نتایج جستجو برای: barrels

تعداد نتایج: 1113  

Journal: :Journal of Neural Transplantation 1989
F. L. Andrés

In the mouse whiskerpad there is a group of vibrissal follicles arranged in five rows, which are topologically represented in the contralateral somatosensory cortex by the barrelfield. Each vibrissal follicle is a specialized sensory organ containing a large number of receptors, mostly Merkel cells. In these experiments, the parts of the vibrissal follicles containing most of the receptors were...

Journal: :Somatosensory & motor research 2009
Chia-Chien Chen Robert Steger Joshua C Brumberg

The twenty-first annual Barrels meeting, sponsored by NINDS, was held on 12-14 November 2008 on the campus of Johns Hopkins University, near the site of the original discovery of barrels almost 40 years ago. The longest running satellite meeting to the Society for Neuroscience Annual Meeting focuses on the development, physiology, and behavior of the rodent whisker-to-barrel sensorimotor system...

2018
Vitor M Almeida Maira A Frutuoso Sandro R Marana

Proteins that fold as (β/α)8 barrels are thought to have evolved from half-barrels that underwent duplication and fusion events. The evidence is particularly clear for small barrels, which have almost identical halves. Additionally, computational calculations of the thermodynamic stability of these structures in the presence of denaturants have revealed that (β/α)8 barrels contain two subunits ...

2001
E. KAJFASZ

One main improvement included in the D0 detector upgrade 1 for Run IIa is its central tracking system as shown in Fig. 1. It includes a 2 T superconducting solenoid, a Central scintillating Fiber Tracker (CFT) and the SMT. The SMT design is driven by two classes of events. Barrels and central disks cover the ∼ 25 cm RMS long luminous region for high pT central physics (|η| < 1.5). Forward disks...

2005
Eddy Isaacs

The worldwide global demand for oil has grown by 150% since 1965 and 20% in the past 20 years to the current 80 million barrels per day, and is projected to grow by 50% more in the next 20 years [1]. The growth in global demand for oil comes at a time when the supply from relatively cheap conventional sources is declining, and reserves are not being replaced with new discoveries [2]. However, t...

Journal: :Protein science : a publication of the Protein Society 2002
William C Wimley

The amino acid composition and architecture of all beta-barrel membrane proteins of known three-dimensional structure have been examined to generate information that will be useful in identifying beta-barrels in genome databases. The database consists of 15 nonredundant structures, including several novel, recent structures. Known structures include monomeric, dimeric, and trimeric beta-barrels...

Journal: :Biochemistry 2005
Muthu Ramakrishnan Jian Qu Cosmin L Pocanschi Jörg H Kleinschmidt Derek Marsh

The outer-membrane proteins OmpA and FhuA of Escherichia coli are monomeric beta-barrels of widely differing size. Polarized attenuated total reflection infrared spectroscopy has been used to determine the orientation of the beta-barrels in phosphatidylcholine host matrices of different lipid chain lengths. The linear dichroism of the amide I band from OmpA and FhuA in hydrated membranes genera...

Journal: :Structure 2005
Murray Coles Sergej Djuranovic Johannes Söding Tancred Frickey Kristin Koretke Vincent Truffault Jörg Martin Andrei N Lupas

AbrB is a key transition-state regulator of Bacillus subtilis. Based on the conservation of a betaalphabeta structural unit, we proposed a beta barrel fold for its DNA binding domain, similar to, but topologically distinct from, double-psi beta barrels. However, the NMR structure revealed a novel fold, the "looped-hinge helix." To understand this discrepancy, we undertook a bioinformatics study...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1981
W D Dietrich D Durham O H Lowry T A Woolsey

The whiskers on the face of mice project through several synapses to anatomically distinct cortical structures called barrels. In this study, the activities of six energy-related enzymes in isolated barrels in layer IV in the somatosensory cortex of adult mice were determined using quantitative histochemical techniques. Data from control barrels and from barrels for which the corresponding whis...

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