Results 91 to 100 of about 1,204,200 (341)

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Potentiometric and conductometric studies of malonyl bis(salicyloylhydrazone) and divalent metal complexes [PDF]

, 2010
A series of complexes of divalent transition metal ions with malonyl bis(salicyloylhydrazone) (H4MSH) have been prepared and characterized with the help of conductometric, potentiometric methods.
Askar, E.I., Shokry, H., Hashmy, D. Al.
core   +6 more sources

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Anticancer Metallocenes and Metal Complexes of Transition Elements from Groups 4 to 7

Molecules
With the progression in the field of bioinorganic chemistry, the role of transition metal complexes as the most widely used therapeutics is becoming a more and more attractive research area.
Irena Kostova
doaj   +1 more source

Pyridine: A Useful Ligand in Transition Metal Complexes

Pyridine, 2018
Pyridine (C 5 H 5 N) is being the simplest six-membered heterocycles, closely resembles its structure to benzene. The “N” in benzene ring has its high electronegativity influence on resonance environment and produces markedly different chemistry from its
S. Pal
semanticscholar   +1 more source

Mesomorphism and Photophysics of Some Metallomesogens Based on Hexasubstituted 2,2':6', 2''-Terpyridines : 6', 2''-Terpyridines [PDF]

, 2016
The luminescent and mesomorphic properties of a series of metal complexes based on hexacatenar 2,2':6',2''-terpyridines are investigated using experimental methods and density functional theory (DFT). Two types of ligand are examined, namely 5,5''-di(3,4,
Abdullah, Baldo, Balzani, Barber, Barigelletti, Bayón, Bejoymohandas, Bignozzi, Binnemans, Binnemans, Bizzarri, Cardinaels, Cariati, Cavero, Chen, Collin, Collman, Costa, Crabtree, Díez, Dürr, Escande, Foster, Galyametdinov, Gao, Goodwin, Graber, Grätzel, Gütlich, Harriman, Holder, Inoue, Kaifer, Kozhevnikov, Kozhevnikov, Kozhevnikov, Kozhevnikov, Kozhevnikov, Kozhevnikov, Kozhevnikov, Krikorian, Kühlbrandt, Lanoë, Lee, Lee, Lippard, Lis, Mak, McMurtrie, Morale, Neese, Nozary, Nozary, O′Regan, Prokhorov, Robertson, Santoro, Santoro, Schubert, Scudder, Serrano, Shavaleev, Smirnova, Spek, Spencer, Sykora, Taylor, Terazzi, Terazzi, Wang, Wasielewski, Wild, Williams, Yachandra, Yam, Yang, Yang, Yersin, Yoshikawa, Zheng   +79 more
core   +4 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source

Studies on Transition Metal-Quercetin Complexes Using Electrospray Ionization Tandem Mass Spectrometry

Molecules, 2015
To systematically study the effects of the number of d electrons of the first transition metal ions (Fe, Co, Ni, Cu and Zn) on the formation and stability of metal flavonoid complexes, we took the quercetin/M2+ complex as a model system to investigate ...
Yuanzhen Liu, Mingquan Guo
doaj   +1 more source

Electron Redistribution of Aromatic Ligands in (Arene)Cr(CO)\u3csub\u3e3\u3c/sub\u3e Complexes. Structural (Bond-Length) Changes as Quantitative Measures [PDF]

, 2001
Arene ligands experience significant ring expansion upon coordination with chromium tricarbonyl, as established by precise X-ray crystallographic analyses of various (η6-arene)Cr(CO)3 complexes.
Kochi, Jay K., Lindeman, Sergey V., Maguères, P. Le   +2 more
core   +1 more source