Results 41 to 50 of about 289,146 (256)

Expanding the Diet for DIET: Electron Donors Supporting Direct Interspecies Electron Transfer (DIET) in Defined Co-Cultures

Frontiers in Microbiology, 2016
Direct interspecies electron transfer (DIET) has been recognized as an alternative to interspecies H2 transfer as a mechanism for syntrophic growth, but previous studies on DIET with defined co-cultures have only documented DIET with ethanol as the ...
Li-YIng eWang, Kelly eNevin, Trevor L Woodard, Bozhong eMu, Derek R Lovley   +4 more
doaj   +1 more source

Direct interspecies electron transfer mechanisms of a biochar-amended anaerobic digestion: a review

Biotechnology for Biofuels and Bioproducts, 2023
This paper explores the mechanisms of biochar that facilitate direct interspecies electron transfer (DIET) among syntrophic microorganisms leading to improved anaerobic digestion.
Marvin T. Valentin, Gang Luo, Shicheng Zhang, Andrzej Białowiec   +3 more
doaj   +1 more source

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

Multiple electron transfer pathways of tungsten-containing formate dehydrogenase in direct electron transfer-type bioelectrocatalysis

Chemical Communications, 2022
Multiple direct electron transfer pathways are discovered in Tungsten-containing formate dehydrogenase from the viewpoints of structural biology and bioelectrochemistry.
Tatsushi Yoshikawa, Fumiaki Makino, Tomoko Miyata, Yohei Suzuki, Hideaki Tanaka, Keiichi Namba, Kenji Kano, Keisei Sowa, Yuki Kitazumi, Osamu Shirai   +9 more
openaire   +2 more sources

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

Electron and Proton Flux for Carbon Dioxide Reduction in Methanosarcina barkeri During Direct Interspecies Electron Transfer

Frontiers in Microbiology, 2018
Direct interspecies electron transfer (DIET) is important in diverse methanogenic environments, but how methanogens participate in DIET is poorly understood.
Dawn E. Holmes, Dawn E. Holmes, Amelia-Elena Rotaru, Amelia-Elena Rotaru, Toshiyuki Ueki, Pravin M. Shrestha, Pravin M. Shrestha, James G. Ferry, Derek R. Lovley   +8 more
doaj   +1 more source

Sparking Anaerobic Digestion: Promoting Direct Interspecies Electron Transfer to Enhance Methane Production

iScience, 2020
Anaerobic digestion was one of the first bioenergy strategies developed, yet the interactions of the microbial community that is responsible for the production of methane are still poorly understood. For example, it has only recently been recognized that
Zhiqiang Zhao, Yang Li, Yaobin Zhang, Derek R. Lovley   +3 more
doaj   +1 more source

Unveiling the spatially confined oxidation processes in reactive electrochemical membranes

Nature Communications, 2023
Electrocatalytic oxidation offers opportunities for sustainable environmental remediation, but it is often hampered by the slow mass transfer and short lives of electro-generated radicals. Here, we achieve a four times higher kinetic constant (18.9 min−1)
Yuyang Kang, Zhenao Gu, Baiwen Ma, Wei Zhang, Jingqiu Sun, Xiaoyang Huang, Chengzhi Hu, Wonyong Choi, Jiuhui Qu   +8 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

Mechanistic Study of ROS-photogeneration by Pterin

Pteridines, 2011
Pterins are widespread in biological systems and possess photosensitizing activities. In the present study, the photosensitization mechanism of acid form of pterin (PTA) and basic form of pterin (PTB) is investigated by means of density functional theory
Ji Hong-Fang, Shen Liang
doaj   +1 more source