نتایج جستجو برای: regulatory signal

تعداد نتایج: 590081  

2001
Satoshi Yamada Akihiko Yoshimura

Cytokines regulate important cellular responses through signal transduction pathways. The computer modeling is a useful method to understand dynamic characteristics or regulatory mechanisms of signal transduction pathways. The ultrasensitivity of the mitogen-activated protein kinase cascade was shown by the simulation study [2]. Many cytokine receptors transduce signals by receptor bound JAK ki...

Journal: :Molecular bioSystems 2014
Ahmet Ay Necmettin Yildirim

Cells selectively respond to external stimuli to maintain cellular homeostasis by making use of different regulatory mechanisms. We studied two classes of signal-dependent regulatory inhibition and activation mechanisms in this study. Inhibition mechanisms assume that inhibition can occur in two different ways: either by increasing the degradation rate or decreasing the production rate. Similar...

Journal: :Current Biology 2010
Isabelle Becam Ulla-Maj Fiuza Alfonso Martínez Arias Marco Milán

Notch and its ligands mediate short-range cell interactions that play a conserved role in inducing cell fate specification. Several regulatory mechanisms have been described to ensure robust polarized signaling from signal-sending to signal-receiving cells. High levels of ligand expression activate Notch in nearby cells and exert a cell-autonomous dominant-negative effect on Notch activity. Thi...

Journal: :دانش و پژوهش در آموزش زبان انگلیسی 0
nahid partovi islamic azad university, kermanshah science & research branch, kermanshah, iran dara tafazoli department of english and german philologies, university of córdoba,córdoba, spain

the present study aimed to explore (a) if there is any relationship between efl teachers’ self-regulatory and their resiliency, (b) if there is any relationship between efl teachers’ self-regulatory and their genders, and (c) if there is any relationship between efl teachers’ self-regulatory and years of teaching experience. through a convenience method of sampling, the first group of participa...

Journal: :jundishapur journal of microbiology 0
mohammad savari department of microbiology, medicine school, tehran university of medical sciences, tehran, ir iran soodabeh rostami infectious disease and tropical medicine research center, isfahan university of medical sciences, isfahan, ir iran alireza ekrami department of laboratory medical sciences, faculty of para medicine, ahvaz jundishapur university of medical sciences, ahvaz, ir iran abbas bahador department of microbiology, medicine school, tehran university of medical sciences, tehran, ir iran; department of microbiology, medicine school, tehran university of medical sciences, tehran, ir iran. tel/fax: +98-2188955810

conclusions based on the presence of ta systems in the majority of p. aeruginosa isolates, these could be used as a novel target for antimicrobial therapy. results our results showed that in the 174 p. aeruginosa isolates, relbe and higba were universal, but parde was less prevalent. both of the flanking regions of the parde genes in all positive isolates were amplified. the flanking regions of...

Journal: :Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research 1991
T Okuda H Sawada Y Kato Y Yumoto K Ogawa M Tashima M Okuma

We have previously shown that HL-60 cells treated with 1 alpha, 25-(OH)2D3 in magnesium-deficient medium are committed to differentiate but do not express differentiation-related phenotypes. In the present study, we demonstrated that Mg2+ deprivation blocked the process of differentiation before the induction of lysozyme mRNA and that the process of HL-60 cell differentiation could be divided i...

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