nucleic acids and the code of life

biochemistry for dummies (wiley, 2008)

Ngày tải lên : 26/03/2014, 22:51

... Prostaglandins, Thromboxanes, and Leukotrienes: Mopping Up 140 Chapter 9: Nucleic Acids and the Code of Life 143 Nucleotides: The Guts of DNA and RNA 143 Reservoir of genetic info: ... just sweet! Then we jump over to lipids and steroids Next are nucleic acids and the genetic code (Da Vinci, eat your heart out!) of life with DNA and RNA Then it’s on to vitamins (they are involved ... such, there must be an associated equilibrium constant (K) The equilibrium constant in the preceding equation is Kw The value of Kw is the product of the concentrations of the hydrogen ion and the...

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Báo cáo khoa học: Human telomeric G-quadruplex: structures of DNA and RNA sequences ppt

Ngày tải lên : 06/03/2014, 09:22

... G-tracts of one strand and only the 3¢-end G-tract of the other strand [30] (Fig 3D) The core of this structure, called the (3 + 1) core, has three strands oriented in one direction and one strand ... the stacking interface is formed between the 3¢-end of each block; and (c) 5¢-to-3¢, in which the stacking interface is formed between the 5¢-end of one block and the 3¢-end of the other In the ... one strand and 5¢-syn-syn-anti-3¢ and 5¢-syn-anti-anti-3¢ for the other strand of the dimer; glycosidic conformations of guanines around G-tetrads are syn•anti•syn•anti; there are two wide and two...

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Báo cáo sinh học: "Hierarchical folding of multiple sequence alignments for the prediction of structures and RNA-RNA interactions" doc

Ngày tải lên : 12/08/2014, 17:20

... description of the scoring of single-stranded positions However, they are scored the same way as in the original PETfold approach; for more details, see [25] The PETfold score is the sum of the evolutionary ... structures s and s of s1 and s2, respectively Because we use the numbering convention of RNAcop p fold, the union s ∪ s of the two partial structures p p s and s is the partial structure of s1&s2 ... Probability distributions of the Pfold model and Implications of the independence property Combined probability distributions of the Pfold model and theimplications of the independence property...

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Báo cáo y học: "Comparative modeling of DNA and RNA polymerases from Moniliophthora perniciosa mitochondrial plasmid" doc

Ngày tải lên : 13/08/2014, 16:20

... (Asp457 and Asp695) and Fingers (Tyr537 and Lys529) (Figure 4) In comparison to the template structure, these amino acids perform an alignment in the region of the active site, with the amino acids ... Asp537 and Asp812 (Palm), and Tyr639 and Lys631 (Fingers) of the template The presence of these residues (Asp, Tyr, and Lys) in this region is a sign in this group of polymerases that they are ... observed in the whole structure As well as other polymerases from that family, this polymerase showed the three standard domains of the group: Palm, Fingers, and Thumb The active site of the DNA...

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Tài liệu Báo cáo khoa học: Regulation of DNA fragmentation: the role of caspases and phosphorylation doc

Ngày tải lên : 14/02/2014, 22:20

... They induce the permeabilization of the mitochondrial membrane with the release of cytochrome c and the formation of the apoptosome [38] The major pro-apoptotic protein Bax exists mainly in the ... signal on and off Caspase activation is under the direct control of kinases and phosphatases, and the indirect control of phosphorylation through the regulation of other apoptotic proteins Furthermore, ... Inhibition of PP1 by OA enhances the phosphorylation of p53 at Ser15 and Ser37, decreases the expression of bcl-2 and increases the expression of bax in human laryngeal epithelial cells and human...

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Tài liệu Báo cáo khoa học: Identiﬁcation of Ewing’s sarcoma protein as a G-quadruplex DNA- and RNA-binding protein ppt

Ngày tải lên : 15/02/2014, 01:20

... well as single- and doublestranded DNA [18–20] In the case of EWS, the C-terminal amino acids that constitute RGG specifically bind to poly G and poly U RNA in vitro [8] On the other hand, Hume et ... DNA and RNA in vitro We also determined that the specificity of G-quadruplex recognition depends on the guanidinium group of the Arg in the RGG domain in the C-terminal of EWS Identification of ... inhibited the high-affinity Htelo binding of RGG3 and RBD The ability of RGG3 and RBD to repress transcription activation by EAD raised the possibility that RGG3 and RBD block the interaction between the...

