Results 51 to 60 of about 11,576,305 (269)

Heterotropic regulation and negative homotropic cooperativity

FEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea, Francesco Angelucci, Federica Arnesano, Gianmarco Pascarella, Patrizio Di Micco, Andrea Bellelli   +5 more
wiley   +1 more source

Quantum Chemical Study of the Structure and Properties of a Quinolysine Alkaloid Derivative Molecule

Қарағанды университетінің хабаршысы. Физика сериясы
Derivatives of quinolisidine alkaloids obtained from plants of the genus Lupinus and Anabasis is one of such important compounds from the point of view of searching for new biologically active substances.
K.B. Kopbalina, A.S. Makhmutova, D.M. Turdybekov, M.B. Smirnov, N.Kh. Ibraev   +4 more
doaj   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

FEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn, Artur Osyczka, Marcin Sarewicz   +2 more
wiley   +1 more source

Rapidly Achieving Chemical Accuracy with Quantum Computing Enforced Language Model

Finding accurate ground state energy of a many-body system has been a major challenge in quantum chemistry. The integration of classic and quantum computers has shed new light on resolving this outstanding problem. Here we propose QiankunNet-VQE, a transformer based language models enforced with quantum computing to learn and generate quantum states ...
Shang, Honghui, Zeng, Xiongzhi, Gong, Ming, Wu, Yangju, Guo, Shaojun, Qian, Haoran, Zha, Chen, Fan, Zhijie, Yan, Kai, Zhu, Xiaobo, Li, Zhenyu, Luo, Yi, Pan, Jian-Wei, Yang, Jinlong   +13 more
openaire   +2 more sources

Selective elimination of quiescent cancer cells by dequalinium chloride via ROS‐mediated ferroptosis

FEBS Open Bio, EarlyView.
Dequalinium chloride (DQ) selectively eliminates quiescent cancer cells (QCCs) by amplifying mitochondrial ROS. QCCs exhibit elevated basal ROS and limited redox‐buffering capacity, making them vulnerable to further ROS increases. DQ‐induced ROS exceeds the tolerance threshold, triggering lipid peroxidation and ferroptosis, whereas proliferating cells ...
Kotaro Miyamoto, Shiori Sakai, Minori Endo, Terigele, Mizuho Niibori, Taiki Morita, Yu Goto, Arisa Yoshida, Tomohiro Tanaka, Ning Lin, Takahiro Kuchimaru, Hiroyuki Nakamura, Masahiro Inoue, Shinae Kizaka‐Kondoh, Tetsuya Kadonosono   +14 more
wiley   +1 more source

Molecular modeling for physical property prediction [PDF]

, 2006
Multiscale modeling is becoming the standard approach for process study in a broader framework that promotes computer aided integrated product and process design.
Joulia, Xavier, Gerbaud, Vincent
core  

Quantum Chemical Modeling of Three-Component System Cisplatin–Fullerenol–Quinine: HF-3c Quantum Chemical Modeling [PDF]

This study investigates rational approaches to the targeted delivery of chemotherapeutic drugs, with a focus on cisplatin, and explores methods to enhance their cytotoxic effects.
Potkin, V. I., Kuten, S. A., Pivovarchik, T. S., Styopin, S. G., Bezyazychnaya, T. V., Mukusheva, G. K., Akishina, E. A., Soldatov, A. G., Migas, D. B., Aliyeva, M. R., Nizovtsev, A. P., Kulchitsky, V. A., Babichev, L. F., Dikusar, E. A., Ermak, D. V., Pushkarchuk, A. L., Kilin, S. Ya.   +16 more
core   +1 more source

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

FEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source