Words similar to rbx
Example sentences for: rbx
How can you use “rbx” in a sentence? Here are some example sentences to help you improve your vocabulary:
SCF complexes are E3s composed of the Cullin family member Cul1 (Cdc53 in S. cerevisiae ), as well as, Skp1, Roc1 (also called Rbx1 or Hrt1) and one of the numerous F-box proteins that act as a receptor for the substrate (for review see [ 2 ] ).
Biochemical studies identified SCF SKP2, an E3 that mediates p27 ubiquitylation in vitro [ 20 21 ] . This complex consists of at least four proteins: SKP1, CUL1, HRT1 (=RBX1/ROC1), and SKP2.
All human cullins interact with HRT1/RBX1/ROC1 [ 7], are modified by NEDD8 [ 8], and have ubiquitin ligase activity in vitro [ 9].
SCF complexes share homologues of the core components cullin 1 (CUL1), SKP1, and the RING domain protein HRT1/RBX1/ROC1, which associate with different F-box proteins and ubiquitin-conjugating enzymes [ 1].
Studies in budding yeast identified SCF Cdc4p, an E3 ubiquitin ligase complex that mediates the ubiquitylation of the CDK inhibitor Sic1p [ 3 4 ] . SCF Cdc4pconsists of at least four proteins: the cullin Cdc53p, the RING domain protein Hrt1p/Rbx1p/Roc1p, the adapter protein Skp1p, and Cdc4p (reviewed in [ 1 ] ). Cdc4p contains two sequence motifs, which are conserved in a wide variety of so-called F-box proteins: C-terminal WD-repeats that are involved in binding the substrate Sic1p in a phosphorylation-dependent manner, and a central F-box [ 5 ] that interacts with Skp1p [ 6 7 ] . Cdc53p in turn binds to Skp1p and Hrt1p/Rbx1p/Roc1p, which bridges Cdc53p with the ubiquitin-conjugating enzyme Cdc34p/Ubc3p [ 6 8 9 10 11 12 ] . In vitro reconstitution demonstrated that SCF Cdc4p, Cdc34p, E1, ubiquitin, and ATP are sufficient to mediate Sic1p polyubiquitylation [ 6 7 ] .
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