collective properties of motor proteins

... rotary motor only 45 nm in diameter made from about 20 different kinds of parts Control of the direction of rotation of these motors is the basis for the chemotactic response, i.e for the ability of ... Laboratory of Biophysical Chemistry, Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran E-mail: divsalar@ibb.ut.ac.ir One of the most widely studied and fascinating proteins of ... Group, Department of Biophysics, University of Pe´cs, Pe´cs, Hungary, Protein Research Group of Hungarian Academy of Sciences, Department of Medicinal Chemistry, University of Szeged, Szeged,...

Ngày tải lên: 23/03/2014, 15:20

... summary of the independent parameters the modified foaming apparatus FOAMING PROPER TIES used far experi- Nature Fixed Diameter Porosity Volume Volume Mass of of sparging disc of sparging disc of ... experimental proteins and furthermore the incorporation of air increases the temperature of the precooled protein solution during whipping This affects observed foaming properties The amount of protein ... Because of the variety of methods employed it is difficult to compare data from different sources There is a need for a practical standardized method for determining foaming properties of food proteins...

Ngày tải lên: 16/12/2012, 15:10

... dotted line) Heme binding of Surf1 mutants Earlier expression studies of wild-type Surf1 proteins in E coli, in the presence of CtaB and CtaA, con- Fig Gel electrophoresis of purified Paracoccus denitrificans ... purification of Surf1 Heterologous expression of apo-Surf1 in E coli was performed in the absence of the Paracoccus heme a-synthesizing machinery as described previously [16] Expression of Surf1 proteins ... Paracoccus denitrificans CtaA proteins 1778 Fig S2 Native redox difference spectra of purified CtaA proteins Fig S3 Pyridine hemochromogen redox spectra of purified CtaA proteins Table S1 Strains used...

Ngày tải lên: 06/03/2014, 00:21

... be noted that the TH value of the TisAFP natural product (i.e isoform mixture) was approximately half of that of the TisAFP8 isoform, suggesting a very low percentage of TisAFP8 in the TisAFP sample ... Biochemical properties of AnpAFP 396 D 116.25 97.4 66.2 C Figure shows the biochemical properties of AnpAFP SDS ⁄ PAGE (Fig 2A) followed by silver staining showed that the molecular mass of AnpAFP ... Leu 5.4 9.3 Phe 3.6 3.4 Fig (A) Alignment of the N-terminal sequences of AnpAFP with those of three TisAFP isoforms The 10th residue from the N-terminus of AnpAFP (marked X) could not be conclusively...

Ngày tải lên: 22/03/2014, 21:20

... previously, that the YFP moiety does not affect the functional properties of the proteins [21,24,33] The functional activities of the proteins were determined by infecting U373 monolayers at moi ... important for the role of pp71 in activation of gene expression The intranuclear localization of the UL82 homologs was investigated by immunofluorescence after infection of HFFF2 cells at moi ... distribution of the protein whereas, by contrast, only 1% of pp71-positive profiles were dispersed The localizations of the other three homologs, B82, Rh82 and Ch82, were intermediate between those of...

Ngày tải lên: 12/08/2014, 04:21

... previously, that the YFP moiety does not affect the functional properties of the proteins [21,24,33] The functional activities of the proteins were determined by infecting U373 monolayers at moi ... important for the role of pp71 in activation of gene expression The intranuclear localization of the UL82 homologs was investigated by immunofluorescence after infection of HFFF2 cells at moi ... distribution of the protein whereas, by contrast, only 1% of pp71-positive profiles were dispersed The localizations of the other three homologs, B82, Rh82 and Ch82, were intermediate between those of...

Ngày tải lên: 12/08/2014, 04:21

... elution profiles of Rgp41 proteins were compared to a calibration curve realized with standard globular proteins An elution volume of 10.0 ml corresponds to an apparent molecular weight of 50 kDa ... load after interruption of HAART [3,7] Furthermore, patients often stop treatment due to the onset of side effects and viral resistance often develops, making one or more of the drugs ineffective ... interactions between the viral envelope glycoproteins and receptor molecules expressed at the surface of target cells [9-11] Envelope glycoproteins consist of trimers of two noncovalently associated subunits,...

Ngày tải lên: 13/08/2014, 09:21

... operations Chapter 7- Properties of Convolution 127 2.0 a Original signal Amplitude 1.0 0.0 -1.0 FIGURE 7-3 Example of calculus-like operations The signal in (b) is the first difference of the signal ... curve of the form: sin(x)/(x) , is used to separate one band of frequencies from another c Sinc 0.3 Amplitude Amplitude 0.3 0.2 0.1 0.0 -0.1 -20 -15 -10 Sample number Chapter 7- Properties of Convolution ... affect any of the output signal values As shown by the examples in Fig 7-6, the impulse response of a causal system must have a value of zero for all negative numbered samples Think of this from...

Ngày tải lên: 13/09/2012, 09:49

... University of Bari in 1979 University Researcher at the of Engines and Energy Institute of the Faculty of Engineering at the University of Bari from 1983 to 1987 Associate professor of Technical ... measure of conductance The analyses, done in the laboratory of Technical Physics of the Polytechnic of Bari, were performed on some samples of calcarenite sandstone and calcareous stone of Fasano ... typologies of building wall: a wall in blocks of calcarenite sandstone assembled with mortar, typical of the constructions of "Sassi of Matera," and a masonry made with dry calcareous stones of Fasano,...

