Results 41 to 50 of about 46,713 (191)

The crystal structure of Pneumolysin at 2.0 Å resolution reveals the molecular packing of the pre-pore complex [PDF]

, 2015
Pneumolysin is a cholesterol-dependent cytolysin (CDC) and virulence factor of Streptococcus pneumoniae. It kills cells by forming pores assembled from oligomeric rings in cholesterol-containing membranes.
Andrew, Peter W, El-Mezgueldi, Mohammed, Faraj, Bayan H A, Gingras, Alexandre R, Lonnen, Rana, Marshall, Jamie E, Moody, Peter C E, Sheikh, Md. Arif, Wallis, Russell   +8 more
core   +1 more source

Structural Basis of Sequential Enantioselective Epoxidation by a Flavin‐Dependent Monooxygenase in Lasalocid A Biosynthesis

Angewandte Chemie, EarlyView.
Lsd18 is a flavin‐dependent monooxygenase from Streptomyces lasalocidi that performs two enantioselective epoxidations during lasalocid A biosynthesis. X‐ray crystal structures of Lsd18 bound to a substrate and product analogue illuminate how this enzyme performs multiple epoxidations on the same substrate molecule and how it controls stereoselectivity.
Qian Wang, Yaming Deng, Dayan Viera, Xiaopeng Liu, Ning Liu, Yulu Hu, Xiangdong Hu, Hao Wei, Quan Zhou, Ting Lan, Wei He, Xi Chen, Chu‐Young Kim   +12 more
wiley   +2 more sources

PSMD14 Stabilizes SLC7A11 to Ameliorate Glucocorticoid‐Induced Osteoporosis by Suppressing Osteocyte Ferroptosis

Advanced Science, EarlyView.
Glucocorticoid‐induced osteoporosis (GIOP) triggers osteocyte ferroptosis via SLC7A11 degradation. PSMD14 stabilizes SLC7A11 by counteracting glucocorticoid‐driven ubiquitination, preserving cystine uptake and glutathione synthesis. AAV‐mediated PSMD14 delivery or its agonist Pantethine rescues osteocyte survival and bone loss in GIOP mice.
Yifeng Shi, Qian Tang, Sunren Sheng, Hongyi Jiang, Chen Jin, Chencheng Zhou, Chenglong Xie, Lin Zheng, Di Zhang, Hui Xu, Cong Xu, Haiwei Ma, Guangheng Xiang, Wenfei Ni, Xiaoyun Pan, Lei Yang, Huazi Xu, Yu Qian, Aimin Wu, Xiangyang Wang, Gang Zheng   +20 more
wiley   +1 more source

Development of an Organoautocatalyzed Double σ‐Bond C(sp2)‐N Transamination Metathesis Reaction

Angewandte Chemie, EarlyView.
Organoautocatalyzed transamination metathesis of cyclic tertiary amines is disclosed as a high‐yielding, scalable reaction that proceeds under mild, catalyst‐free conditions. It operates via a multi‐step domino reaction mechanism, where an in situ‐formed pyrrolidinium salt functions as a HBD organoautocatalyst.
Volker Klein, Florian Schuster, Jonas Amthor, Harald Maid, Prabhakar Bijalwan, Fahmi Himo, Stefano Santoro, Svetlana B. Tsogoeva   +7 more
wiley   +2 more sources

Enhancing the Protein Stability of an Anticancer VHH‐Fc Heavy Chain Antibody through Computational Modeling and Variant Design

Advanced Science, EarlyView.
In this study, a computational pipeline is developed to systematically evaluate the conformational stability, disulfide bond reduction state, and aggregation and degradation tendencies of an anticancer VHH‐Fc fusion antibody. Based on the mechanistic insights, antibody variants with enhanced stability and increased yield are successfully designed. This
Yuan Fang, Menghua Song, Tianning Pu, Xiaoqing Song, Kailu Xu, Pengcheng Shen, Ting Cao, Yiman Zhao, Simon Hsu, Dongmei Han, Qiang Huang   +10 more
wiley   +1 more source

Catch, Cut, or Block? Versatile 4‐N‐Derivatized Sialyl Glycosides for Influenza Virus Neuraminidase Detection and Purification

Angewandte Chemie, EarlyView.
Sialyl glycosides containing 4‐N‐derivatized sialic acids synthesized by a highly efficient one‐pot two‐enzyme (OP2E) chemoenzymatic sialylation strategy have been shown to be versatile probes. They can resist sialidase cleavage, be selective substrates by influenza sialidases, or be nanomolar substrate analog‐based inhibitors and affinity ligands ...
Yue Yuan, Hai Yu, Anand Kumar Agrahari, Jin Gao, Hyeog Kang, Robert Daniels, Xi Chen   +6 more
wiley   +2 more sources

Novel Cyano‐Artemisinin Dimer ZQJ29 Targets PARP1 to Induce Ferroptosis in Pancreatic Cancer Treatment

Advanced Science, EarlyView.
A novel artemisinin derivative dimer has been synthesized, and its significant potential as an anti‐cancer agent. The study indicated that ZQJ29 effectively inhibited the proliferation of pancreatic cancer cells in vitro and in vivo. Additionally, these investigations have unveiled ZQJ29 as a new potent PARP1 inhibitor, with the capability to induce ...
Jianping Chen, Lingyun Yue, Yanna Pan, Bingying Jiang, Junfeng Wan, Haixia Lin, Fujiang Guo, Huiyu Li, Yajuan Li, Qingjie Zhao   +9 more
wiley   +1 more source

A comprehensive evaluation of the activity and selectivity profile of ligands for RGD-binding integrins [PDF]

, 2017
Integrins, a diverse class of heterodimeric cell surface receptors, are key regulators of cell structure and behaviour, affecting cell morphology, proliferation, survival and differentiation.
Cavalcanti-Adam, Elisabetta Ada, Geiger, Benjamin, Kapp, Tobias G., Kessler, Horst, Maltsev, Oleg V., Mas Moruno, Carlos, Neubauer, Stefanie, Notni, Johannes, Rechenmacher, Florian, Reuning, Ute, Spatz, Joachim, Wester, Hans-Jürgen, Zarka, Revital   +12 more
core   +2 more sources

Loss of STARD7 Triggers Metabolic Reprogramming and Cell Cycle Arrest in Breast Cancer

Advanced Science, EarlyView.
Breast cancer cells undergo metabolic and transcriptomic reprogramming to support aberrant cell proliferation. Their mitochondria rely on the transfer of phosphatidylcholine from the endoplasmic reticulum to their membranes by STARD7, a candidate upregulated in breast cancer, to be functional.
Ewelina Dondajewska, Paula Allepuz‐Fuster, Chloé Maurizy, Alexandre Hego, Sandra Ormenese, Quentin Lion, Arnaud Blomme, Pierre Close, Arnaud Lavergne, Latifa Karim, Marc Thiry, Ivan Nemazanyy, Roopesh Krishnankutty, Jair Marques Jr, Alex von Kriegsheim, Nathaniel F. Henneman, Ganna Panasyuk, Kateryna Shostak, Alain Chariot   +18 more
wiley   +1 more source

Distinct amino acid compositional requirements for formation and maintenance of the [PSI+] prion in yeast [PDF]

, 2015
Multiple yeast prions have been identified that result from the structural conversion of proteins into a self-propagating amyloid form. Amyloid-based prion activity in yeast requires a series of discrete steps.
Ben-Musa, Zobaida, Gruca, Margaret, MacLea, Kyle S., Paul, Kacy R., Ross, Eric D., Shattuck, Jenifer E., Waechter, Aubrey   +6 more
core   +2 more sources