Perturbations in $$\textbf{O}(D,D)$$ O ( D , D ) string cosmology from double field theory
European Physical Journal C: Particles and FieldsThe low-energy limit of string theory contains additional gravitational degrees of freedom, a skew-symmetric tensor B-field and a scalar dilaton, that are not present in general relativity.
Stephen Angus, Shinji Mukohyama
doaj +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions
FEBS Letters, EarlyView.Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf +6 more
wiley +1 more source
Плазма-ренинÑка активноÑÑ‚ кај нормотензивните (ÐТ), метакортикоидните (МК), Ñпонатнохипертензивните (СХ) и Ñпонтанохипертензивните "Stroke Prone" (SH-p) [PDF]
, 2017 The level of plasma rennin activity in normotensive (NTR), metacorticoide (MHR), spontaneous hypertensive (SHR) and spontaneous hypertensive stroke prone rats (SHR/SP) has been studied and the results presented in this report.Plasma rennin activity was ...
Петров (Petrov), Стојмир (Stojmir) +1 more
core +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Радиоимунолошко одредување на нормални предпладневни вредноÑти на ÐЦТХ и кортизол во плазмата кај женÑки и машки иÑпитаници [PDF]
, 2017 Basal levels of ACT and cortisol in the plasma show diurnal, menstrual and gravidities variations. Several authors have presented mean value with large deviations making difficulties in the clinical interpretation of the results.In order to get more real
Ðикодијевиќ (Nikodijevikj), Олга (Olga) +1 more
core +1 more source
Journal of High Energy PhysicsWe perform a detailed model-independent phenomenological analysis of B ¯ → D ¯ D $$ \overline{B}\to \overline{D}D $$ decays. Employing an SU(3) F analysis including symmetry-breaking contributions together with a conservative power counting for various ...
Jonathan Davies +2 more
doaj +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source