Results 101 to 110 of about 503,441 (367)
Frontiers in Microbiology, 2019 Orange filamentous Beggiatoaceae form massive microbial mats on hydrothermal sediments in Guaymas Basin; these bacteria are considered to oxidize sulfide with nitrate and nitrite as electron acceptors.
Andrew Buckley +2 more
doaj +1 more source
Stimuli‐Responsive Supramolecular Biomaterials for Cancer Theranostics
Advanced Science, EarlyView.The ultimate goal of cancer theranostics is to get imaging agents and therapeutic cargo to tumor sites when and where they are required. “Smart” systems should be developed. This review discusses the characteristics of physiological stimuli, types and action modes of external stimuli, construction approaches and working principles, as well as ...
Wenting Hu +4 more
wiley +1 more source
Tungstoenzymes: Occurrence, Catalytic Diversity and Cofactor Synthesis
Inorganics, 2020 Tungsten is the heaviest element used in biological systems. It occurs in the active sites of several bacterial or archaeal enzymes and is ligated to an organic cofactor (metallopterin or metal binding pterin; MPT) which is referred to as tungsten ...
Carola S. Seelmann +3 more
doaj +1 more source
Analysis of acid-stressed Bacillus cereus reveals a major oxidative response and inactivation-associated radical formation [PDF]
, 2010 Acid stress resistance of the food-borne human pathogen Bacillus cereus may contribute to its survival in acidic environments, such as encountered in soil, food and the human gastrointestinal tract. The acid stress responses of B.
Abee, T. +4 more
core +2 more sources
Advanced Science, EarlyView.Cryo‐EM analysis reveals an asymmetric MMOH–MMOB complex with distinct protomers, where MMOB binding triggers structural rearrangements from the surface to the active site. This conformational asymmetry shortens the Fe···Fe distance to 2.7 Å in one protomer, forming a geometry suitable for O2 activation and supporting a sequential catalytic mechanism ...
Yunha Hwang +9 more
wiley +1 more source
Angewandte Chemie, EarlyView.Targeted covalent inhibitors (TCI) containing cyclic imine warheads react with tyrosine and tryptophan residues via the Mannich reaction. These cyclic imine warheads show comparable reaction kinetics to cysteine‐reactive electrophiles commonly used in TCIs.
Sijie Wang +6 more
wiley +2 more sources
The Nitrate Assimilatory Pathway in Sinorhizobium meliloti: Contribution to NO Production
Frontiers in Microbiology, 2019 The interaction between rhizobia and their legume host plants culminates in the formation of specialized root organs called nodules in which differentiated endosymbiotic bacteria (bacteroids) fix atmospheric nitrogen to the benefit of the plant ...
Bryan Ruiz +5 more
doaj +1 more source
Denitrification by rhizobia: A possible factor contributing to nitrogen losses from soils [PDF]
, 1980 The intensive pastoral farming system on which New Zealand animal production is based is almost completely dependent upon the rhizobium-legurne symbiosis for the fixed nitrogen required for pasture production.
Daniel, Roy M. +2 more
core +1 more source
Two highly divergent alcohol dehydrogenases of melon exhibit fruit ripening-specific expression and distinct biochemical characteristics [PDF]
, 2006 Alcohol dehydrogenases (ADH) participate in the biosynthetic pathway of aroma volatiles in fruit by interconverting aldehydes to alcohols and providing substrates for the formation of esters.
A-RS Chen +47 more
core +2 more sources
Constitutive activation of nitrate reductase in tobacco alters flowering time and plant biomass [PDF]
, 2021 Jianli Lu +6 more
openalex +1 more source