Ngày tải lên: 05/09/2013, 14:58

... Figure Effect of time of heatsetting on the linearity of load extension in weft direction of knitted Ingeo™ Poly (lactic acid) Figure Mean effect of time of heatsetting on the linearity of load extension ... Increasing time of heatsetting had effect on tensile properties of PLA at varying times of 30s to 90s at temperature of 130°C Optimum effect on tensile properties occurred at times of 30 – 45s PLA ... [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension EM [%] of Ingeo™ Poly (lactic acid) 3.2 Linearity of load extension curve LT [-] The linearity of load extension curve...

Ngày tải lên: 05/09/2013, 16:10

... pH Because most of the chemical and biochemical reaction are influenced by the pH it is of great practical importance The adverse affect of most of the acids appear below and of alkalis above ... quality criteria of an aquatic system In the system where rate of respiration and organic decomposition are high ,the DO values remain lower than those of system where the rate of photosynthesis ... growth and activities of microorganism 3.6 Biological Oxygen demand It has been used as a measure of the amount of organic materialism an aquatic solution which support the growth of microorganism...

Ngày tải lên: 05/09/2013, 16:11

Ngày tải lên: 08/10/2013, 20:20

... owner of the derivative security should exercise it If he does not, then the seller of the security can immediately consume f Vk ! , + r IE Vk+1jF k ! and still maintain the hedge 6.2 Proofs of ... maintain the hedge 6.2 Proofs of the Properties Let fGk gn=0 be a sequence of non-negative random variables such that each Gk is F k -measurable k Define Tk to be the set of all stopping times satisfying ... Lemma 2.18 Proof: Take Vk  Gk for every k Tk to be the constant k Lemma 2.19 The process f1 + r,k Vk gn=0 is a supermartingale k Proof: Let  attain the maximum in the definition of Vk+1 , i.e.,...

Ngày tải lên: 18/10/2013, 03:20

... biofarming is a major goal of plant biotechnology Direct transfer of plant genes has resulted in new varieties with improved properties However, this approach is limited by the genetic stock of ... generate plants with high-quality food properties or capable of producing renewable products (biofarming) (Fig 4.1) Despite the many potential advantages of cyanobacterial genes, their use has ... the various existing Use of Cyanobacterial Proteins 67 Fig 4.1 Summary of current advances in plant biotechnology using cyanobacterial genes Gene mining on cyanobacteria offers a promising opportunity...

Ngày tải lên: 25/10/2013, 05:20

... a series of captors), and are thus much noisier 250 Static properties of granular materials F r p h z Fig 14.13 Sketch of the experimental set-up of Reydellet et al for the measure of the pressure ... focused on the quasistatic rheology of a granular system, so why is all of this related to the description of its statics? As a matter of fact, the static properties of the studied sample are responsible ... horizontal position of the apex of the pile – also, changing the sign of x changes that of the shear σx z More generally, the stress state of the jammed grain packing is assumed to be of the form σx...

Ngày tải lên: 01/11/2013, 08:20

... Formaldehyde increases infectivity Viruses DNA or RNA  Shell of protein (capsid) surrounding nucleic acid   Classification on basis of nucleic acid  DNA viruses: eg Herpes simplex virus (HSV) ... body Varicella zoster virus (VZV) VZV: Chickenpox VZV: Shingles Re-activation of latent infection Suppression of cell mediated immunity Bacteria  Unicellular,  DNA and RNA  Binary  No prokaryotes ... (transfer of plasmid DNA) Important bacterial products 1: extracellular polysaccharide  CAPSULE condensed, well defined layer closely surrounding the cell contributes to invasiveness of pathogenic...

Ngày tải lên: 12/12/2013, 17:15

Ngày tải lên: 17/12/2013, 15:19

... and 2.8(f) These may be thought of as the absence of a plane of atoms (intrinsic stacking faults) or the insertion of rows of atoms that disturb the arrangement of atoms (extrinsic stacking faults) ... example of volume defects is presented in Fig 2.9 This shows MnS inclusions in an A707 steel Another example of a volume defect is presented in Fig 1.16(d) This shows evidence of $1–2 vol % of porosity ... approximately 0.3–0.5 of the melting temperature in degrees Kelvin Since the evolution of microstructure is often controlled by diffusion processes, a brief introduction to elementary aspects of diffusion...

Ngày tải lên: 23/12/2013, 00:15

... mechanical properties of materials It is not intended to be a comprehensive review of all the different aspects of mechanical properties; such a task would be beyond the capabilities of any single ... macroscopic level of understanding of structure [Figs 16(a)–(d)] They are often unaware of the atomic and microstructural constituents that can affect the mechanical behavior of materials and of the role ... Appreciation is also extended to Prof Tom Eager and Prof Nam Suh of MIT for inviting me to spend a sabbatical year as Visiting Martin Luther King Professor in the departments of Materials Science and Engineering...

Ngày tải lên: 23/12/2013, 00:15