Results 101 to 110 of about 232,343 (304)

Attenuation of Influenza a Virus into Live Vaccines Through C‐End Degrons

Advanced Science, EarlyView.
Naturally occurring C‐end degrons are exploited to design proteolysis‐targeting live attenuated influenza vaccines. C‐end degron tagging of viral M1 protein promotes proteasome‐dependent degradation, resulting in robust attenuation in host cells while permitting scalable production in engineered cells.
Ping Wang, Le Li, Yunfang Chen, Le Tong, Zhen Li, Rong Yu, Quan Shen, Qikai Wang, Jihuan Hou, Qisi Zhang, Xu Si, Ning Wang, Demin Zhou, Wen‐xia Tian, Longlong Si   +14 more
wiley   +1 more source

Lactylation‐Driven YTHDC1 Alleviates MASLD by Suppressing PTPN22‐Mediated Dephosphorylation of NLRP3

Advanced Science, EarlyView.
In MASLD, YTHDC1 undergoes increased lactylation and ubiquitination, reducing its expression. AARS1 mediates lactylation at lysine 565, while disrupted binding to LDHA further promotes lactylation, suppressing YTHDC1. This downregulation enhances PTPN22 mRNA stability, leading to NLRP3 dephosphorylation and activation, which exacerbates inflammation ...
Feng Zhang, Linghua Zeng, Kunkun Zou, Keying Lin, Fangting Yao, Jinglun Song, Shumeng Zhang, Hanshu Feng, Zhichao Yang, Chunlei Wang, Hongtao Diao, Xue Kong, Tengfei Pan, Joonki Kim, Tianqi Duo, Linqiang Li, Yu Bian   +16 more
wiley   +1 more source

A Tyrosine Switch on NEDD4-2 E3 Ligase Transmits GPCR Inflammatory Signaling

Cell Reports, 2018
Summary: Ubiquitination is essential for protein degradation and signaling and pivotal to many physiological processes. Ubiquitination of a subset of G-protein-coupled receptors (GPCRs) by the E3 ligase NEDD4-2 is required for p38 activation, but how ...
Neil J. Grimsey, Rachan Narala, Cara C. Rada, Sohum Mehta, Bryan S. Stephens, Irina Kufareva, John Lapek, David J. Gonzalez, Tracy M. Handel, Jin Zhang, JoAnn Trejo   +10 more
doaj   +1 more source

Structural analysis of MDM2 RING separates degradation from regulation of p53 transcription activity [PDF]

, 2017
MDM2–MDMX complexes bind the p53 tumor-suppressor protein, inhibiting p53's transcriptional activity and targeting p53 for proteasomal degradation. Inhibitors that disrupt binding between p53 and MDM2 efficiently activate a p53 response, but their use in
A Plechanovová, A Plechanovová, Andreas K Hock, CS Chen, D Migliorini, D Shi, Danny T Huang, DC Scott, DE Christensen, Dominika Kowalczyk, E Branigan, E Meulmeester, Gary J Sibbet, H Dou, H Dou, H Kawai, H Kawai, I Ray-Coquard, J Momand, J Parant, JC Badciong, JD Oliner, JG Sanchez, JN Pruneda, K Itahana, K Linke, Karen H Vousden, KH Khoo, Koji Nomura, L Buetow, L Buetow, L Huang, LA Tollini, LC Storoni, LK Linares, LT Vassilev, M Andreeff, M Argentini, M Bista, M Kostic, Marta Klejnot, MG Koliopoulos, MHG Kubbutat, ML Choong, MS Dai, MS Dai, MV Poyurovsky, MW Jackson, N Minsky, N Zheng, P Dolezelova, P Emsley, P Roxburgh, PD Adams, PS Brzovic, Q Cheng, Q Cheng, Q Ding, R Honda, R Montes de Oca Luna, R Stad, R Stad, RA Finch, RK Geyer, S Iyappan, S Shangary, S Uldrijan, SN Jones, UM Moll, V Pant, W Kabsch, Y Pan   +71 more
core   +1 more source

