equations of the form b k •••• t dt f ••••

Structure and rheology of mixtures of the protein b lactoglobulin and the polysaccharide k carrageenan

... consider also the activity of the counterions in the calculation of the total ion concentration For instance, in the case of potassium counterions the effective potassium concentration in salt free κ-car ... gelation of either the proteins or the polysaccharides, or both Gelation of one type of macromolecules will be influenced by the presence of the other type, when both are present When both the ... the refractive index of the solution and λ is the wavelength of the incident light In dilute solution the radius of gyration (Rg) can be calculated from the initial dependence of the intensity...

Ngày tải lên: 12/07/2015, 13:00

131 272 0

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Structure and rheology of mixtures of the protein b lactoglobulin and the polysaccharide k carrageenan

... consider also the activity of the counterions in the calculation of the total ion concentration For instance, in the case of potassium counterions the effective potassium concentration in salt free κ-car ... gelation of either the proteins or the polysaccharides, or both Gelation of one type of macromolecules will be influenced by the presence of the other type, when both are present When both the ... the refractive index of the solution and λ is the wavelength of the incident light In dilute solution the radius of gyration (Rg) can be calculated from the initial dependence of the intensity...

Ngày tải lên: 18/07/2016, 20:12

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Báo cáo y học: "Study of the early steps of the Hepatitis B Virus life cycle"

... could be inhibited by recombinant HBs but not by the recombinant LHBs The binding of SHBs with human hepatocytes was further supported by the observation from Bruin et al [39] They have found that ... raise the pH in the endosome, Offensperger et al found that the uptake of DHBV has been blocked [64] In contrast, Rigg et al reported that the treatment of ammonium chloride did not affect the uptake ... supported by the observation of the conformation change of the large surface protein of DHBV at low pH condition [62] However, the more detail investigation was from the kinetic study of the uptake...

Ngày tải lên: 03/11/2012, 10:09

13 654 1

Tài liệu Báo cáo khoa học: Limited suppression of the interferon-b production by hepatitis C virus serine protease in cultured human hepatocytes pptx

... control (NS–) (A) Effect of NS3-4A on the IFN -b gene promoter activated by T- pIC treatment (B) Effect of NS3-4A on the IFN -b gene promoter activated by M-pIC treatment (C) Effect of NS3-4A on the ... M-pIC treatment First, in T- pIC treatment, the results showed that NS3-4As (the 1B- 1 and HCV-O strains of genotype 1b) could drastically inhibit the enhancement of the IFN -b gene promoter activity, ... transfected with TLR3 or TRIF siRNA, but not in the PH5CH8 cells transfected with GL2 or TLR4 siRNA (Fig 3B) This result suggests that the activation of IRF-3 by M-pIC treatment is mediated by...

Ngày tải lên: 18/02/2014, 16:20

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Tài liệu Báo cáo khoa học: Long-distance interactions between enhancers and promoters The case of the Abd-B domain of the Drosophila bithorax complex pdf

... deﬁned by the promoters of the two reporter genes (3¢ to one of them, Fig 4, bottom), the PTS is able to overcome the enhancer blocking effect of the boundary, and restricts the enhancer activity to ... near the promoter [13] Deletion of these sequences together with the promoter appears to free the enhancers from a bond that tethers them to the Abd -B gene in cis, and allows them to regulate the ... some fundamental way from that formed within the BX-C Conceivably, the normal function of the PTS in iab-7 is to help enhancers bypass the enhancer-blocking activity of the Fab)8 boundary without...

Ngày tải lên: 20/02/2014, 01:20

7 719 0

Tài liệu Báo cáo Y học: Electrochemical, FT-IR and UV/VIS spectroscopic properties of the caa3 oxidase from T. thermophilus docx

... induced FT-IR difference spectra, contributions from the reorganization of the polypeptide backbone upon electron transfer to and from the cofactors can be expected, and a partial attribution of the ... assigning these modes on the basis of the data presented here, in spite of the fact that bands in the difference spectra are observed in the region where the modes were attributed The vibrational ... oxidized at this potential in the presence of cyanide, since the contribution of the unbridged Fea33+–CN– structure was reported to be observable at 2132 cm)1 The position of the cynide vibrational...

Ngày tải lên: 21/02/2014, 15:20

9 529 0

Báo cáo khoa học: Functional analysis of the aglycone-binding site of the maize b-glucosidase Zm-p60.1 pot

... conferred by the W37 3K mutation indicate a previously unrecognized function of W373 in the determination of the catalytic rate of the enzyme, albeit one that is consistent with the involvement of F1 93–aglycone–W373 ... Findings that cytokinin-O-glucosides are natural substrates for both of the two b- glucosidases, Zm-p60.1 and Bgl4:1, but the architecture of their sites that recognize the aglycone moieties of these ... mutations not result in any change in the thermostability of the enzyme (Table S2), and thermal unfolding of the wild-type and both the F1 93A and W37 3K mutants was found to be irreversible (Fig...

