Báo cáo khoa học: "A PROPERTY-SHARING CONSTRAINT IN CENTERING" potx
Tài liệu Báo cáo khoa học: A point mutation in the ATP synthase of Rhodobacter capsulatus results in differential contributions of DpH and Du in driving the ATP synthesis reaction pptx
... subunit, affecting its trypsin digestion and cross-linkingpattern. In addition, a change in the e conformation waspreviously seen, a gain by trypsin digestion and cross-linking,following dicyclohexylcarbodiimide ... described in [ 36] by rapidly injecting an acidifiedchromatophores suspension into a l uminometer cuvettecontaining a basic solution and monitoring the ATPconcentration c ontinuously with luciferine/luciferase ... solution contained 20 mMTricineinstead of succinic acid. Assuming complete equilibrationof the K+during the 1 h preincubation (see above), thevalue of t he K+/valinomycin diffusion potential...
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Tài liệu Báo cáo khoa học: "A POOAFR MODIFICATIONS IN TEFRAIMOGSRP SLOHOML SFPG" potx
... distinguishing Immediate Dominance (IO) and Linear Precedence (LP) rules in GPSG (cf GKPS, pp. 44-50). A context free rule binds information of two kinds in a single statement. By separating ... tutes a nonmonotonic device in the formalism, since final representations must not contain occur- rences of ANY. In our terms, final representations must not contain negation or disjunction, ... theoretical linguistic grounds, then it can be re- introduced in a more principled fashion allowing default statements at all levels of linguistic description where it is useful. The position of Linear...
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Báo cáo khoa học: A single mismatch in the DNA induces enhanced aggregation of MutS Hydrodynamic analyses of the protein-DNA complexes pot
... the squelching actionof DNA following protein binding. However, interest-ingly, the protein regains a unique mode of aggrega-tion even when bound to DNA following anenhancement in the concentration ... concentrationdependent in a range far above the micromolar bind-ing affinity reported for ATP binding with MutS[29,30], possibly reflecting the role of additional puta-tive low affinity ATP binding sites in this ... ATP induced aggre-gation of protein, suggesting the possibility that thebinding of protein to DNA somehow interferes withthe polymerization of free protein (Fig. 3A,B). How-ever, most intriguingly,...
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Báo cáo khoa học: A L225A substitution in the human tumour suppressor HIC1 abolishes its interaction with the corepressor CtBP docx
... in the binding of C-terminal binding protein-interacting domains despite great variability in their amino acid sequences.Finally, this L225A point mutation could also provide useful knock -in ... HIC1–CtBP interaction in tumorigenesisand in development.AbbreviationsAD, activation domain; CID, CtBP-interacting domain; CR, central region; CtBP, C-terminal binding protein; DBD, DNA-binding ... conservation of this residue in all C-terminal binding pro-tein-interacting motifs, mutation of the central leucine residue (leucine 225 in HIC1) abolishes the interaction between HIC1 and CtBP1...
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Báo cáo khoa học: "A Preliminary Model of Centering in Dialog*" pptx
... approximations to the original theory as a starting point. These results will be a baseline for evaluating more sophisticated models in the future. 2 The Centering model The centering framework (Grosz ... utter- ances (containing no discourse entities) are skipped in determining C f,.,_l. Empty utterances include acknowledgements and utterances like "hard to leave behind" with no ... Centering Rule 1, so centering the- ory's assumptions linking local focus to pronouns appear to hold in dialog. It is interesting to note that Model 1, which includes dialog participants...
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Báo cáo khoa học: A structured RNA in hepatitis B virus post-transcriptional regulatory element represses alternative splicing in a sequence-independent and position-dependent manner pot
... exclusively, mostsplicing enhancers tend to bind SR proteins, a familyof proteins containing one or two RNA-bindingdomains and a signature RS domain rich in Arg ⁄ Serdipeptides, and splicing silencers ... ISSs. In thisstudy, we show that PRE-ISS effectively inhibitsexon 7 inclusion in the SMN1 splicing context, indicat-ing that PRE-ISS activates an inhibitory mechanismoutcompeting the exon 7 inclusion ... elements in the neighboring introns of SMNexon 7 repress exon inclusion in its SMN2, but notSMN1, splicing context [23,27,28], suggesting that theexon 7 inclusion mechanism in the SMN1 splicing...
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Báo cáo khoa học: A distinct sequence in the adenine nucleotide translocase from Artemia franciscana embryos is associated with insensitivity to bongkrekate and atypical effects of adenine nucleotides on Ca2+ uptake and sequestration pdf
... large increases in intracellularCa2+[3].Despite intense research on the mammalian PTPsince its characterization by Hunter and Haworth in 1979 [19–21], the identity of the proteins comprising ... 2011 FEBS 827line with the results obtained in [41]. Furthermore, asshown below, the same BKA inhibited Ca2+-inducedswelling in Xenopus liver mitochondria. From theresults shown in Fig. 3B,C, ... peptide alamethicin induced mitochondrialswelling, manifested as an abrupt decrease in lightscattering (Fig. 2A,B). However, in accordance withthe mammalian consensus, addition of ADP in the absence...
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Báo cáo khoa học: A single mutation in Escherichia coli ribonuclease II inactivates the enzyme without affecting RNA binding pot
... metal binding inhibitor (10 mmEDTA). In some cases, these metal ligands can be sub-stituted with a water molecule or by another acidicresidue in the vicinity, allowing the metal binding even in ... thetotal inactivation of the enzyme without affecting itsRNA binding capability. In addition, metal ions seemto be required for activity but not for substrate bind-ing, suggesting the involvement ... proteins. Samples werewithdrawn at the time-points indicated in the figure legendsand quenched in 3 volumes of formamide-containing dye.Reaction products were incubated at 90 °C for 5 min andanalyzed...
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Tài liệu Báo cáo khoa học: "ANALYSIS OF OONOUNCTIONS IN PAKSER" potx
... so,~ general constraints and interpretation tales may be expressed in a more compact form. WiL-hout entering into a discussion on semantic interpretation, we can give an exile using the rules ... set of states identifying the current position in the various transition networks, and a stack containing the data on the previous choice points. In logic gram- mars (Definite Clause Granmars ... that occur in coordination: ~he first conjunct can be "interrupted" in an incomplete status by the occurrence of the conjunction (this is not foresee- able at the beginning of the...
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Tài liệu Báo cáo khoa học: "A FORMAL REPRESERTATION OF PROPOSITIONS" potx
... for all p G Pm. (evening> has as intervals suitable subintervals of the days with q(p) = T, whereas the remaining parts of the days form phases with q(p) = F in (evening> . Analo- gously ... sense to explain here the details for the German tenses (of. Kunze 1987). The main points in describing tenses are these: At first one needs a dis- tinction between "tense meanings" ... formalism. This is inde- pendent of the fact, that in definitions and explanations U may appear for mak- ing clear what is meant. 7 • TEMPORAL ADVERBI ALS In section 2. we have outlined, how propositions...
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