Results 51 to 60 of about 861,879 (285)
FEBS Letters, EarlyView.Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman +2 more
wiley +1 more source
Hyers–Ulam stability of non-autonomous and nonsingular delay difference equations
Advances in Difference Equations, 2021 In this paper, we study the uniqueness and existence of the solution of a non-autonomous and nonsingular delay difference equation using the well-known principle of contraction from fixed point theory.
Gul Rahmat +5 more
doaj +1 more source
, 2010 Communication between cells is realized by exchange of biochemical substances. Due to internal organization of living systems and variability of external parameters, the exchange is heavily influenced by perturbations of various parameters at almost all ...
ANJA MIHAILOVIĆ +8 more
core +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
Stability Analysis of a Class of Higher Order Difference Equations
Abstract and Applied Analysis, 2014 We consider the sufficient conditions for asymptotic stability and instability of certain higher order nonlinear difference equations with infinite delays in finite-dimensional spaces.
Yuanyuan Liu, Fanwei Meng
doaj +1 more source
On the Stability of Volterra Difference Equations of Convolution Type
Trends in Computational and Applied Mathematics, 2018 In \cite{Elaydi-10}, S.\ Elaydi obtained a characterization of the stability of the null solution of the Volterra difference equation \beqae x_n=\sum_{i=0}^{n-1} a_{n-i} x_i\textrm{,}\quad n\geq 1\textrm{,} \eeqae by localizing the roots of its ...
Higidio Portillo Oquendo +2 more
doaj +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Difference inequality for stability of impulsive difference equations with distributed delays
Journal of Inequalities and Applications, 2011 In this paper, we consider a class of impulsive difference equations with distributed delays. By establishing an impulsive delay difference inequality and using the properties of "ρ-cone" and eigenspace of the spectral radius of non-negative ...
Long Shujun, Li Dingshi, Wang Xiaohu
doaj
On the global stability of some k-order difference equations [PDF]
Results in Nonlinear Analysis, 2018 We use two different techniques, one of them including fixed point tools, i.e., the Prešić type fixed point theorem, in order to study the asymptotic stability of some k-order difference equations for k = 1 and k = 2. In this way, we can study the global
Vasile Berinde , Hafiz Fukhar-ud-din , Mădălina Păcurar
doaj
Exponential Stability of Difference Equations with Several Delays: Recursive Approach
Advances in Difference Equations, 2009 We obtain new explicit exponential stability results for difference equations with several variable delays and variable coefficients. Several known results, such as Clark's asymptotic stability criterion, are generalized and extended to a new class ...
Leonid Berezansky, Elena Braverman
doaj +2 more sources