Results 111 to 120 of about 29,761,483 (233)

Measurement of ferredoxin-dependent sulfite reductase activity in crude extracts from leaves using O-acetyl-l-serine sulfhydrylase in a coupled assay system to measure the sulfide formed [PDF]

open access: yes, 1983
Ferredoxin-dependent sulfite reductase (EC 1.8.7.1) catalyses the reduction of sulfite to sulfide, using reduced ferredoxin as an electron donor. An assay system was developed for measuring this enzyme activity in crude extracts and broken chloroplast ...
Brunold, Christian, von Arb, Christoph
core   +1 more source

Carbon Nanorods With Adhered Monodisperse Cobalt Nanoparticles Exhibiting Electromagnetic Wave Absorption and Antibacterial Potential

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Magnetic particles coated with carbon shells have been considered as promising electromagnetic wave absorption materials with antibacterial features. However, how to precisely control the monodispersed magnetic nanoparticles on a carbon matrix to manipulate impedance matching and antibacterial performances is still a key challenge.
Xiaofei Li   +10 more
wiley   +1 more source

Atractylenolide III mitigates polycystic ovary syndrome by activating FDX1-mediated proliferation of ovarian granulocyte cells via PI3K/AKT/mTOR

open access: yesJournal of Ovarian Research
Background Polycystic ovary syndrome (PCOS) is the most common endocrine and metabolic disorder among women of reproductive age worldwide. This study aimed to investigate the therapeutic potential and molecular mechanisms of Atractylenolide III (ATL-III),
Nan Zhou   +10 more
doaj   +1 more source

Entdeckung eines antiviralen Elektronentransferprozesses zur Erzeugung katalytisch selbstversorgender viraler Restriktionsfaktoren

open access: yesAngewandte Chemie, Volume 138, Issue 39, 21 September 2026.
CYB5R3 wird als mutmaßlicher Elektronentransferpartner von Viperin (RSAD2) identifiziert, was erklärt, warum die ER‐Lokalisation für die antivirale Aktivität erforderlich ist. Dieses Wissen ermöglichte die Entwicklung immunstiller, katalytisch selbstversorgender antiviraler Restriktionsfaktor‐Enzyme (iCAREs), die ein antivirales Nukleosidtriphosphat ...
Mengdi Wu   +16 more
wiley   +1 more source

Discovery of an Antiviral Electron Transfer Process to Create Catalytically Self‐Sufficient Viral Restriction Factors

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 39, 21 September 2026.
CYB5R3 is identified as a putative electron‐transfer partner of viperin (RSAD2), explaining why ER localisation is required for antiviral activity. Its utilisation enabled the engineering of immune‐silent, catalytically self‐sufficient antiviral restriction factor enzymes (iCAREs) that produce an antiviral nucleoside triphosphate analogue (ANTA ...
Mengdi Wu   +16 more
wiley   +1 more source

Hydrogen production in the Chlorella sp. DT mutants carrying heterologous electron donor ferredoxin 1 of Chlamydomonas reinhardtii

open access: yesElectronic Journal of Biotechnology
Background: Ferredoxin 1 (Fd1) is the main electron donor to hydrogenase (HydA) for generating molecular hydrogen (H2) in green microalgae. In order to obtain an increased H2 production, the Fd1 of Chlamydomonas reinhardtii (CrFd1, encoded by crfd1) was ...
Yen-Ju Lin, Lee-Feng Chien
doaj   +1 more source

Hypoxia-induced autophagy attenuates ferredoxin 1-mediated cuproptosis in colorectal cancer cells

open access: yesHuman & Experimental Toxicology
Introduction Cuproptosis has emerged as a potential therapeutic target for colorectal cancer (CRC). This study investigated the role of ferredoxin 1 (FDX1) in regulating cuproptosis under hypoxic conditions and explored the impact of autophagy on this process in CRC.
Long Qin   +6 more
openaire   +2 more sources

Isocyanides as a Chemical Tool for Identifying [Fe]‐Hydrogenase‐Dependent Methanogenesis

open access: yesChemBioChem, Volume 27, Issue 17, 14 September 2026.
In model methanogens, [Fe]‐hydrogenase (Hmd) substitutes nickel‐dependent hydrogenases under nickel‐limited conditions. We determined the inhibitory effects of the Hmd inhibitor, isocyanides, on methanogenesis in a cell extract and in a cell suspension.
Shunsuke Nomura, Seigo Shima
wiley   +1 more source

Materials‐Guided Gene‐Ionizable Lipid Nanoparticles to Reverse Iron‐Associated Immune Resistance in Renal Cancer

open access: yesAdvanced Science, Volume 13, Issue 49, 3 September 2026.
ABSTRACT Iron overload is a common metabolic disturbance in cancer and contributes to poor outcomes in renal cell carcinoma (RCC), yet its effects on the tumour immune microenvironment remain unclear. Here we identify a previously unrecognized immunosuppressive axis in which iron overload downregulates the palmitoyltransferase ZDHHC12 in CD8+ T cells ...
Xin Jin   +16 more
wiley   +1 more source

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