نتایج جستجو برای: adf

تعداد نتایج: 2787  

Journal: :Investigative ophthalmology & visual science 1994
C D Gauntt A Ohira O Honda K Kigasawa T Fujimoto H Masutani J Yodoi Y Honda

PURPOSE Adult T cell leukemia derived factor (ADF) is a human homologue of thioredoxin (hTx), which exhibits scavenging activity with reactive oxygen intermediates. In their previous study, the authors found that after transient retinal ischemia, the expression of thioredoxin in rat retinal pigment epithelium (RPE) layer increased markedly. The present investigation is to determine intracellula...

Journal: :Current Biology 2004
Daniel Huemmerich Thomas Scheibel Fritz Vollrath Shulamit Cohen Uri Gat Shmulik Ittah

Spider dragline silk, which exhibits extraordinary strength and toughness, is primarily composed of two related proteins that largely consist of repetitive sequences. In most spiders, the repetitive region of one of these proteins is rich in prolines, which are not present in the repetitive region of the other. The absence of prolines in one component was previously speculated to be essential f...

2015
Silvia Haase Dennis Zimmermann Maya A. Olshina Mark Wilkinson Fabio Fisher Yan Hong Tan Rebecca J. Stewart Christopher J. Tonkin Wilson Wong David R. Kovar Jake Baum Laurent Blanchoin

Proteins of the actin-depolymerizing factor (ADF)/cofilin family have been shown to be crucial for the motility and survival of apicomplexan parasites. However, the mechanisms by which ADF proteins fulfill their function remain poorly understood. In this study, we investigate the comparative activities of ADF proteins from Toxoplasma gondii and Plasmodium falciparum, the human malaria parasite,...

Journal: :The Journal of biological chemistry 1999
F Ressad D Didry C Egile D Pantaloni M F Carlier

The effect of Arabidopsis thaliana ADF1 and human ADF on the number of filaments in F-actin solutions has been examined using a seeded polymerization assay. ADF did not sever filaments in a catalytic fashion, but decreased the steady-state length distribution of actin filaments in correlation with its effect on actin dynamics. The increase in filament number was modest as compared with the larg...

2006
Rong Hu Yunxin Zhao

An adaptive enhancement method is proposed to improve recognition accuracy on the outputs of blind speech separation (BSS) system based on adaptive decorrelation filtering (ADF) in diffuse noise. A divide and conquer strategy is taken to deal with the noise effects on both system adaptation and ADF outputs. First, fast noise compensation (NC) is performed for filter adaptation, forcing ADF to f...

2005
Ya-Ting C. Yang Timothy J. Newby Robert L. Bill

This study investigated the effects of using Socratic questioning to enhance students’ critical thinking (CT) skills in asynchronous discussion forums (ADF) in university-level distance learning courses. The research effort empirically examined two coherent subjects: (a) the efficacy of teaching and modeling Socratic questioning for developing students’ CT skills in ADF and (b) the persistence ...

2010
SHU-PING SHI Hang Seng Heather Anderson Farshid Vahid

Identifying explosive bubbles under the influence of their periodically collapsing property has long been a concern in bubble testing literature. In this paper, we argue that the sup Augmented Dickey-Fuller (ADF) test (Phillips, Wu and Yu, 2009), which implements a right-tail ADF test and a sup test on a forward expanding sample sequence, is sensitive to the sample starting point when there are...

2011
Vladimir Gajinov Adrian Cristal Milos Milovanovic Eduard Ayguade Osman Unsal Mateo Valero

Many concurrent programs require some form of conditional synchronization to coordinate the execution of different program tasks. Programming these algorithms using transactional memory (TM) often results in a high conflict rate between transactions. In this paper we propose an Atomic dataflow model ADF, which aims to reduce transaction conflicts by incorporating dataflow scheduling principles ...

Journal: :The Journal of biological chemistry 2007
Mitsuharu Endo Kazumasa Ohashi Kensaku Mizuno

Cofilin and its closely related protein, actin-depolymerizing factor (ADF), are key regulators of actin cytoskeleton dynamics that have been implicated in growth cone motility and neurite extension. Cofilin/ADF are inactivated by LIM kinase (LIMK)-catalyzed phosphorylation and reactivated by Slingshot (SSH)-catalyzed dephosphorylation. Here we examined the roles of cofilin/ADF, LIMKs (LIMK1 and...

Journal: :The Journal of comparative neurology 2010
Michel K Herde Eckhard Friauf Marco B Rust

Hair cells, the inner ear's sensory cells, are characterized by tens to hundreds of actin-rich stereocilia that form the hair bundle apparatus necessary for mechanoelectrical transduction. Both the number and length of actin filaments are precisely regulated in stereocilia. Proper cochlear and vestibular function also depends on actin filaments in nonsensory supporting cells. The formation of a...

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