o2 the terminal electron acceptor
Báo cáo Y học: Exploring the primary electron acceptor (QA)-site of the bacterial reaction center from Rhodobacter sphaeroides Binding mode of vitamin K derivatives pptx
Ngày tải lên :
31/03/2014, 21:21
... QA to the secondary ubiquinone QB and the primary donor D According to the Marcus theory the rate of electron transfer between two molecules depends on three factors: the overlap of the electron ... resulting from the response of the protein to the QA-reduction Hence, these absorption bands are indicative for the interaction between the quinone and the protein binding pocket Therefore, structural ... otherwise, only the best placement (Ôplacement 1Õ), displaying the smallest value of the binding free energy, was considered for further analysis The binding site of the primary quinone in the...
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Báo cáo lâm nghiệp: "Frost damage on the terminal shoot as a risk factor of fork incidence on common beech (Fagus sylvatica L.)" docx
Ngày tải lên :
07/08/2014, 16:20
... to measure the characteristics of the late frost in the plot, or in the experimental site, or even at the individual tree scale On the other hand, we were able to describe accurately the damage ... definition proposed in [25], these forks were only recorded years after the frost, i.e at the end of 1997 The presence of these forks, however many per shoot, determined whether the plant was forked ... on the other hand from data of plot P1 (Pr > Chisq = 0.004) The logistic model showed that the differences of effect were significant neither between the “red spots” and “undamaged” levels on the...
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Báo cáo y học: "Acute small bowel obstruction as a result of a Meckel''''s diverticulum encircling the terminal ileum: A case report" pdf
Ngày tải lên :
11/08/2014, 10:23
... at the base using a linear stapler (TLC55, Ethicon) to release the obstruction Care was taken not to compromise the lumen of the ileum The tip of the diverticulum was then dissected off the terminal ... with dilatation of the small bowel proximal and collapse of the large bowel distal to the stricture (Fig 2) However the aetiology of the stricture, and therefore the cause of the small bowel obstruction, ... and the anastomosis over sewn with continuous 3/ sutures The small bowel was then decompressed and the content milked gently into the stomach before being aspirated via the nasogastric tube The...
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lectron energy spectrometers for the scanning electron microscope
Ngày tải lên :
10/09/2015, 15:53
... Fig There are two main differences between the SEM and the SAM that form the answer to the above questions The first difference is in the way they detect scattered electrons from the specimen The ... naturally raises the question of whether the electron energy analyzers used for the SAM can be incorporated into the SEM? The two most commonly used electron energy analyzers for the SAM are the Cylindrical ... down the electron optical column as shown in Fig 2.2 The primary electron beam from the column is bent 90o by the beam separator and focused on to the specimen by the objective lens system The...
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Spectrometer attachments for the scanning electron microscope
Ngày tải lên :
11/09/2015, 09:07
... display the image in real-time on a computer monitor The total magnification of the image can be determined by the image size of the screen and size of the scanned area of the electron beam on the ... the incident electron beam energy is high enough and the specimen is sufficiently thin, most of the incident electrons travel through the specimen Electrons that interact within the bulk of the ... outgoing electron rays through the spectrometer are not focused at the energy filtering slit position, they will be blocked by the slit When the deflected electrons pass through the slit, they will...
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33221 the terminal movie
Ngày tải lên :
28/08/2016, 14:38
... with the cleaner for Tuesday He makes the chairs into a bed http://efllecturer.blogspot.com/2011/06 /terminal. html The Terminal answers - Put the sentences in the correct order a What's the purpose ... these sentences into the correct order a b c d e f g h i He tries to make a phone call He pulls the plugs on the lights and music He tries to sleep He sees the news He breaks the girl's bag He shouts ... And our State Department has revoked the visa that was going to allow you to enter the US While you were in the air there was a military coup in your country… The Republic of Krakozhia is under...
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11030 the terminal
Ngày tải lên :
29/08/2016, 20:01
... going to need the also Navorski: Ok Thank you Guard: No, no That Passport Post-watching Suggested extra activities based on the movie: - Students role play a dialog at the check-in counter ... Yellow , please Take me to Ramada Inn, 161 Lexington Guard: Staying at the Ramada Inn? Navorski: the change Guard: Do you anyone in New York? Navorski: Yes Guard: ... role play a dialog at the check-in counter in an airport - Students prepare a poster with objects they consider important to take in an international trip, sticking or drawing pictures and writing...
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DSpace at VNU: Calculation of Characteristics of the Single Electron Transistor
Ngày tải lên :
16/12/2017, 15:32
... the energy potential, m is the mass of the electron and is the Flank constant In the region I (Source), V(x) = In the region II (barrier 1), V(x) = V1 In the region III (Gate), V(x) = Vm In the ... for the Al0.3Ga0.7As/GaAs [7,8] and V1 = V2 = 0.1 eV for the Al0.1Ga0.9As/GaAs [8,9] The widths of the energy barriers are the thickness of the AlGaAs layer and that is 70 nm The width of the ... τ on the energy E The peaks of the transmission coefficient are located in the energy levels of quantum dots The peaks in the higher energy levels are higher and wider than themselves in the lower...
