Results 61 to 70 of about 1,849,171 (299)

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Inhibition of proteasomal deubiquitinases USP14 and UCHL5 overcomes tyrosine kinase inhibitor resistance in chronic myeloid leukaemia

Clinical and Translational Medicine, 2022
Background Chronic myeloid leukaemia (CML) is a haematological cancer featured by the presence of BCR‐ABL fusion protein with abnormal tyrosine kinase activation.
Liling Jiang, Qingyan He, Xin Chen, Aochu Liu, Wa Ding, Haichuan Zhang, Xinmei Chen, Huan Zhou, Yi Meng, Bingyuan Liu, Guanjie Peng, Chunyan Wang, Jinbao Liu, Xianping Shi   +13 more
doaj   +1 more source

Regulation of BRCA1 by protein degradation [PDF]

Oncogene, 1999
BRCA1, a tumor suppressor protein implicated in hereditary forms of breast and ovarian cancer, is transcriptionally regulated in a proliferation-dependent manner. In this study, we demonstrate a substantial role for proteolysis in regulating the BRCA1 steady-state protein level in several cell lines. N-acetyl-leu-leu-norleucinal (ALLN), an inhibitor of
M V, Blagosklonny, W G, An, G, Melillo, P, Nguyen, J B, Trepel, L M, Neckers   +5 more
openaire   +2 more sources

A conserved ubiquitin ligase of the nuclear envelope/endoplasmic reticulum that functions in both ER-associated and Mat a2 repressor degradation [PDF]

, 2001
Substrate discrimination in the ubiquitin–proteasome system is believed to be dictated by specific combinations of ubiquitin–protein ligases (E3s) and ubiquitin-conjugating enzymes (E2s).
Swanson, Rob
core   +2 more sources

ERdj5 is the ER reductase that catalyzes the removal of non-native disulfides and correct folding of the LDL receptor [PDF]

, 2013
ERdj5 is a member of the protein disulfide isomerase family of proteins localized to the endoplasmic reticulum (ER) of mammalian cells. To date, only a limited number of substrates for ERdj5 are known.
Braakman, Ineke, Bulleid, Neil John, Oka, Ojore Benedict Valentine, Pringle, Marie Anne, Schopp, Isabel Myriam   +4 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Protein degradation systems in platelets [PDF]

Thrombosis and Haemostasis, 2013
SummaryProtein synthesis and degradation are essential processes that allow cells to survive and adapt to their surrounding milieu. In nucleated cells, the degradation and/or cleavage of proteins is required to eliminate aberrant proteins. Cells also degrade proteins as a mechanism for cell signalling and complex cellular functions.
B F, Kraemer, A S, Weyrich, S, Lindemann
openaire   +2 more sources

Reversible Keap1 inhibitors are preferential pharmacological tools to modulate cellular mitophagy [PDF]

, 2017
Mitophagy orchestrates the autophagic degradation of dysfunctional mitochondria preventing their pathological accumulation and contributing to cellular homeostasis.
A Jain, A Morelli, A Moustapha, AE Dikalova, AK Prasad, AP Joselin, B Bekdeser, B Bingol, B Mishra, C Hu, C Jo, D Faccenda, D Marcotte, D Narendra, DA East, DP Narendra, F Strappazzon, G Ashrafi, H Katayama, HC Bertrand, I Kim, J Gatliff, J Gatliff, J Lee, J Li, J Yan, J-A Pan, J-Y Lee, JD Clarke, JD Hayes, K Palikaras, KL Cheung, L Baird, L Mastrangelo, LC Gomes, M Frank, M Lazarou, MV Tsiper, N Wakabayashi, ND Georgakopoulos, Q Jiang, RC Scaduto, RLA Vries de, S Holm, S Kovac, S Li, S Melser, SE Dickinson, T Saito, X Xie, Y Ichimura, Y Katsuragi, Y Wang, Z-Y Jiang   +53 more
core   +4 more sources

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source