Results 101 to 110 of about 2,231,192 (331)
FEBS Letters, EarlyView.Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley +1 more source
Proper gromov transforms of metrics are metrics
Applied Mathematics Letters, 2002 In phylogenetic analysis, a standard problem is to approximate a given metric (usually derived from some data set) by a tree metric. Such a method was proposed by Gromov in the context of hyperbolic groups in [\textit{M. Gromov}, Hyperbolic Groups, Essays in group theory, Publ., Math. Sci. Res. Inst.
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FEBS Letters, EarlyView.Phytohormone brassinosteroid‐induced gene regulation by the transcription factor BIL1/BZR1 involves redox‐dependent DNA‐binding alternation and interaction with the transcription factor PIF4. The reduced BIL1/BZR1 dimer binds preferred cis‐elements, while oxidation alters its oligomerization state and disrupts DNA‐binding ability.
Shohei Nosaki +4 more
wiley +1 more source
Topology and its Applications, 2001 The authors define and investigate Effros metric \(\sigma_M\geq \rho\) defined on a bounded metric space \((X,\rho)\) by means of a semigroup \(M\) of surjections \(X\to X\) (a continuation and generalization of a paper by \textit{J. J. Charatonik} and \textit{T. Maćkowiak} [Trans. Am. Math. Soc. 298, 579-602 (1986; Zbl 0608.54012)].
Janusz J. Charatonik +3 more
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Socio-demographic factors of happiness among young adults in Iran
Scientific ReportsThis study aimed to measure the socio-demographic factors of happiness among young adults in Iran. A national cross-sectional study measures socio-demographic factors of happiness among a representative sample of young adults (20–39 years).
Ali Montazeri +8 more
doaj +1 more source
Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment
FEBS Letters, EarlyView.The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke +2 more
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FEBS Letters, EarlyView.Antimicrobial resistance (AMR) is of huge importance, resulting in over 1 million deaths each year. Here, we describe how a new drug, enmetazobactam, designed to help fight resistant bacterial diseases, inhibits a key enzyme (GES‐1) responsible for AMR. Our data show it is a more potent inhibitor than the related tazobactam, with high‐level computation
Michael Beer +10 more
wiley +1 more source
On the completeness of a metric related to the Bergman metric [PDF]
Monatshefte für Mathematik, 2013 We study the completeness of a metric which is related to the Bergman metric of a bounded domain. We provide a criterion for its completeness in the spirit of the Kobayashi criterion for the completeness of the Bergman metric. In particular we prove that in hyperconvex domains our metric is complete.
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Alloy of Platinum and Iridium for a New Metric Standard of Length [PDF]
, 1877 W. Chandler Roberts
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Malaria JournalBackground In 2021, an estimated 750,000 people died from malaria. Despite this significant burden, globally, malaria incidence and mortality rates have substantially dropped over the last 30 years.
Angela E. Apeagyei +5 more
doaj +1 more source