Results 61 to 70 of about 6,322,087 (352)

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

Blue-Light-Emitting Photostable Hybrid Films for High-Efficiency Large-Area Light Converter and Photonic Applications

, 2018
A blue fluorophore of Schiff base zinc complex is prepared by a hydrolysis-free solution-based synthetic method. Under ultraviolet (UV) excitation, the complex produces blue emission with a quantum yield (Q) of 42.6% in methylene chloride and 24.0% in ...
Youngku Sohn (1451536), Kam Tong Leung (164863), Jun-Gill Kang (1681393), Jun-Gill Kang, Youngku Sohn, Kam Tong Leung, Jung-Soo Kang (1681399), Jung-Soo Kang   +7 more
core   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Melanocytes Sense Blue Light and Regulate Pigmentation through Opsin-3.

Journal of Investigative Dermatology, 2018
The shorter wavelengths of the visible light spectrum have been recently reported to induce a long-lasting hyperpigmentation but only in melano-competent individuals.
Claire Regazzetti, L. Sormani, D. Debayle, F. Bernerd, M. Tulic, G. M. De Donatis, B. Chignon‐Sicard, S. Rocchi, T. Passeron   +8 more
semanticscholar   +1 more source

Light-dependent magnetoreception in birds : increasing intensity of monochromatic light changes the nature of the response

, 2007
Background The Radical Pair model proposes that magnetoreception is a light-dependent process. Under low monochromatic light from the short-wavelength part of the visual spectrum, migratory birds show orientation in their migratory direction.
Wiltschko, W., Wiltschko, Wolfgang (Prof. Dr.), Stapput, Katrin, Wiltschko Roswitha, Bischof Hans-Joachim, Wiltschko, Roswitha, Wiltschko Wolfgang, Bischof, Hans-Joachim, Stapput Katrin   +8 more
core   +1 more source

Effect of Photoperiod on Chinese Kale (Brassica alboglabra) Sprouts Under White or Combined Red and Blue Light

Frontiers in Plant Science, 2021
To determine the response of Chinese kale (Brassica alboglabra) sprouts to photoperiods under different light sources, we used four photoperiods (0-h light/24-h dark, 8-h light/16-h dark, 12-h light/12-h dark, and 16-h light/8-h dark) to investigate ...
Jiaxuan Chen, Zeyuan Chen, Zeyuan Chen, Zunwen Li, Yijiao Zhao, Xiaodong Chen, Gefu Wang-Pruski, Gefu Wang-Pruski, Rongfang Guo, Rongfang Guo   +9 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

The Proportion of Blue Light from Light-emitting Diodes Alters Microgreen Phytochemical Profiles in a Species-specific Manner

HortScience, 2020
Microgreens are specialty vegetables that contain human health-promoting phytochemicals. Typically, microgreens are cultivated in controlled environments under red and blue light-emitting diodes (LEDs).
Qinglu Ying, Chase Jones-Baumgardt, Youbin Zheng, Gale Bozzo   +3 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Photochemical colour change for traditional watercolour pigments in low oxygen levels

, 2015
An investigation for light exposure on pigments in low-oxygen environments (in the range 0–5% oxygen) was conducted using a purpose-built automated microfadometer for a large sample set including multiple samples of traditional watercolour pigments from ...
Thomas, Jacob,, Lerwill, A., Townsend, JH, Liang, H., Lerwill, A, Liang, Haida, Hackney, Stephen, Caspers, Charlotte, Hackney, S., Lerwill, Andrew, Townsend, Joyce H., Caspers, C, Townsend, J. H., Thomas, J, Liang, H, Thomas, Jacob, Caspers, C., Hackney, S   +17 more
core   +1 more source