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Tài liệu Báo cáo Y học: Temperature dependence of thermodynamic properties for DNA/DNA and RNA/DNA duplex formation pdf

Ngày tải lên : 22/02/2014, 07:20

... and mss are the intercepts and slopes of the lower and upper baselines of the melting curves, respectively; T is the temperature of interest in Kelvin, a is the molar fraction of strands in the ... change is the net sum of the positive contribution from the exposure of nonpolar groups and the negative contribution from the exposure of polar groups [49,51] When the structured double strand is ... 2ị where A(T) is the absorbance of a solution at the temperature of interest Ahelix(T) and Acoil(T) are dened as the sloped linear baselines of the melting curves in the helix and coil states,...

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Báo cáo Y học: Thermodynamics and kinetics of the cleavage of DNA catalyzed by bleomycin A5 A microcalorimetric study pdf

Ngày tải lên : 24/03/2014, 04:21

... Eqns (19) and (20), respectively m Thermodynamics of the binding of ADM and (1,10-phenanthroline)-copper to DNA Fig A comparison of the UV and visible spectrum of BLM-A5 after the cleavage of calf ... with the ﬁrst-order self-inactivation of the enzyme The values of Km, k2 and k1 were obtained from the equations by substituting in at least three sets of experimental data (x and t) and using the ... using the MATHSOFT MATHCAD software (version 2001) The value of s, the lifetime of self-inactivation, was calculated using the rate constant k1 A thermodynamic model for the binding of small molecules...

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Báo cáo khoa học: "Comparison of RBE values of high- LET a-particles for the induction of DNA-DSBs, chromosome aberrations and cell reproductive death" potx

Ngày tải lên : 09/08/2014, 09:20

... distance of 50 mm underneath the dishes and the particles passed through 50 mm of helium and the thin mylar bottom of the culture dishes before entering the cells through the bottom of the dishes ... fraction of the DSB (about 1% of DSB induced by g-rays and about 10% by a-particles) are causing cell death On the other hand, the values of a for formation of chromosome fragments and colour ... characteristics of the minority of DSB which yield biological damage are still subject of studies [22] Furthermore the strong dependence of frequencies of chromosome aberrations and cell inactivation on the...

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báo cáo khoa học: "Adenovirus-mediated delivery of bFGF small interfering RNA reduces STAT3 phosphorylation and induces the depolarization of mitochondria and apoptosis in glioma cells U251" pdf

Ngày tải lên : 10/08/2014, 10:21

... Interestingly, the expression of pSTAT3 Ser727 moderately decreased at 24 and 48 h and then restored to the control level at 72 h Furthermore, compared with the levels under the control and Ad-GFP ... pathway to further our current understanding of the underlying mechanisms of AdbFGF-siRNA-induced growth suppression and apoptosis of glioma cells Materials and methods 2.1 Cell Culture and Adenovirus ... Caspase3, and Bax As shown in Figure 4B, the level of Cytochrome C, Caspase3, and Bax was markedly higher in the Ad-bFGF-siRNA group than in the control and Ad-GFP groups, confirming the activation of...

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Báo cáo y học: "Analysis of the contribution of cellular and viral RNA to the packaging of APOBEC3G into HIV-1 virions" docx

Ngày tải lên : 13/08/2014, 05:22

... conceived the study, was leading the execution of the experiments, and participated in the writing of the manuscript K.S coordinated and supervised the study and was involved in the writing of the ... amounts of PCR products indicative of the presence of similar levels of these cellular RNAs in all three particle preparations These results suggest that packaging of these RNAs was independent of the ... [28,32] Furthermore, the efficiency of encapsidation of most of the cellular RNAs seems to reflect their cellular abundance [28,32,33] One of the first cellular RNAs identified in murine and avian...

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Báo cáo sinh học: " The effects of DNA formulation and administration route on cancer therapeutic efficacy with xenogenic EGFR DNA vaccine in a lung cancer animal model" pps

Ngày tải lên : 14/08/2014, 19:22

... together, the number of functional CD4+, CD8+ T cell and level of CTL activity in spleen and inguinal lymph node were differentially affected by the routes of administration and formulation of ... Vaccines and Therapy 2009, 7:2 http://www.gvt-journal.com/content/7/1/2 Figure The presence and the therapeutic efficacy of anti-EGFR antibody in serum from the DNA vaccine group of mice The presence ... the design of the experiments and prepared the draft manuscript, MCY, CFT, CCW, PSL and HJY performed the experiments; CML provided advice on the design of the study and commented on the manuscript;...

