Results 81 to 90 of about 28,234 (247)

Mechanism and function of deubiquitinating enzymes

Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2004
Attachment of ubiquitin to proteins is a crucial step in many cellular regulatory mechanisms and contributes to numerous biological processes, including embryonic development, the cell cycle, growth control, and prevention of neurodegeneration. In these diverse regulatory settings, the most widespread mechanism of ubiquitin action is probably in the ...
Amerik, Alexander Y., Hochstrasser, Mark
openaire   +2 more sources

Ubp8 and SAGA Regulate Snf1 AMP kinase Activity [PDF]

Posttranslational modifications of histone proteins play important roles in the modulation of gene expression. The Saccharomyces cerevisiae (yeast) 2-MDa SAGA (Spt-Ada-Gcn5) complex, a well-studied multisubunit histone modifier, regulates gene expression
Wilson, Marenda A., Koutelou, Evangelia, Hirsch, Calley, Akdemir, Kadir, Schibler, Andria, Barton, Michelle Craig, Dent, Sharon Y. R.   +6 more
core   +1 more source

mTORC2 Phosphorylation of GSDME‐N Drives Cullin4B‐Mediated Proteasomal Degradation to Suppress Pyroptosis and Confer Radioresistance in Small Cell Lung Cancer

Advanced Science, EarlyView.
Radioresistance severely limits the efficacy of therapies for small cell lung cancer (SCLC). This study reveals a novel mechanism of resistance driven by the active suppression of pyroptosis. Specifically, the mTORC2 complex directly phosphorylates GSDME‐N and promotes its CUL4B‐mediated ubiquitination and proteasomal degradation.
Qing‐qing Xu, Ci‐ming Sun, Sui‐xian Zhang, Rui Li, Chen‐fei Wu, Zai‐shan Lin, Li Li, Run‐zhe Chen, Qi‐wen Li, Yuan‐yuan Chen, Xuan Li, Ming Chen   +11 more
wiley   +1 more source

Heat Shock Protein 90: From Molecular Chaperone Function to Therapeutic Targeting in Malignancies

Advanced Science, EarlyView.
In this review, an integrated conceptual framework linking HSP90's molecular chaperone functions to its pathological roles in cancer is proposed. HSP90 serves as a central node that integrates oncogenic signaling, buffers proteotoxic stress, maintains cancer stem cell plasticity, and shapes tumor‐immune interactions, all of which converge to drive ...
Beibei Zhang, Xinxin Zou, Jiansong Zhou, Qinmiao Sun, Dahua Chen   +4 more
wiley   +1 more source

MdmX is a substrate for the deubiquitinating enzyme USP2a [PDF]

Oncogene, 2009
It has previously been shown that ubiquitin-specific protease 2a (USP2a) is a regulator of the Mdm2/p53 pathway. USP2a binds to Mdm2 and can deubiquitinate Mdm2 without reversing Mdm2-mediated p53 ubiquitination. Overexpression of USP2a causes accumulation of Mdm2 and promotes p53 degradation. We now show that MdmX is also a substrate for USP2a.
Allende-Vega, N., Sparks, A., Lane, D. P., Saville, M. K.   +3 more
openaire   +3 more sources

The centrosomal deubiquitylase USP21 regulates Gli1 transcriptional activity and stability [PDF]

USP21 is a centrosome-associated deubiquitylase (DUB) that has been implicated in the formation of primary cilia - crucial organelles for the regulation of the Hedgehog (Hh) signaling pathway in vertebrates. Here, we identify KCTD6 - a cullin-3 E3-ligase
Bertsoulaki, Erithelgi, Clague, Michael J., Cucchi, Danilo, DE SMAELE, Enrico, Heride, Claire, Rigden, Daniel J., Urbé, Sylvie   +6 more
core   +1 more source

Intramolecular Interactions between Folded and Disordered Regions Shape Ubiquilin Structure and Function

Advanced Science, EarlyView.
Ubiquilin (UBQLN), like many other human proteins, contains both well‐folded and disordered regions. Here, we show that intramolecular interactions between disordered regions and folded domains modulate between open and closed topologies of UBQLN proteins, altering their structure and function.
Jessica K. Niblo, Nirbhik Acharya, Maxwell B. Watkins, Carlos A. Castañeda, Shahar Sukenik   +4 more
wiley   +1 more source

Role of Deubiquitinating Enzymes in DNA Repair [PDF]

Molecular and Cellular Biology, 2016
Both proteolytic and nonproteolytic functions of ubiquitination are essential regulatory mechanisms for promoting DNA repair and the DNA damage response in mammalian cells. Deubiquitinating enzymes (DUBs) have emerged as key players in the maintenance of genome stability. In this minireview, we discuss the recent findings on human DUBs that participate
Kee, Younghoon, Huang, Tony T.
openaire   +3 more sources

Screening of DUB activity and specificity by MALDI-TOF mass spectrometry [PDF]

Deubiquitylases (DUBs) are key regulators of the ubiquitin system which cleave ubiquitin moieties from proteins and polyubiquitin chains. Several DUBs have been implicated in various diseases and are attractive drug targets. We have developed a sensitive
A Iphofer, A Kovalenko, A van der Horst, AC Faesen, AK Al-Hakim, AM Oliveira, B Nicholson, C Kondapalli, C Reverdy, D Bungert, D Komander, D Komander, D Komander, DW Lee, E Graner, E Szajli, EW Harhaj, F Colland, F El Oualid, F Ikeda, FE Reyes-Turcu, G Nicastro, H Mistry, HB Kramer, J Chen, J Hemelaar, J Liang, J McCullough, JF McGouran, JW Pierce, K Keusekotten, K Saigoh, L Daviet, LC Dang, LV Pham, M Altun, M Colombo, M Karas, M Li, M Pulvino, MJ Clague, MJ Lee, MK Hospenthal, N Krishnan, NL Anderson, OW Huang, P Cohen, P Rufenacht, R Ekkebus, RA Horton, S Strickson, S Virdee, SD Sherrod, SJ Orcutt, SM Nijman, SM Nijman, SP Shah, TE Messick, TE Mevissen, U Hassiepen, Y Liu, Y Takano, Y Zhang   +62 more
core   +1 more source

CCT2 Promotes Prostate Cancer Progression Through EIF3F‐Dependent Stabilization of FASN

Advanced Science, EarlyView.
ABSTRACT Prostate cancer (PCa) is increasingly recognized to be driven by dysregulated lipid metabolism. Although fatty acid synthase (FASN) is highly expressed in PCa, the mechanisms governing FASN protein stability and its functional integration into oncogenic lipid metabolism remain poorly defined.
Shun Xu, Yifan Zhang, Haolin Li, Shengyu Zhao, Xiaoran Dai, Qili Xu, Mintian Fei, Chun Li, Zhihui Zou, Baojun Wang, Li Zhang, Hui Wang, Ligang Zhang, Chaozhao Liang   +13 more
wiley   +1 more source