Protein
SUMO-conjugating enzyme UBC9-B
Function
Accepts the ubiquitin-like proteins sumo1, sumo2 and sumo3 from the uble1a-uble1b E1 complex and catalyzes their covalent attachment to other proteins with the help of an E3 ligase such as ranbp2 or cbx4. Essential for nuclear architecture and chromosome segregation (By similarity). Mediates nuclear localization of vsx1. Required for progression through mitosis during organogenesis.
Similarity
Belongs to the ubiquitin-conjugating enzyme family.
Sequence
MSGIALSRLAQERKAWRKDHPFGFVAVPTKNPDGTMNLMNWECAIPGKKGTPWEGGLFKLRMLFKDDYPSSPPKCKFEPPLFHPNVYPSGTVCLSILEEDKDWRPAITIKQILLGIQELLNEPNIQDPAQAEAYTIYCQNRVEYEKRVRAQAKKFSP