Quantitative Methods for Ecologists Fnr 693e
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Lack of quantitative training among early-career ecologists: a survey of the problem and potential solutions
Proficiency in mathematics and statistics is essential to modern ecological science, yet few studies have assessed the level of quantitative training received by ecologists. To do so, we conducted an online survey. The 937 respondents were mostly early-career scientists who studied biology as undergraduates. We found a clear self-perceived lack of quantitative training: 75% were not satisfied w...
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In higher plants ferredoxin (Fd):NADP(+) oxidoreductase (FNR) and Fd are each distributed in photosynthetic and non-photosynthetic organs as distinct isoproteins. We have cloned cDNAs for leaf FNR (L-FNR I and L-FNR II) and root FNR (R-FNR) from maize (Zea mays L.), and produced recombinant L-FNR I and R-FNR to study their enzymatic functions through kinetic and Fd-binding analyses. The K(m) va...
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The Neisseria gonorrhoeae genome encodes a homologue of the Escherichia coli FNR protein (the fumarate and nitrate reductase regulator). Despite its similarity to E. coli FNR, the gonococcal FNR only partially complemented an E. coli fnr mutation. After error-prone PCR mutagenesis of the gonococcal fnr gene, we identified four mutant fnr derivatives carrying the same S18F substitution, and we s...
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T his is my first editorial as the new Editor-in-Chief for Food & Nutrition Research (FNR). This editorial contains both good and sad news (but this is how life is so why would a scientific journal be any different?). To start with the sad news: Professor Nils-Georg Asp, until recently Editor-in-Chief for FNR, passed away in early June this summer, right before the Nordic Nutrition Conference i...
متن کاملIn vivo cycling of the Escherichia coli transcription factor FNR between active and inactive states.
FNR proteins are transcription regulators that sense changes in oxygen availability via assembly-disassembly of [4Fe-4S] clusters. The Escherichia coli FNR protein is present in bacteria grown under aerobic and anaerobic conditions. Under aerobic conditions, FNR is isolated as an inactive monomeric apoprotein, whereas under anaerobic conditions, FNR is present as an active dimeric holoprotein c...
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