regulation of cellular response to hypoxia / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / RHOBTB3 ATPase cycle / negative regulation of receptor signaling pathway via JAK-STAT / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / target-directed miRNA degradation ...regulation of cellular response to hypoxia / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / RHOBTB3 ATPase cycle / negative regulation of receptor signaling pathway via JAK-STAT / cullin-RING ubiquitin ligase complex / cellular response to chemical stress / Cul7-RING ubiquitin ligase complex / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / target-directed miRNA degradation / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / transcription elongation factor activity / elongin complex / positive regulation of protein autoubiquitination / RNA polymerase II transcription initiation surveillance / protein neddylation / Replication of the SARS-CoV-1 genome / NEDD8 ligase activity / VCB complex / negative regulation of response to oxidative stress / Cul5-RING ubiquitin ligase complex / SCF ubiquitin ligase complex / Cul2-RING ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / negative regulation of type I interferon production / intracellular membraneless organelle / Cul4A-RING E3 ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul4-RING E3 ubiquitin ligase complex / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / SUMOylation of ubiquitinylation proteins / negative regulation of mitophagy / Prolactin receptor signaling / RNA polymerase II C-terminal domain binding / cullin family protein binding / P-TEFb complex binding / negative regulation of DNA damage checkpoint / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / negative regulation of transcription elongation by RNA polymerase II / histone H4 reader activity / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / host-mediated suppression of viral transcription / protein monoubiquitination / positive regulation of G2/M transition of mitotic cell cycle / Tat-mediated elongation of the HIV-1 transcript / negative regulation of signal transduction / Formation of HIV-1 elongation complex containing HIV-1 Tat / ubiquitin-like ligase-substrate adaptor activity / positive regulation of T-helper 17 cell lineage commitment / Formation of HIV elongation complex in the absence of HIV Tat / protein K48-linked ubiquitination / RNA Polymerase II Transcription Elongation / Nuclear events stimulated by ALK signaling in cancer / Formation of RNA Pol II elongation complex / Regulation of BACH1 activity / : / negative regulation of TORC1 signaling / transcription-coupled nucleotide-excision repair / RNA Polymerase II Pre-transcription Events / regulation of cellular response to insulin stimulus / positive regulation of TORC1 signaling / RNA polymerase II CTD heptapeptide repeat kinase activity / post-translational protein modification / negative regulation of autophagy / intrinsic apoptotic signaling pathway / negative regulation of insulin receptor signaling pathway / protein serine/threonine kinase binding / T cell activation / Degradation of DVL / condensed nuclear chromosome / Recognition of DNA damage by PCNA-containing replication complex / Degradation of GLI1 by the proteasome / transcription corepressor binding / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / DNA Damage Recognition in GG-NER / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / transcription coregulator activity / positive regulation of cell differentiation / cellular response to amino acid stimulus / TP53 Regulates Transcription of DNA Repair Genes / Inactivation of CSF3 (G-CSF) signaling / transcription initiation at RNA polymerase II promoter / Degradation of beta-catenin by the destruction complex / transcription elongation by RNA polymerase II / Evasion by RSV of host interferon responses / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / NOTCH1 Intracellular Domain Regulates Transcription / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / positive regulation of transcription elongation by RNA polymerase II / Formation of TC-NER Pre-Incision Complex 類似検索 - 分子機能
ジャーナル: Sci Adv / 年: 2024 タイトル: Mechanism of degrader-targeted protein ubiquitinability. 著者: Charlotte Crowe / Mark A Nakasone / Sarah Chandler / Conner Craigon / Gajanan Sathe / Michael H Tatham / Nikolai Makukhin / Ronald T Hay / Alessio Ciulli / 要旨: Small-molecule degraders of disease-driving proteins offer a clinically proven modality with enhanced therapeutic efficacy and potential to tackle previously undrugged targets. Stable and long-lived ...Small-molecule degraders of disease-driving proteins offer a clinically proven modality with enhanced therapeutic efficacy and potential to tackle previously undrugged targets. Stable and long-lived degrader-mediated ternary complexes drive fast and profound target degradation; however, the mechanisms by which they affect target ubiquitination remain elusive. Here, we show cryo-EM structures of the VHL Cullin 2 RING E3 ligase with the degrader MZ1 directing target protein Brd4 toward UBE2R1-ubiquitin, and Lys at optimal positioning for nucleophilic attack. In vitro ubiquitination and mass spectrometry illuminate a patch of favorably ubiquitinable lysines on one face of Brd4, with cellular degradation and ubiquitinomics confirming the importance of Lys and nearby Lys/Lys, identifying the "ubiquitination zone." Our results demonstrate the proficiency of MZ1 in positioning the substrate for catalysis, the favorability of Brd4 for ubiquitination by UBE2R1, and the flexibility of CRL2 for capturing suboptimal lysines. We propose a model for ubiquitinability of degrader-recruited targets, providing a mechanistic blueprint for further rational drug design.