Ngày tải lên: 16/03/2014, 04:20

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Báo cáo khoa học: CpG methylation of the CENP-B box reduces human CENP-B binding pptx

... Y Tanaka et al revealed that the presence of the CENP -B box is essential for the formation of functional minichromosomes [15,16] Therefore, the CENP -B box is required for the formation of a functional ... interaction between CENP -B and the CpG-methylated CENP -B box In eukaryotes, DNA methylation occurs at the C5 atom of cytosine by the action of methyltransferases To evaluate the effect of CpG methylation ... We tested whether the CpG methylations of the CENP -B box DNA actually affect CENP -B binding to the DNA, as suggested by the CENP -B( 1–129)– 284 Y Tanaka et al A B C Fig The complex-reconstitution...

Ngày tải lên: 16/03/2014, 18:20

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The fabric of the cosmos b greene

... part of the probability wave left out of Figure 4.5 (the part extending throughout the rest of the universe) looks very much like the part near the edges of the figure: quite flat and near the ... bucket start to spin, there is definitely relative motion between the bucket and the water, because the water does not immediately move Even so, the surface of the water stays flat Then, a little ... the fixed stars in the skpi Might it be that such relative motion can account for the shape of the water's surface, eliminating the need to introduce the concept of absolute space? That was the...

Ngày tải lên: 17/03/2014, 14:04

289 244 0

Báo cáo khoa học: Direct CIII–HﬂB interaction is responsible for the inhibition of the HﬂB (FtsH)-mediated proteolysis of Escherichia coli r32 by kCIII docx

... the proteolysis of CII [11], because CIII itself is a substrate of H B [12] CIIIC, the central region of CIII, is not a substrate of H B, and acts as a better inhibitor for digestion of CII by ... enabled by the binding of its central helical region to the substrate-entry cleft of H B [22], as pointed out previously [11] This probably makes CIII a general inhibitor for the cytosolic substrates ... CIII, because both are H B substrates The relative binding afﬁnity for r32–H B interaction and CIII–H B interaction would play an important role in the inhibition of proteolysis of r32 by H B Interestingly,...

Ngày tải lên: 23/03/2014, 10:20

6 454 0

Báo cáo khoa học: Mechanism for transcriptional synergy between interferon regulatory factor (IRF)-3 and IRF-7 in activation of the interferon-b gene promoter docx

... transcription factor depends on the promoter context, which refers both to the speciﬁc arrangement of the cis-acting elements in the promoter and to the nature of the factors they bind To investigate the ... afﬁnity for DNA, but also for the coactivators Nevertheless, the observation of a strong threshold effect, even with the IRF-3E7/IRF-7Di-containing set (Fig 5B) , further suggests that the binding of ... Similarly, interactions with p50 or p65 were weak but detectable with all GST fusions tested The strength of the interactions among transcription factors was, with the exception of that between ATF-2...

Ngày tải lên: 23/03/2014, 13:20

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Báo cáo khoa học: Interactions of the antimicrobial b-peptide b-17 with phospholipid vesicles differ from membrane interactions of magainins potx

... This is not meant to imply that a peptide that promotes negative curvature will cause the formation of nonlamellar structures, but rather that it will facilitate the formation of transient structures ... negative curvature is related to the lytic action of mastoparan is not well understood, except for the fact that it would tend to destabilize the bilayer phase toward the formation of inverted phase ... the bilayer normal predominates If b- 17 promoted the formation of a similar pore arrangement, but the diameter of the pore were smaller than that of magainin, then the negative curvature in the...

Ngày tải lên: 31/03/2014, 07:20

9 266 0

Báo cáo Y học: Barley a-amylase Met53 situated at the high-affinity subsite )2 belongs to a substrate binding motif in the bfia loop 2 of the catalytic (b/a)8-barrel and is critical for activity and substrate specificity pot

... mutants [3638] that the bond cleavage pattern of PNPG7 was identical to or very similar to wild-type with the notable present exception of Met53Trp Thus even though the rates of hydrolysis of the ... only 35% It is proposed that combination of the present mutations and mutations at other subsites can accentuate the suppression of activity for shorter substrates and further develop the enzyme ... presence of active site interactions which would normally control development both of substrate distortion and a negative electrostatic eld at the site of catalysis The bulky side-chain in the cleft...

Ngày tải lên: 31/03/2014, 08:20

14 557 0

Báo cáo hóa học: "Quantification of newly produced B and T lymphocytes in untreated chronic lymphocytic leukemia patients" ppt

... fragments of KRECs, TRECs and TRAC The number of KRECs or TRECs (copies/PBMC) is calculated with the following formula: mean of KRECs or TRECs quantity mean of TRAC quantity / (1) The mean quantity of ... reliable estimate of the amount of newly produced B and T lymphocytes [8,9] Here, we applied the new assay, together with the flow cytometry, to quantify the number of recently produced B and T ... lymphocytes in the patients compared to controls This result suggests that one of the reasons of the early IgM decrease could be attributed to the reduced production of new B lymphocytes because if...

