نتایج جستجو برای: capping

تعداد نتایج: 6162  

Journal: :The Journal of Experimental Medicine 1981
H B Dickler M T Kubicek

The independent B lymphocyte surface membrane receptors IgM and Fc IgG receptors were evaluated for interactions using immunoflourescence. Ligand [F(ab')2 anti-mu]-induced capping of surface IgM resulted in capping of Fc IgG receptors only if the latter were occupied during the capping process by: (a) soluble antigen-antibody complexes that themselves provided insufficient cross-linking to resu...

Journal: :Journal of cell science 2005
Thomas S Söderström Sofia D Nyberg John E Eriksson

Upon engagement, the CD95 receptor is rapidly clustered into cellular 'caps'. This receptor capping is one of the first events to take place following activation and it has been proposed to be important for the initiation of apoptotic signaling. As the biological roles of CD95 capping are still elusive, we explored in detail the role of capping in induction of apoptosis in lymphocytes. CD95 cap...

Journal: :The Journal of biological chemistry 2004
Martin A Wear John A Cooper

S100B binds tightly to a 12-amino acid peptide derived from heterodimeric capping protein. In native intact capping protein, this sequence is in the C terminus of the alpha-subunit, which is important for capping the actin filament. This C-terminal region is proposed to act as a flexible "tentacle," extending away from the body of capping protein in order to bind actin. To this hypothesis, we a...

Journal: :Genome Biology 2001

Journal: :Protein Science 1998

Journal: :Reactome - a curated knowledgebase of biological pathways 2003

2012
M. Ishizaki T. Fuchigami T. Katagiri T. Sasagawa Y. Kitamoto O. Odawara H. Wada

The effect of silica-capping on the afterglow property of Sr2MgSi2O7:Eu,Dy nanoparticles was investigated. Sr2MgSi2O7:Eu,Dy nanoparticles were prepared by laser ablation in liquid. Afterglow nanoparticles were capped with silica using Stöber method. A dense silica capping layer was achieved after 4 hours of reaction. Silica-capping of the afterglow nanoparticles improved the particles’ afterglo...

Journal: :Molecular cell 2015
Fuensanta W Martinez-Rucobo Rebecca Kohler Michiel van de Waterbeemd Albert J R Heck Matthias Hemann Franz Herzog Holger Stark Patrick Cramer

Capping is the first step in pre-mRNA processing, and the resulting 5'-RNA cap is required for mRNA splicing, export, translation, and stability. Capping is functionally coupled to transcription by RNA polymerase (Pol) II, but the coupling mechanism remains unclear. We show that efficient binding of the capping enzyme (CE) to transcribing, phosphorylated yeast Pol II (Pol IIp) requires nascent ...

Gharibshahian, , Tafreshi, ,

KTiOPO4(KTP) nanoparticles were synthesized by co-precipitation method using L-Alanine as capping agent. Different mole ratios of L-Alanine used to study on the effect of capping agent concentration on size, structural quality and morphology of KTP nanoparticles. XRD analysis confirmed the formation of orthorhombic phase of obtained KTP nanoparticles. Using L-Alanine as capping agent results in...

Journal: :The Journal of biological chemistry 1990
S Gupta R Singh R Reddy

U6 small nuclear RNA (snRNA) is a required component in the splicing of eukaryotic pre-mRNAs. Mammalian U6 snRNA was synthesized in vitro by T7 RNA polymerase and purified on polyacrylamide gels. This U6 RNA, with pppG on its 5' end, was accurately capped to CH3-O-pppG, when incubated with HeLa cell extract and this capping was dependent on the capping signal present within the U6 snRNA. When g...

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