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Báo cáo y học: "The Diels-Alder-Reaction with inverse-Electron-Demand, a very efficient versatile Click-Reaction Concept for proper Ligation of variable molecular Partners"
Ngày tải lên :
26/10/2012, 09:39
... contrast to the classical DAR During the reaction initially the dissociation of the nitrogen from the primary adduct leads to the 4,5-dihydropyridazine product As generally known, the impetus of the ... amides provide the ability for the synthesis of many functionalized derivatives They can be obtained via the dihydrotetrazine-amides followed by oxidation Nevertheless the use of these tetrazine ... reaction times in the range of minutes for the DARinv, the reactivity of the dienophile is decisive for the rapid reaction process besides the reactivity of the tetrazines as reactants The allyl-group,...
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Tài liệu Báo cáo khoa học: The ubiquitin ligase Itch mediates the antiapoptotic activity of epidermal growth factor by promoting the ubiquitylation and degradation of the truncated C-terminal portion of Bid ppt
Ngày tải lên :
16/02/2014, 09:20
... through the mitochondrial pathway The key event in the mitochondrial pathway is the release of proapoptotic factors from the mitochondrial intermembrane space into the cytosol, resulting in the downstream ... the C -terminal fragment of Bid The ubiquitin ligases responsible for the ubiquitylation are in most cases not known [44] Here, we have identified Itch as the ubiquitin ligase responsible for the ... [24] and reports from others [25,35] suggest that the increased activity of Itch after treatment with EGF is at least partly due to JNK activation If this is the case, then the protective effect...
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Tài liệu Báo cáo khoa học: Myristoylation of the dual-specificity phosphatase c-JUN N-terminal kinase (JNK) stimulatory phosphatase 1 is necessary for its activation of JNK signaling and apoptosis pdf
Ngày tải lên :
16/02/2014, 14:20
... attached to the culture dish Furthermore, cells expressing the JSP1-G2A mutant remained attached to the dish despite the fact that the mutant protein was expressed at similar levels to those of the wild-type ... (molecular mass 64 Da) from the oxidized Met residue were observed, which confirmed the interpretation of the MS ⁄ MS spectrum [26] The N -terminal peptide eluted late in the RP-HPLC gradient during ... dephosphorylate the Tyr and Thr residues in the activation loop of MAPKs and thereby attenuate signaling [17,19] In addition, there is a group of low molecular mass DSPs that lack the regulatory N-terminal...
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Tài liệu Báo cáo khoa học: Structural and mechanistic aspects of flavoproteins: electron transfer through the nitric oxide synthase flavoprotein domain pdf
Ngày tải lên :
18/02/2014, 11:20
... in NOS, the second electron is provided to the hemedioxy species by a bound H4B cofactor rather than by the flavoprotein domain [16] The H4B radical is then reduced within the enzyme by the flavoprotein ... position for maximum electron flux through the enzyme On either side of this optimum, the electron flux drops off because either the formation rate (k2) or dissociation rate (k1) of the FNR–FMN subdomain ... address these issues [64] Electron flux and equilibrium A In general, electron flux through a protein depends on the rates of electron input and output, with either process being rate limiting In the...
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Tài liệu Báo cáo khoa học: Verprolin function in endocytosis and actin organization Roles of the Las17p (yeast WASP)-binding domain and a novel C-terminal actin-binding domain doc
Ngày tải lên :
18/02/2014, 16:20
... Interestingly, however, the 3D structure of the equivalent mammalian N-WASP–WIP complex reveals a major contact outside the equivalent C -terminal 36 residues of WIP [33] To test whether the LBD is essential ... Vrp1p [23] We therefore asked whether using the same technique to anchor C-Vrp1p364)760 (CABS) to membranes would restore function in the absence of the LBD C-Vrp1p364)760 was tagged at the C-terminus ... C-Vrp1p760)817 (which contains the LBD only) could not (data not shown) Because the LBD is rather short, comprising 57 residues, we then fused the DNA encoding the LBD inframe to sequences encoding...
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Tài liệu Báo cáo khoa học: Mitochondrial targeting of intact CYP2B1 and CYP2E1 and N-terminal truncated CYP1A1 proteins in Saccharomyces cerevisiae ) role of protein kinase A in the mitochondrial targeting of CYP2E1 pdf
Ngày tải lên :
18/02/2014, 16:20
... targeting to the microsomes requires the cotranslational insertion of the newly synthesized protein into the microsomal membrane, where the N -terminal hydrophobic signal sequence of the protein ... in the association of the translational complex with the microsomal membrane [13,14] Thus, the N -terminal hydrophobic sequences of CYPs are important for their targeting to and retention in the ... to either the ER or the mitochondria, whereas the full-length was CYP1A1 targeted efficiently to the ER, suggesting that an open N -terminal signal domain is critical for protein targeting to the...
