Results 81 to 90 of about 120,389 (309)

Finding novel vulnerabilities of hypomorphic BRCA1 alleles

Molecular Oncology, EarlyView.
Synthetic lethality screens performed to identify novel vulnerabilities often model complete gene loss, thereby overlooking patient‐derived hypomorphic mutations. In this study, we have performed genome‐wide CRISPR screens on BRCA1 hypomorphic mutations, showing BRCA1I26A behaves like wild‐type, while BRCA1R1699Q mimics deficiency. Furthermore, we have
Anne Schreuder, Klaas de Lint, Hồ Mỹ Phúc Võ, Mariana M. Góis, Rosalie A. Kampen, Marta San Martin Alonso, Ilse Nootenboom, Veronica Garzero, Tiemen J. Wendel, Rob M. F. Wolthuis, Sylvie M. Noordermeer   +10 more
wiley   +1 more source

In vitro Protein Ubiquitination Assays

Bio-Protocol, 2013
Ubiquitin can be added to substrate protein as a protein tag by the concerted actions of ubiquitin activating enzyme (E1), ubiquitin conjugating enzyme (E2) and ubiquitin protein ligase (E3).
Qingzhen Zhao, Qi Xie
doaj   +1 more source

MITF maintains genome stability in nonmelanocyte lineages

Molecular Oncology, EarlyView.
MITF is essential for melanocyte survival and acts as an oncogene in 10%–20% of melanomas. We show that MITF depletion causes genome instability in nonmelanocytic cells, leading to LATS2‐mediated P53 activation, cell cycle arrest, and apoptosis. This study highlights the role of MITF as a genome maintenance factor beyond the melanocyte lineage. Created
Drifa H. Gudmundsdottir, Adrián López García de Lomana, Thejus B. Venkatesh, Kritika Kirty, Snaevar Sigurdsson, Linda Vidarsdottir, Ramile Dilshat, Erla Sveinbjornsdottir, Snaedis Ragnarsdottir, Daniel H Magnusson, Maria R. Bustos, Eirikur Steingrimsson, Thorkell Gudjonsson, Stefan Sigurdsson   +13 more
wiley   +1 more source

Data for positive selection test and co-evolutionary analysis on mammalian cereblon

Data in Brief, 2019
Cereblon (CRBN) is a substrate recognition subunit of the CRL4 E3 ubiquitin ligase complex, directly binding to specific substrates for poly-ubiquitination followed by proteasome-dependent degradation of proteins.
Wataru Onodera, Toru Asahi, Naoya Sawamura   +2 more
doaj   +1 more source

Dynamic control of selectivity in the ubiquitination pathway revealed by an ASP to GLU substitution in an intra-molecular salt-bridge network

, 2012
Ubiquitination relies on a subtle balance between selectivity and promiscuity achieved through specific interactions between ubiquitin-conjugating enzymes (E2s) and ubiquitin ligases (E3s).
Bonvin, Alexandre M. J. J., Sjoerd J de Vries, Adrien S. J. Melquiond (122976), H Th Marc Timmers, Alexandre M. J. J. Bonvin (18079), Adrien S J Melquiond, Wijk, Sjoerd van, Alexandre M J J Bonvin, Melquiond, Adrien S. J., Timmers, H. Th. Marc, Sjoerd J. de Vries (110976), H. Th. Marc Timmers (10936), Sjoerd J. L. van Wijk (122975), Vries, Sjoerd J. de, Sjoerd J L van Wijk   +14 more
core   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

Molecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu, Nicolas J. Niklaus, Anna M. Schläfli, Igor Tokarchuk, Magali Humbert, Federico La Manna, Bich Vu, David Maul, Ramin Radpour, Marianna Kruithof‐de Julio, Inti Zlobec, Jörn Dengjel, Bruce E. Torbett, Mario P. Tschan   +13 more
wiley   +1 more source

Characterisation of the Cullin-3 mutation that causes a severe form of familial hypertension and hyperkalaemia [PDF]

, 2015
Deletion of exon 9 from Cullin-3 (CUL3, residues 403-459: CUL3Δ403-459) causes pseudohypoaldosteronism type IIE (PHA2E), a severe form of familial hyperkalaemia and hypertension (FHHt).
Nichola L Figg, Thimo Kurz, Johnson, Clare, Yasmin, Nicola Wood, Al Maskari, Raya S, Frances‐Rose Schumacher, Kevin M O'Shaughnessy, James T Ferryman, Figg, Nichola L, Keith Siew, Knebel, Axel, Axel Knebel, Iris Hardege, Wood, Nicola, Figg, Nichola L., Sarah E Cleary, Ferryman, James T., O'Shaughnessy, Kevin M., Enchev, Radoslav, Schumacher, Frances-Rose, Cleary, Sarah E, Hardege, Iris, Al Maskari, Raya S., Kurz, Thimo, Siew, Keith, Cleary, Sarah E., Radoslav Enchev, Ferryman, James T, Clare Johnson, Jinwei Zhang, O'Shaughnessy, Kevin M, Zhang, Jinwei, Yasmin,, Raya S Al Maskari, Yasmin, [No Value]   +35 more
core   +1 more source

Effects of IGFBP4 deficiency on human preadipocyte proliferation and differentiation through the IGF1R/AKT pathway

FEBS Open Bio, EarlyView.
IGFBP4 knockdown (KD) impairs preadipocyte proliferation and is associated with IGF1R protein downregulation and attenuated AKT phosphorylation. The mechanisms by which IGFBP4 KD influences the IGF1R/AKT signaling pathway involve newly synthesized proteins and lysosomal degradation pathways. Created in BioRender.
Yujia Guo, Sandy Richter, Christoph Bach, Wieland Kiess, Anna Kirstein, Diana Le Duc, Antje Garten   +6 more
wiley   +1 more source

E3 ubiquitin ligases in B-cell malignancies [PDF]

Cellular Immunology, 2019
Ubiquitylation is a post-translational modification (PTM) that controls various cellular signaling pathways. It is orchestrated by a three-step enzymatic cascade know as the ubiquitin proteasome system (UPS). E3 ligases dictate the specificity to the substrates, primarily leading to proteasome-dependent degradation.
Jaewoo Choi, Luca Busino
openaire   +2 more sources

Multifunctional Gold Nanocluster‐Based PROTAC System for Targeted Degradation of Phosphorylated Tau and Modulation of Neuroinflammation in Alzheimer's Disease

Advanced Functional Materials, EarlyView.
We present a novel proteolysis‐targeting chimera (PROTAC) system conjugated to lipoic acid gold nanoclusters (PLANC), designed to degrade pTau, regulate inflammatory signaling, and effectively traverse the blood‐brain barrier (BBB). PLANC degraded pTau at various phosphorylation sites, with mechanistic studies confirming proteasome‐mediated degradation
Sarah Nevins, Callan D. McLoughlin, Wan‐Kyu Ko, Hye Kyu Choi, Brandon Conklin, Joshua B. Stein, Yannan Hou, Hongwon Kim, Rohan Khulbe, Ki‐Bum Lee   +9 more
wiley   +1 more source