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Dual RING E3 Architectures Regulate Multiubiquitination and Ubiquitin Chain Elongation by APC/C
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文摘

Cryo-EM shows mechanisms of polyubiquitination by cell-cycle regulator APC/C

Distinct cullin-RING-E2 architectures for multiubiquitination and chain elongation

RING activates UBE2C and binds substrate-linked ubiquitin to amplify processivity

RING delivers ubiquitin for K11-linked chain elongation by UBE2S placed by cullin

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