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THE INFLUENCE OF THE KU80 CARBOXY-TERMINUS ON ACTIVATION OF THE DNA-DEPENDENT PROTEIN KINASE AND DNA REPAIR IS DEPENDENT ON THE STRUCTURE OF DNA COFACTORS Derek S.

Ngày tải lên : 24/08/2014, 09:33

... in which the initial radical induced on the DNA produces a single strand break The radical is then transferred to the other strand causing the second break7 Of these two possibilities the latter ... in which the initial radical induced on the DNA produces a single strand break The radical is then transferred to the other strand causing the second break7 Of these two possibilities the latter ... that the polypeptide chain has its amino terminus on one side of the gap, circumnavigates the ring, and then reverses direction to the other side of the gap44 These authors predict that these...

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The roles of DNA(cytosine 5) methyltransferase1 in carcinogenesis related to cellular factors, virus and chemicals

Ngày tải lên : 16/09/2015, 15:55

... that they are involved in the longevity of Drosophila The intactness of the gene was required for the maintenance of the normal life span and over-expression resulted in prolonging the life span ... involved in the maintenance of the methylation pattern during DNA replication where, the methylation of the parental strand is faithfully copied onto the daughter strand Two other families of enzymes ... genes (L1 and L2) The upstream regulatory region (URR) or long control region (LCR) is located between the L1 and E6 ORFs The size and location of the genes as well as the functions of the proteins...

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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System

Ngày tải lên : 12/09/2012, 15:05

... access to the array and, if other clients had already referenced the data of the array, the physical memory cache of the array would be directly accessible to the client with no further message ... 5.5 Fault Handling The Mach page fault handler is the hub of the Mach virtual memory system The kernel fault handler is called when the hardware tries to reference a page for which there no valid ... vm_allocate_with_pager) or receipt of data in an IPC message In the first case, the source of the data is considered trusted (either the default pager, or a data manager known to the requestor) Use of the data received...

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The graphs below show the numbers of male and female workers in 1975 and 1995 in several employment sectors of the republic of Freedonia

Ngày tải lên : 04/10/2012, 10:02

... worked in the communications sector Twenty years later, though the number of men remained unchanged, the number of women rose to 550 000 A similar situation was seen in the wholesale and retail ... 450 000 by 1995 The number of men grew only marginally from 425 000 to 480 000 over the same period In defence, the number of men declined from 225 000 to 200 000, while the number of women rose ... answer: The two decades between 1975 and 1995 brought significant changes in the representation of women in Freedonia's work force, according to the graphs In 1975, for example, some 300 000 men and...

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Báo cáo y học: "Bench-to-bedside review: The MET syndrome – the challenges of researching and adopting medical emergency teams"

Ngày tải lên : 25/10/2012, 10:35

... evidence is the lack of rigour and generalisability Furthermore, the magnitude of the effect of the MET may be influenced by institution-specific administrative features and policies Buist and coworkers ... of centres Before -and- after studies lack rigour and generalisability they are In the words of the slogan of the American Society of Critical Care Medicine, we need to deliver the ‘right care, ... lack of statistical power due to the large variance in outcome incidence and wide standard deviation and the lower-than-expected incidence of the outcome measures under investigation Given the...

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Techniques for developing content reading skills for the third year students at the university of odonto and stomatology

Ngày tải lên : 07/11/2012, 14:50

... ideas…related to the topic of the text drew the attention of 40% of the teachers and 12.5% of the students This shows that words and structures are of importance in avoiding the students’ misunderstanding ... in their mid-term and final exams for scholarship one hand and not re-taking the exams on the other hand Furthermore, the University of Odonto and Stomatology has been now co-operating with other ... true to the content field which forces learners to train themselves more outside the classroom to update them and meet the demand of their work Being aware of the great importance of ESP in the teaching...

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An investigation into the reality of teaching and learning speaking skills to the 2nd year non-major english students at pre-intermediate level of proficiency at hanoi university of industry

Ngày tải lên : 07/11/2012, 14:50

... level of Proficiency at Hanoi University of Industry” is submitted in partial fulfillment of the requirements for the degree of Master of Arts is the result of my own work, except where otherwise ... improve the situation of teaching and learning speaking English to the year non-major English students would be made The thesis consists of three main parts: the introduction, the development, and the ... the conclusion The introduction - gives rationale for the study and sets up the aims, scopes and methods of the study The develoment - which is considered as the main part of the study, includes...

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The Art of Writing and Speaking the English Language

Ngày tải lên : 07/11/2012, 15:59

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