitin chains initiated by the E2 enzyme UBE2C/UBCH10 on APC/C substrates, enhancing the degradation of APC/C substrates by the proteasome and promoting mitotic exit. Also acts by elongating ubiquitin chains initiated by the E2 enzyme UBE2D1/UBCH5 in vitro; it is however unclear whether UBE2D1/UBCH5 acts as a E2 enzyme for the APC/C in vivo. Also involved in ubiquitination and subsequent degradation of VHL, resulting in an accumulation of HIF1A. In vitro able to promote polyubiquitination using all 7 ubiquitin Lys residues, except 'Lys-48'-linked polyubiquitination.
Subunit:
Component of the APC/C complex. Interacts with CDC20, FZR1/CDH1 and VHL.
Post-translational modifications:
Autoubiquitinated by the APC/C complex during G1, leading to its degradation by the proteasome.
Similarity:
Belongs to the ubiquitin-conjugating enzyme family.
Database links:
Entrez Gene: 617703 Cow
Entrez Gene: 27338 Human
Entrez Gene: 77891 Mouse
Entrez Gene: 292588 Rat
GenBank: NP_055316.2 Human
Omim: 610309 Human
SwissProt: Q1RML1 Cow
SwissProt: Q16763 Human
SwissProt: Q921J4 Mouse
SwissProt: B5DFI8 Rat
Unigene: 396393 Human
Unigene: 389787 Mouse
Unigene: 120398 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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