Results 31 to 40 of about 157,296 (336)

Electrodes modified with lipid membranes to study quinone oxidoreductases

, 2009
Quinone oxidoreductases are a class of membrane enzymes that catalyse the oxidation or reduction of membrane-bound quinols/quinones. The conversion of quinone/quinol by these enzymes is difficult to study because of the hydrophobic nature of the enzymes ...
Jeuken, LJC, Weiss, SA
core   +1 more source

Origin and evolution of water oxidation before the last common ancestor of the Cyanobacteria [PDF]

, 2015
Photosystem II, the water oxidizing enzyme, altered the course of evolution by filling the atmosphere with oxygen. Here, we reconstruct the origin and evolution of water oxidation at an unprecedented level of detail by studying the phylogeny of all D1 ...
A. William Rutherford, Anisimova, Arato, Arnold, Bader, Beanland, Blankenship, Campbell, Cardona, Cardona, Chu, Chu, Clausen, Cox, Criscuolo, Cser, Dagan, Dau, Debus, Debus, Deusch, Diner, Dismukes, Erickson, Ferreira, Fine, Flannery, Gan, Gan, Giorgi, Gould, Gouy, Guindon, Gupta, Guskov, Hasegawa, Hillier, Hoganson, Hohmann-Marriott, Huson, Ishikita, Ishikita, James W. Murray, Jia, Johnson, Kiss, Klimov, Kopp, Koyama, Kulkarni, Kuroda, Lambreva, Larom, Larsson, Lartillot, Lee, Lidholm, Linke, Loll, Lyons, Marin, Merry, Metz, Michel, Michel, Mimuro, Muh, Mulo, Mulo, Murray, Murray, Nakamura, Nitschke, Nixon, Nixon, Nixon, Ochoa de Alda, Oettmeier, Ogami, Park, Petrouleas, Qian, Rappaport, Rasmussen, Raymond, Rippka, Robinson, Rodriguez-Ezpeleta, Roose, Rutherford, Rutherford, Saito, Sauer, Saw, Sedoud, Service, Shevela, Shi, Shih, Sicora, Sicora, Siegbahn, Sievers, Sugiura, Sugiura, Sugiura, Sugiura, Summerfield, Tanai Cardona, Tichy, Toepel, Turner, Ulas, Umena, Vass, Vassiliev, Vermaas, Vermaas, Vermaas, Vinyard, Waldbauer, Wegener, Yoon, Zehr, Zhang, Zhang, Zimmermann   +126 more
core   +1 more source

Menadione: a platform and a target to valuable compounds synthesis

Beilstein Journal of Organic Chemistry, 2022
Naphthoquinones are important natural or synthetic compounds belonging to the general class of quinones. Many compounds in this class have become drugs that are on the pharmaceutical market for the treatment of various diseases.
Acácio S. de Souza, Ruan Carlos B. Ribeiro, Dora C. S. Costa, Fernanda P. Pauli, David R. Pinho, Matheus G. de Moraes, Fernando de C. da Silva, Luana da S. M. Forezi, Vitor F. Ferreira   +8 more
doaj   +1 more source

4,7-Dimethoxy-6-propyl-2H-1,3-benzodioxole-5-carbaldehyde

Molbank, 2023
A simple intermediate for the synthesis of methoxy-analogues of coenzymes Q with substituents having various chain lengths based on natural polyalkoxyallylbenzene apiol has been developed.
Dmitry V. Tsyganov, Victor V. Semenov
doaj   +1 more source

Crystallographic studies of the Escherichia coli quinol-fumarate reductase with inhibitors bound to the quinol-binding site [PDF]

, 2002
The quinol-fumarate reductase (QFR) respiratory complex of Escherichia coli is a four-subunit integral-membrane complex that catalyzes the final step of anaerobic respiration when fumarate is the terminal electron acceptor.
Cecchini, Gary, Croal, Laura R., Iverson, Tina M., Luna-Chavez, César, Rees, Douglas C.   +4 more
core   +1 more source

Comparison of calculated and experimental isotope edited FTIR difference spectra for purple bacterial photosynthetic reaction centers with different quinones incorporated into the QA binding site.

Frontiers in Plant Science, 2013
Previously we have shown that ONIOM type (QM/MM) calculations can be used to simulate isotope edited FTIR difference spectra for neutral ubiquinone in the QA binding site in Rhodobacter sphaeroides photosynthetic reaction centers.
Nan eZhao, Hari P Lamichanne, Gary eHastings   +2 more
doaj   +1 more source

Gold Nanoparticles-Based Colorimetric Immunoassay of Carcinoembryonic Antigen with Metal–Organic Framework to Load Quinones for Catalytic Oxidation of Cysteine

Sensors
This work reported gold nanoparticles (AuNPs)-based colorimetric immunoassay with the Cu-based metal–organic framework (MOF) to load pyrroloquinoline quinone (PQQ) for the catalytic oxidation of cysteine.
Zhao-Jiang Yu, Ting-Ting Yang, Gang Liu, De-Hua Deng, Lin Liu   +4 more
doaj   +1 more source

Studies on 1,4-Quinone Derivatives Exhibiting Anti-Leukemic Activity along with Anti-Colorectal and Anti-Breast Cancer Effects

Molecules, 2022
Colorectal cancer (CRC), breast cancer, and chronic myeloid leukemia (CML) are life-threatening malignancies worldwide. Although potent therapeutic and screening strategies have been developed so far, these cancer types are still major public health ...
Halilibrahim Ciftci, Belgin Sever, Nusret Kaya, Nilüfer Bayrak, Mahmut Yıldız, Hatice Yıldırım, Hiroshi Tateishi, Masami Otsuka, Mikako Fujita, Amaç Fatih TuYuN   +9 more
doaj   +1 more source

Energy conversion in Purple Bacteria Photosynthesis [PDF]

, 2011
The study of how photosynthetic organisms convert light offers insight not only into nature's evolutionary process, but may also give clues as to how best to design and manipulate artificial photosynthetic systems -- and also how far we can drive natural
Caycedo-Soler, Felipe, Johnson, Neil F., Quiroga, Luis, Rodriguez, Ferney J., Zhao, Guannan   +4 more
core   +2 more sources

Integrated genomic and proteomic profiling reveals insights into chemoradiation resistance in cervical cancer

Molecular Oncology, EarlyView.
A comprehensive genomic and proteomic analysis of cervical cancer revealed STK11 and STX3 as a potential biomarkers of chemoradiation resistance. Our study demonstrated EGFR as a therapeutic target, paving the way for precision strategies to overcome treatment failure and the DNA repair pathway as a critical mechanism of resistance.
Janani Sambath, Irene A. George, Srikanth S. Manda, Prasanth Ariyannur, Ekta R. Dhawale, Raja Sekhar Kommu, Rajan Datar, Darshana Patil, Vinita Trivedi, Manisha Singh, Kumar Prabhash, Sewanti Limaye, Richa Chauhan, Prashant Kumar   +13 more
wiley   +1 more source