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Tài liệu Báo cáo khoa học: N-terminal extension of the yeast IA3 aspartic proteinase inhibitor relaxes the strict intrinsic selectivity ppt
Ngày tải lên :
19/02/2014, 00:20
... intrinsic to the N -terminal segment A B The effect of extending the N -terminal segment Since the above-described adaptations in the C -terminal segment were without major influence, the effect of ... one of these inhibitor pairs (14 ⁄ 14T) are depicted in Fig The mass peak observed in the spectrum for the parent inhibitor 14 (Fig 5A) corresponds to the theoretical value for the N-terminally ... cyclised Q in place of the Met1 residue at the N-terminus and (2) the C -terminal LE(H)6 tag It would thus appear that appending the His-tag at the C-terminus of the authentic S castellii polypeptide...
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Tài liệu Báo cáo khoa học: The most C-terminal tri-glycine segment within the polyglycine stretch of the pea Toc75 transit peptide plays a critical role for targeting the protein to the chloroplast outer envelope membrane ppt
Ngày tải lên :
19/02/2014, 07:20
... considered the possibility that the difference between AAG and the other two mutants might be due to kinetics of the import; i.e., AAG precursor might be imported into the stroma more slowly than other ... mutation targeted the protein to multiple locations: the stroma, the internal membranes where trypsin cannot reach (i.e., either the inner envelope membrane or thylakoids), and the outer envelope ... membrane In the second scenario, the glycine-rich region prevents the Toc75 precursor from associating with one or more proteins that facilitate the translocation of the preprotein across the inner...
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Tài liệu Báo cáo khóa học: Quantitative analysis, using MALDI-TOF mass spectrometry, of the N-terminal hydrolysis and cyclization reactions of the activation 2 process of onconase pdf
Ngày tải lên :
19/02/2014, 12:20
... simultaneously interacts with the main phosphate of the substrate [32] The closer positioning of the N-terminus to the main protein body is essential for the activity and, together with the 87–104 disulfide ... at position 23) The results represent the average of three experiments 10;11 to the global stability of ONC It can be seen that the N -terminal Met diminished the Tm by °C and the DGU by 3.5 kJỈmol)1, ... proteases [20] The closer positioning of the N-terminus to the main protein body is essential for these properties as well as for its activity Together with a disulfide bridge between the C-terminal...
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Tài liệu Báo cáo khóa học: The C-terminal domain of Escherichia coli Hfq increases the stability of the hexamer ppt
Ngày tải lên :
19/02/2014, 12:20
... protein Based on the analysis of the transition region, the conformational stability of the proteins can be calculated [29]: the free energy when Ó FEBS 2004 The role of the C -terminal domain ... On the basis of these observations, we propose that the C -terminal domain (84–102) protects the interface between monomers and thus could contribute to the thermodynamic stabilization of the ... reasons: (a) the C -terminal region of E coli Hfq is flexible in the molecular model [16], (b) that of S aureus Hfq is disordered in the crystal structure [19] and (c) the FTIR spectrum of the C-terminal...
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Tài liệu Báo cáo khoa học: The role of N-glycosylation in the stability, trafficking and GABA-uptake of GABA-transporter 1 Terminal N-glycans facilitate efficient GABA-uptake activity of the GABA transporter pptx
Ngày tải lên :
19/02/2014, 17:20
... are important for the GABA transport activity 1-Deoxymannojirimycin inhibits the GABA-uptake of GAT1 In order to gain further insight into the role of the terminal structures of the N-glycans of ... N-glycosylation site, deficiency of terminal trimming of their N-oligosaccharides strongly affected their GABAuptake activity These indicate that the terminal structure of the oligosaccharides facilitate ... changes in the interaction of external Na+ with the transport protein as measured by voltage clamping [7] However, the question remained as to whether the reduction in function of the mutants...
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Tài liệu Báo cáo khoa học: Novel aggregate formation of a frame-shift mutant protein of tissue-nonspecific alkaline phosphatase is ascribed to three cysteine residues in the C-terminal extension pdf
Ngày tải lên :
19/02/2014, 17:20
... The aggregation may lower the probability of TNSALP (1559delT) being segregated into COP II vesicles at the exit site from ER and therefore the mutant protein remains longer in the lumen of the ... to degradation in the proteasome To this end we transfected the cells with the plasmid encoding TNSALP (1559delT) with or without the plasmid encoding ubiquitin bearing the N -terminal influenza ... dithiothreitol in the culture medium did not enhance the secretion of the mutant, but rather inhibited it (results not shown) In good agreement with the SDS ⁄ PAGE, sucrose gradient centrifugation further...
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