Results 81 to 90 of about 1,546,191 (283)

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Bayesian Technique for the Selection of Probability Distributions for Frequency Analyses of Hydrometeorological Extremes

Entropy, 2018
Frequency analysis of hydrometeorological extremes plays an important role in the design of hydraulic structures. A multitude of distributions have been employed for hydrological frequency analysis, and more than one distribution is often found to be ...
Lu Chen, Vijay P. Singh, Kangdi Huang
doaj   +1 more source

The State of Self-Organized Criticality of the Sun During the Last Three Solar Cycles. II. Theoretical Model

, 2010
The observed powerlaw distributions of solar flare parameters can be interpreted in terms of a nonlinear dissipative system in the state of self-organized criticality (SOC).
B.A. Huberman, E. Fermi, E.T. Lu, E.T. Lu, J.C. Brown, J.C. Willis, J.P. Norman, M.J. Aschwanden, M.J. Aschwanden, M.K. Georgoulis, M.S. Wheatland, Markus J. Aschwanden, N.B. Crosby, P. Bak, P. Charbonneau, R. Rosner   +15 more
core   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Bilinear Magnitude‐Frequency Distributions and Characteristic Earthquakes During Hydraulic Fracturing

Geophysical Research Letters, 2018
Previous studies show that a temporal drop in the b value (slope) of magnitude‐frequency distributions observed during hydraulic‐fracturing operations could signify the activation of a preexisting fault system.
Nadine Igonin, Megan Zecevic, David W. Eaton   +2 more
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

MHC allele frequency distributions under parasite-driven selection: A simulation model

BMC Evolutionary Biology, 2010
Background The extreme polymorphism that is observed in major histocompatibility complex (MHC) genes, which code for proteins involved in recognition of non-self oligopeptides, is thought to result from a pressure exerted by parasites because parasite ...
Radwan Jacek, Babik Wiesław, Ejsmond Maciej   +2 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Statistical analysis of the phytocoenose homogeneity. V. Frequency distributions of similarity and distance coefficients as a function of the area size

Acta Societatis Botanicorum Poloniae, 2014
Homogeneity of the Leucobryo-Pinetum phytocoenose was assessed on the grounds of the type of frequency distributions of similarity and Euclidean distance coefficients.
Anna J. Kwiatkowska, Ewa Symonidis
doaj   +1 more source

Pulsation frequency distribution in Delta Scuti stars

, 2015
We study the frequency distributions of Delta Scuti stars observed by the Kepler satellite in short-cadence mode. To minimize errors in the estimated stellar parameters, we divided the instability strip into ten regions and determined the mean frequency ...
Balona, L. A., Daszynska-Daszkiewicz, J., Pamyatnykh, A. A.   +2 more
core   +1 more source