نتایج جستجو برای: die exit channel

تعداد نتایج: 366651  

Journal: :BioTechniques 2002
C M Hamilton M Anderson J Lape E Creech J Woessner

High-throughput genomic approaches to gene function or target identification have led to the development and implementation of the 96-well format for many standard molecular biology manipulations. The apparatus described here, a Multichannel Plating Unit, is designed to plate out individual cultures efficientlyfrom standard 96-well culture blocks. Following transformation, aliquots of culture a...

Journal: :Molecular cell 2018
Jin Young Kang Tatiana V Mishanina Michael J Bellecourt Rachel Anne Mooney Seth A Darst Robert Landick

Sequence-specific pausing by RNA polymerase (RNAP) during transcription plays crucial and diverse roles in gene expression. In bacteria, RNA structures are thought to fold within the RNA exit channel of the RNAP and can increase pause lifetimes significantly. The biophysical mechanism of pausing is uncertain. We used single-particle cryo-EM to determine structures of paused complexes, including...

Journal: :The Journal of Cell Biology 2002
William A. Wells

he protein that does everything, 14–3-3, has now been shown to direct traffic. Ita O'Kelly, Steve Goldstein, and colleagues (Yale University, New Haven, CT) find that 14–3-3 can displace ␤-COP from various proteins, thus freeing them from retention in the ER and leading to surface expression. Goldstein set out to find proteins interacting with the COOH terminus of a K ϩ leak channel, KCNK3, and...

2013
Christopher Freitag Klaus D. Wilde

Gegenstand dieses Beitrags ist ein Optimierungsmodell zur Auswahl und Koordination der Kommunikationskanäle zur Kundenansprache im Multi Channel Management. Dieses ordnet unter Berücksichtigung der verfügbaren Kanal-Kapazitäten den kundenbezogenen Geschäftsprozessen kundengruppenspezifisch den geeignetsten Kommunikationskanal zu. Dabei benennt zunächst eine kurze Motivation den Hintergrund und ...

2001
Joachim Hagenauer Rainer Bauer

The ’turbo’ principle has been widely applied to various detection/decoding problems in recent years. Here we show how the general idea can be extended to a communication scheme where a variable length code is used for data compression followed by a channel code to protect the data against channel errors. Iterations are performed between the channel decoder and the decoder for the variable leng...

Journal: :The Journal of Cell Biology 2002
William A. Wells

he protein that does everything, 14–3-3, has now been shown to direct traffic. Ita O'Kelly, Steve Goldstein, and colleagues (Yale University, New Haven, CT) find that 14–3-3 can displace ␤-COP from various proteins, thus freeing them from retention in the ER and leading to surface expression. Goldstein set out to find proteins interacting with the COOH terminus of a K ϩ leak channel, KCNK3, and...

Journal: :Molecular cancer therapeutics 2009
Michael E Bekier Robert Fischbach Jennifer Lee William R Taylor

Cell death induced by agents that disrupt microtubules can kill cells by inducing a prolonged mitotic block. This mitotic block is dependent on the spindle assembly checkpoint, a surveillance system that ensures the bipolar attachment of chromosomes to the mitotic spindle before the onset of anaphase. Under some conditions, the spindle assembly checkpoint can become weakened, allowing cells to ...

Journal: :Neuron 2004
Andrey Kosolapov LiWei Tu Jing Wang Carol Deutsch

The T1 recognition domains of voltage-gated K(+) (Kv) channel subunits form tetramers and acquire tertiary structure while still attached to their individual ribosomes. Here we ask when and in which compartment secondary and tertiary structures are acquired. We answer this question using biogenic intermediates and recently developed folding and accessibility assays to evaluate the status of the...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Pascal F Egea Robert M Stroud

The structure of the protein-translocating channel SecYEβ from Pyrococcus furiosus at 3.1-Å resolution suggests a mechanism for chaperoning transmembrane regions of a protein substrate during its lateral delivery into the lipid bilayer. Cytoplasmic segments of SecY orient the C-terminal α-helical region of another molecule, suggesting a general binding mode and a promiscuous guiding surface cap...

Journal: :IEICE Transactions 2007
Takayuki Itsui Kenta Kasai Ryoji Ikegaya Tomoharu Shibuya Kohichi Sakaniwa

The average bit erasure probability of a binary linear code ensemble under maximum a-posteriori probability (MAP) decoding over binary erasure channel (BEC) can be calculated with the average support weight distribution of the ensemble via the EXIT function and the shortened information function. In this paper, we formulate the relationship between the average bit erasure probability under MAP ...

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