RNF213 Is an Interferon‐Stimulated Gene That Targets Influenza A Virus NP and Activates MDA5 to Restrict Infection

Advanced Science, EarlyView.
RNF213 is characterized as a dual‐functional antiviral effector. It directly mediates the degradation of the influenza A virus nucleoprotein (NP) while simultaneously activating the MDA5‐mediated innate immune signaling pathway. This coordinated response establishes a powerful host defense system against viral infection. ABSTRACT Influenza A virus (IAV)
Haoning Li, Yuying Zhang, Jingjing Wang, Qianqian Zhang, Hailiang Sun, Fanhua Wei   +5 more
wiley   +1 more source

RNF8/UBC13 ubiquitin signaling suppresses synapse formation in the mammalian brain

Nature Communications, 2017
Ubiquitin ligases play critical roles in neuronal connectivity in the brain. Here, Valnegri and colleagues show that ubiquitin ligase RNF8 and ubiquitin-conjugating enzyme UBC13 regulate synapse number in cerebellar granule neurons and rodent cerebellar ...
Pamela Valnegri, Ju Huang, Tomoko Yamada, Yue Yang, Luis A. Mejia, Ha Y. Cho, Anna Oldenborg, Azad Bonni   +7 more
doaj   +1 more source

LMO7 Suppresses Tumor‐Associated Macrophage Phagocytosis of Tumor Cells Through Degradation of LRP1

Advanced Science, EarlyView.
LMO7 in tumor‐associated macrophages suppresses phagocytosis of tumor cells and limits cytotoxic T lymphocytes infiltration, fostering tumor progression. Mechanistically, LMO7 mediates the ubiquitination and degradation of the phagocytic receptor LRP1, impairing its ability to engulf tumor cells and driving macrophages toward an antitumor phenotype ...
Mengkai Li, Tao Wang, Yuwen Zhong, Zhiming Wang, Wei Li, Zejian Wang, Xinyi Yang, Yu Qiao, Jianfeng Xiang, Wei Gu, Zishu Wang, Lei Sun, Feng Qian   +12 more
wiley   +1 more source

XIAP Stabilizes DDRGK1 to Promote ER‐Phagy and Protects Against Noise‐Induced Hearing Loss

Advanced Science, EarlyView.
Mechanism of GAS‐mediated protection against noise‐induced hearing loss (NIHL). Noise exposure activates the ATF4/eIF2α axis, downregulating XIAP and promoting DDRGK1 degradation, thereby inhibiting ER‐phagy and leading to hair cell (HC) death. GAS treatment rescues XIAP and DDRGK1 expression, reactivating ER‐phagy to mitigate HC loss, synaptic damage,
Lin Yan, Yuhua Zhang, Jiawei Du, Yongjun Zhu, Wei Cao, Yongjie Wei, Han Wu, Shiyu Qiu, Shiyi Pan, Lian Chen, Pingping Liang, Renjie Chai, Jianming Yang, Qiaojun Fang   +13 more
wiley   +1 more source

BRCA1 Is a Histone-H2A-Specific Ubiquitin Ligase

Cell Reports, 2014
The RING domain proteins BRCA1 and BARD1 comprise a heterodimeric ubiquitin (E3) ligase that is required for the accumulation of ubiquitin conjugates at sites of DNA damage and for silencing at DNA satellite repeat regions. Despite its links to chromatin,
Reinhard Kalb, Donna L. Mallery, Conor Larkin, Jeffrey T.J. Huang, Kevin Hiom   +4 more
doaj   +1 more source

Biochemical and Genetic Studies of UBR3, a Ubiquitin Ligase with a Function in Olfactory and Other Sensory Systems [PDF]

, 2007
Our previous work identified E3 ubiquitin ligases, termed UBR1-UBR7, that contain the ~70-residue UBR box, a motif important for the targeting of N-end rule substrates.
Hellweg, Rainer, Hörtnagl, Heidi, Kwon, Yong Tae, Sohr, Reinhard, Tasaki, Takafumi, Varshavsky, Alexander, Xia, Zanxian   +6 more
core   +1 more source