Ngày tải lên: 18/06/2014, 16:20

7 560 0

Báo cáo toán học: "A Presentation of the Elements of the Quotient Sheaves Ωk /Θk in Variational Sequences" pdf

... contact k- forms r,0 r(c) k = ker pk r ,k n , n + ≤ k ≤ N , is the sheave of strongly contact k- forms r(c) Let k = d k 1 + k In [3] and [5] the authours proved the softness of r r(c) r(c) the sheaves ... di f. dxi , where f yσ σ ∂yj1 jk j1 jk , we denote by ρ0 the horizontal component of ρ, and For any k -form ρ ∈ ρq , ≤ q ≤ k, is the q-contact component of ρ Then for any ρ ∈ k there exists ... wJh+1 ∧ + t= 1 t 1 wJt−1 t t+1 k n−1 ∧ wJt j2 ∧ wJt+1 ∧ ∧ wJk−n−1 σ σ A Presentation of the Elements of the Quotient Sheaves k / k r r k n−1 σ 281 σ σ1 t t−1 t+ 1 J1 Jk−n−1 f 1 k n j1 j2...

Ngày tải lên: 06/08/2014, 05:20

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Báo cáo toán học: "A reﬁnement of the formula for k-ary trees and the Gould-Vandermonde’s convolution" pps

... 3, the tree on the left side is of the ﬁrst class while the other belongs to the second class For simplicity of the remaining presentment, we describe the core idea of the above involution in the ... his study The author is also very grateful to the referees for their valuable suggestions and comments This work was supported by the 973 Project, the PCSIRT Project of the Ministry of Education, ... ﬁrst class consists of trees in which there is at least one colored leaf in the lowest two levels (the two levels furthest to the root) and to the left of which all vertices in the same level have...

Ngày tải lên: 07/08/2014, 15:23

9 242 0

Báo cáo lâm nghiệp: "Influence of the form of nitrogen nutrition reductase activity in young black locus" doc

... with the advent of the N activity, indicates a relationship ase between both enzyme activities The low NR activity (!1 nmol N0 DW!h-!) of -mg2 nodulated plants could be greatly increased by nitrate ... enzyme activity (Fig 2) After 72 h of induction, the highest NR activity was found in the apical fully expanded leaf and corresponded with the highest nitrate content (Table I) When a new leaf expanded, ... Effect of nitrate of leaf NR activity of nodulafed plants Administration of mM NaN0 to 11 mo old nodulated plants did not increase leaf NR activity, whereas the 10 mM NaN0 dose...

Ngày tải lên: 09/08/2014, 04:20

4 202 0

Báo cáo y học: " Reconstitution of the adult B cell repertoire after treatment with rituximab" pptx

... and the nonquantitative nature of the bulk PCR approach employed by the investigators Furthermore, for most of the study total B cells were studied without differentiating specific B cell subsets ... generated B cells The growing availability of patients treated with B cell depletion should allow investigators to understand the determinants that underlie B cell reconstitution in different autoimmune ... CD27, it is tempting to postulate that upon profound B cell depletion there could be a re-enactment of early B cell ontogeny and that the cells described in the report by Rouzière and coworkers...

Ngày tải lên: 09/08/2014, 07:20

2 231 0

Báo cáo y học: "Baicalein inhibits IL-1β- and TNF-α-induced inflammatory cytokine production from human mast cells via regulation of the NF-κB pathway" pot

... differential effect of BAI on activated mast cells warrants further studies The expression of various inflammatory cytokines is regulated by transcription factors The activation of the NF- B transcription ... HMC-1 (Fig 5B) Role of IkBα proteins in the inhibitory effect of BAI on inflammatory cytokine production from IL-1β- and TNF-αactivated mast cells The activation of NF- B requires phosphorylation ... ,/ Statistical analysis of the data All experiments were done in triplicate The data were analyzed by Student's two-tailed t- test using Statistica software (StatSoft, Inc., Tulsa, OK) All data...

Ngày tải lên: 13/08/2014, 13:22

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geography of the world b

... streets, carrying a gold casket containing the sacred tooth of the Buddha For the rest of the year, the tooth is kept in the Temple of the Tooth It is said that the tooth was snatched from the Buddha’s ... live in the provinces of Punjab and Sind, on the fertile floodplains of the rivers The flat, fertile plains of the Punjab form the farming heartland of Pakistan The rich soil is watered by the Indus ... The temple of Borobudur is the world’s largest Buddhist monument BOROBUDUR Situated in the heart of Java is one of the architectural wonders of the world The vast Buddhist temple of Borobudur...

Ngày tải lên: 13/11/2014, 07:14

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