Results 61 to 70 of about 4,159,820 (313)

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Sub-micron, Metal Gate, High-к Dielectric, Implant-free, Enhancement-mode III-V MOSFETs [PDF]

, 2007
The performance of 300nm, 500nm and 1μm metal gate, implant free, enhancement mode III-V MOSFETs are reported. Devices are realised using a 10nm MBE grown Ga2O3/(GaxGd1-x)2O3 high-κ (κ=20) dielectric stack grown upon a δ-doped AlGaAs/InGaAs/AlGaAs ...
Moran, D.A.J., D. A. J. Moran, H. Zhou, I. G. Thayne, M. Passlack, K. Rajagopalan, Passlack, M., X. Li, Li, X., Thayne, I.G., Droopad, R., McIntyre, D., Zhou, H., J. Abrokwah, D. McIntyre, Abrokwah, J., P. Zurcher, S. Thoms, R. Droopad, Zurcher, P., R. J. W. Hill, Thoms, S., Rajagopalan, K., Hill, R.J.W.   +23 more
core   +1 more source

Cross-Dehydrogenative Coupling Reaction and Arylation of Quinoxalin-2(1H)-ones under Iodide/Peroxide Conditions

SynOpen, 2021
A simple method has been developed for the synthesis of ­3-(2-oxo-2-phenylethylidene)-3,4-dihydroquinoxalin-2(1H)-one and ­3-aryl-quinoxalin-2(1H)-one derivatives through C–H activation of quinoxalin-2(1H)-ones by peroxides and iodide.
Yujuan Wu, Xianglong Chu, Di Yang, Chen Ma, Caixia Xie   +4 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Sheet Metal Workers' International Association charter [PDF]

, 1994
Sheet Metal Workers' International Association charter, local union #146, Springfield, Missouri. Legible names on the document include Charles G. Gibson, Gary L. Comer, Randy L. Smith, J. Michael Dailey, David V. Maples, William W. Newlon Jr., Donald L.
Sheet Metal Workers' International Association
core  

Unsymmetrical Diboron Reagents: Application in Borylation Reactions of Unsaturated Bonds

Molecules, 2019
In the past decades, borylation reactions have received extensive research interest and have developed into effective tools in the synthesis of versatile organoboron compounds. Boranes and symmetrical diboron compounds are commonly utilized as borylating
Siyi Ding, Liang Xu, Zongcheng Miao
doaj   +1 more source

Highly Efficient Synthesis of 3,3-Disubstituted Oxindoles through Direct Oxidative Alkylarylation of N-Arylacrylamides with Simple Alkanes

SynOpen, 2023
A direct oxidative alkylarylation reaction of N-arylacrylamides with simple alkanes for the synthesis of 3,3-disubstituted oxindoles under metal-free conditions was demonstrated.
Yan Chen, Weihong Song, Zhixiang Zhou, Ziye Zhang, Kai Liu, Xiaofei Zeng, Xiaoyu Han   +6 more
doaj   +1 more source

Metal-Free Organocatalysis [PDF]

Catalysts, 2018
Fostering research in fundamental organic transformations is of utmost importance for the development of science.[...]
openaire   +2 more sources

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

AscF in the mycobacterial CIII–CIV supercomplex lacks metal and nucleotide binding but links malate oxidation to respiration

FEBS Letters, EarlyView.
The mycobacterial CIII‐CIV respiratory supercomplex is an obligate assembly, encompassing several subunits of unknown functions. We have characterized the intracellular subunit AscF, and show that it is unlikely to be a sensor for metals or nucleotides, but is required for growth on nonfermentable energy sources, and likely works as an adapter for ...
Eni Rile, Riccardo Diamanti, Daniel Lundin, Soni Sharma, Robin Lissner, Coenraad P. Kuil, Martin Högbom, Dirk Bald, Dan Sjöstrand   +8 more
wiley   +1 more source