The RSC chromatin-remodeling complex completely disassembles a nucleosome in the presence of the histone chaperone Nap1 and ATP. Disassembly occurs in a stepwise manner, with the removal of H2A/H2B dimers, followed by the rest of the histones and the release of naked DNA. RSC and related chromatin-remodeling complexes may be responsible for the removal of promoter nucleosomes during transcripti...

RSC, an abundant, essential chromatin-remodeling complex related to SWI/SNF complex, catalyzes the transfer of a histone octamer from a nucleosome core particle to naked DNA. The newly formed octamer-DNA complex is identical with a nucleosome in all respects. The reaction requires ATP and involves an activated RSC-nucleosome intermediate. The mechanism may entail formation of a duplex displacem...

Insulators bind transcription factors and use chromatin remodellers and modifiers to mediate insulation. In this report, we identified proteins required for the efficient formation and maintenance of a specialized chromatin structure at the yeast tRNA insulator. The histone acetylases, SAS-I and NuA4, functioned in insulation, independently of tRNA and did not participate in the formation of th...

Post-translational acetylation of histone tails is often required for the recruitment of ATP-dependent chromatin remodelers, which in turn mobilize nucleosomes on the chromatin fiber. Here we show that the lower lobe of the ATP-dependent chromatin remodeler RSC exists in a dynamic equilibrium and can be found extended away or retracted against the tripartite upper lobe of the complex. Extension...

In this paper we analyze the performance in terms of Bit Error Rate (BER) and Frame Error Rate (FER) of a multi-binary turbo coded system over Rayleigh flat fading multipaths channels. The turbo codes (TCs) proposed here calls for the parallel concatenation of two identical rate r/(r+1) recursive systematic convolutional RSC codes. It results rate r/(r+2) Multi-Binary Turbo Code (MBTC). Data bl...

This paper presents an improved control strategy for both the rotor side converter (RSC) and grid side converter (GSC) of a doubly fed induction generator (DFIG)-based wind turbine (WT) system to enhance the low voltage ride through (LVRT) capability. Within the proposed control strategy, the RSC control introduces transient feed-forward compensation terms to mitigate the high frequency harmoni...

La Responsabilidad Social Corporativa (RSC) es considerada una actividad legitimadora para las organizaciones y un valor esencial la reputación fundamentalmente en situaciones de crisis. Las redes sociales, especialmente Twitter, son herramientas beneficiosas comunicación RSC. Esta red social se considera herramienta ideal gestionar durante Así, el objetivo principal esta investigación analizar...

With experience we become accustomed to the types of environments that we normally encounter as we navigate in the world. But how does this fundamental knowledge develop in the first place and what brain regions are involved? To examine de novo environmental learning, we created an 'alien' virtual reality world populated with landmarks of which participants had no prior experience. They learned...

This paper presents a novel algorithm, called Radial Sector Coding (RSC), for Translation, Rotation and Scale invariant character recognition. Translation invariance is obtained using Center of Mass (CoM). Scaling invariance is achieved by normalizing the features of characters. To obtain most challenging rotation invariance, RSC searches a rotation invariant Line of Reference (LoR) by exploiti...

ATPases and histone chaperones facilitate RNA polymerase II (pol II) elongation on chromatin. In vivo, the coordinated action of these enzymes is necessary to permit pol II passage through a nucleosome while restoring histone density afterward. We have developed a biochemical system recapitulating this basic process. Transcription through a nucleosome in vitro requires the ATPase remodels struc...