Results 51 to 60 of about 292,870 (340)
ChemPlusChem, 2017 As an essential component of amino acids and nucleic acids, nitrogen (N) is a key element of life. For atmospheric (dinitrogen, N2 ) and environmental (nitrate and nitrite, NO3 - and NO2 - ) sources of N to be utilized in amino acid synthesis in various ...
Ross D. Milton, S. Minteer
semanticscholar +1 more source
The flavin reductase ActVB from Streptomyces coelicolor: characterization of the electron transferase activity of the flavoprotein form [PDF]
FEBS Letters, Elsevier, 2005, 579, pp.2817-20, 2015 The flavin reductase ActVB is involved in the last step of actinorhodin biosynthesis in Streptomyces coelicolor. Although ActVB can be isolated with some FMN bound, this form was not involved in the flavin reductase activity. By studying the ferric reductase activity of ActVB, we show that its FMN-bound form exhibits a proper enzymatic activity of ...
arxiv +1 more source
IUCrJ, 2016 Serial crystallography has been used to drive copper nitrite reductase through its enzymatic cycle while sampling the same volume of a single cryogenically maintained crystal.
S. Horrell +5 more
semanticscholar +1 more source
The small FNR regulon of Neisseria gonorrhoeae: comparison with the larger Escherichia coli FNR regulon and interaction with the NarQ-NarP regulon [PDF]
, 2007 BACKGROUND: Neisseria gonorrhoeae can survive during oxygen starvation by reducing nitrite to nitrous oxide catalysed by the nitrite and nitric oxide reductases, AniA and NorB.
Cole, Jeff A. +6 more
core +3 more sources
Nitrate and nitrite reductase activities of Mycobacterium avium
International Journal of Mycobacteriology, 2018 Background: In spite of the fact that the standard test for nitrate reductase activity is negative for Mycobacterium avium, it can grow in a defined minimal medium with either nitrate (NO3) or nitrite (NO2) as sole nitrogen sources.
Nitin S Butala, Joseph Oliver Falkinham
doaj +1 more source
Resolution of Key Roles for the Distal Pocket Histidine in Cytochrome c Nitrite Reductases [PDF]
, 2015 Cytochrome c nitrite reductases perform a key step in the biogeochemical N-cycle by catalyzing the six-electron reduction of nitrite to ammonium. These multi-heme cytochromes contain a number of His/His ligated c-hemes for electron transfer and a ...
Burlat, Benedicte +7 more
core +3 more sources
Microbiology, 2016 Pseudomonas aeruginosa is the major aetiological agent of chronic pulmonary infections in cystic fibrosis (CF) patients. However, recent evidence suggests that the polymicrobial community of the CF lung may also harbour oral streptococci, and ...
J. Scoffield, Hui Wu
semanticscholar +1 more source
Influence of lead on N03 uptake and reduction in cucumber seedlings
Acta Societatis Botanicorum Poloniae, 2014 The influence of PbCl2 on NO3- uptake and activity level of nitrate (NR) and nitrite MR) reductases in cotyledons and roots of cucumber seedlings was studied.
Marek Burzyński, Adam Grabowski
doaj +1 more source
The nitric oxide response in plant-associated endosymbiotic bacteria [PDF]
, 2011 Nitric oxide (NO) is a gaseous signalling molecule which becomes very toxic due to its ability to react with multiple cellular targets in biological systems. Bacterial cells protect against NO through the expression of enzymes that detoxify this molecule
Andrew J. Gates +57 more
core +1 more source
Isoform-Specific NO Synthesis by Arabidopsis thaliana Nitrate Reductase
Plants, 2019 Nitrate reductase (NR) is important for higher land plants, as it catalyzes the rate-limiting step in the nitrate assimilation pathway, the two-electron reduction of nitrate to nitrite.
Marie Agatha Mohn +2 more
doaj +1 more source