Results 101 to 110 of about 118,443 (293)

Role of SUMO-1 modification in transcriptional activation [PDF]

, 2012
In unstimulated cells, the transcription factor NF-κB is held in the cytoplasm in an inactive state by IκB inhibitor proteins. Activation of NF--KB is mediated by signal induced degradation of IκBα via the ubiquitin proteasome-dependent pathway ...
Pinto Desterro, Maria Joana
core  

Harnessing MDM2‐Mediated Targeted Degradation of Transcriptional and Epigenetic Machinery to Disrupt Oncogenic Addictions in Pediatric Sarcoma

Advanced Science, EarlyView.
MDM2 dependency in pediatric sarcomas is driven by a novel p53‐independent oncogenic cistrome alongside canonical p53 pathway suppression. This study introduces MDM2‐recruiting transcriptional and epigenetic machinery degraders (MDM2‐TEMADs) as a novel precision oncology modality.
Jiawei Zhou, Xian Guan, Nan Li, Ying Zhang, Long Xie, Xingze Huang, Zhipeng Zhu, Zhuolin Ren, Xiaoyan Yu, Hanjun Guo, Yuanfang Wu, Lin Ma, Suya Zheng, Jingyao Zhang, Jiyang Liu, Victor Kuanmin Lee, Wenhao Chen, H. Phillip Koeffler, Jinhu Wang, Xin Han, Ye Chen, Liang Xu   +21 more
wiley   +1 more source

The ataxia (axJ) mutation causes abnormal GABAA receptor turnover in mice [PDF]

, 2009
Ataxia represents a pathological coordination failure that often involves functional disturbances in cerebellar circuits. Purkinje cells (PCs) characterize the only output neurons of the cerebellar cortex and critically participate in regulating motor ...
Kneussel Matthias, Loebrich, S, Sven Loebrich, Hevers, Wulf, Michaela Schweizer, Eilers, Jens, Đikić, Ivan, Corinna Lappe-Siefke, Wilson, Scott M., Scott M Wilson, Waidmann Oliver B., Fehr Susanne, Schweizer, M, Kneussel, Matthias, Oliver B Waidmann, Fritschy Jean-Marc, Jean-Marc Fritschy, Wilson, S M, Schweizer Michaela, Jens Eilers, Eilers, J, Fritschy, Jean-Marc, Ivan Dikic, Fritschy, J M, Dikic, I, Schweizer, Michaela, Eilers Jens, Susanne Fehr, Waidmann, O B, Wilson Scott M., Fehr, Susanne, Matthias Kneussel, Fehr, S, Lappe-Siefke, Corinna, Waidmann, Oliver, Dikic Ivan, Loebrich Sven, Hevers Wulf, Lappe-Siefke, C, Hevers, W, Kneussel, M, Löbrich, Sven, Wulf Hevers, Lappe-Siefke Corinna   +43 more
core   +1 more source

The Ubiquitin–Proteasome System and Cardiovascular Disease [PDF]

, 2012
Over the past decade, the role of the ubiquitin–proteasome system (UPS) has been the subject of numerous studies to elucidate its role in cardiovascular physiology and pathophysiology. There have been many advances in this field including the use of proteomics to achieve a better understanding of how the cardiac proteasome is regulated.
Saul R, Powell, Joerg, Herrmann, Amir, Lerman, Cam, Patterson, Xuejun, Wang   +4 more
openaire   +2 more sources

Dual Cytoplasmic and Chloroplastic Mechanisms Fine‐Tune Chloroplast Division through ARC3 Protein Stability

Advanced Science, EarlyView.
ARC3 levels are controlled by cytosolic and chloroplast proteolytic systems. PUB52 mediates ARC3 precursor ubiquitination and degradation in the cytosol, while CLPC1 promotes ARC3 degradation in chloroplasts, where ARC2 protects ARC3 from excessive breakdown. Disrupting these components causes chloroplast division defects, placing them upstream of ARC3.
Yang Yuan, Denghao Xiang, Ruiying Li, Zhichuang Yue, Zhipeng Wang, Honghong Hu   +5 more
wiley   +1 more source

High-throughput siRNA screening applied to the ubiquitin-proteasome system [PDF]

, 2016
The ubiquitin-proteasome system is the major pathway for intracellular protein degradation in eukaryotic cells. Due to the large number of genes dedicated to the ubiquitin-proteasome system, mapping degradation pathways for short lived proteins is a ...
Poulsen, Esben Guldahl, Nielsen, Sofie V., Esben G. Poulsen, Sofie V. Nielsen, Pietras, Elin J., Cornelia Steinhauer, Johansen, Jens Vilstrup, Elin J. Pietras, Hartmann-Petersen, Rasmus, Steinhauer, Cornelia, Jens V. Johansen, Rasmus Hartmann-Petersen   +11 more
core   +1 more source

FUCA2 Sustains AKT Signaling and Suppresses Senescence by Antagonizing FUT3‐Mediated ErbB3 Fucosylation in Lung Adenocarcinoma

Advanced Science, EarlyView.
ABSTRACT While targeted therapies have improved outcomes in lung adenocarcinoma (LUAD), many patients still lack targetable mutations. Here, we identified alpha‐L‐fucosidase 2 (FUCA2) as a crucial driver of LUAD by preventing cellular senescence. Mechanistically, through the restriction of fucosyltransferase 3 (FUT3)‐mediated α‐1,3‐fucosylation of ...
Lu Chen, Jintao Guo, Fei Li, Mingjie Gao, Runyang Li, Zhaozhang Huang, Yaolin Zheng, Chunyi Gao, Jihuan Hou, Qiang Yu, Bowen Zheng, Xuemei Chen, Wenqing Zhang, Xiaoting Hong, Yali Zheng, Daxuan Wang, Qiyuan Li, Tianhui Hu, Yan‐yan Zhan   +18 more
wiley   +1 more source

Interferon y Stimulation Modulates the Proteolytic Activity and Cleavage Site Preference of 20S Mouse Proteasomes [PDF]

, 1994
The proteasome is a 700-kD multisubunit enzyme complex with several proteolytically active sites. The enzyme complex is involved in both ubiquitin-dependent and -independent protein degradation and may contribute to the processing of antigens presented ...
Multhaupt, Gerd, Koszinowski, Ulrich H., Kloetzel, Peter-M., Boes, Bettina, Ruppert, Thomas, Hengel, Hartmut   +5 more
core  

Neurodegenerative stress related mitochondrial proteostasis [PDF]

, 2015
1.1 Background: Mitochondria are the main site of energy production in most cells. Furthermore, they are involved in a multitude of other essential cellular processes, such as regulating the cellular calcium pool, lipid metabolism and programmed cell ...
Fang, Lei
core   +1 more source

Loss of E3 Ubiquitin Ligase RINES via CpG Methylation Relieves Suppression of STAT3 and MYC, Facilitating Multiple Tumorigeneses

Advanced Science, EarlyView.
Dysregulated protein modifications drive tumorigenesis. RINES, an E3 ubiquitin ligase, represses tumor cell proliferation and metastasis by facilitating RING domain‐dependent, ubiquitin–proteasome‐mediated degradation of STAT3 and MYC, which consequently restrains cancer stemness and oncogenic progression.
Lili Li, Ka Man Ng, Xingsheng Shu, Xiaoxue Chai, Kai Yau Wong, Gopesh Srivastava, Anthony T.C. Chan, Wai Yee Chan, Qian Tao   +8 more
wiley   +1 more source