find the molecular formula of each compound given its empirical formula and molar mass

Tài liệu Báo cáo khoa học: Analysis of the molecular dynamics of medaka nuage proteins by ﬂuorescence correlation spectroscopy and ﬂuorescence recovery after photobleaching doc

Ngày tải lên : 18/02/2014, 16:20

... measure the mobility of the components in the PGCs The medaka embryo was peeled off the chorion, and the segment containing the part of PGCs was excised for observation by microscopy and FCS ... of OlvasGFP reveals the dynamic nature of the nuage Schematic diagram of the preparation of PGCs of medaka specimen (A) OlvasGFP was expressed in the medaka PGC at stage 24 and localized in the ... and FRAP analyses of OlvasGFP in the PGC FCS was used to measure the movement of OlvasGFP into the cytosol out of the nuage region of the PGC Representative correlation curves are shown (A) The...

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Tài liệu Báo cáo khoa học: Probing the molecular determinants of aniline dioxygenase substrate speciﬁcity by saturation mutagenesis docx

Ngày tải lên : 19/02/2014, 02:20

... A2 and pET A3A4A5 A1 and pET A3A4A5 A1A2 and pET A4A5 A1A2 and pET A3A4A5 On the basis of the results of this assay and mutational studies on the a subunits of other dioxygenases [18–26], the ... Hence, AtdA1 and AtdA3 are critical for the activity of the enzyme and provide good starting points for the study of the molecular determinants of the substrate specificity and activity of AtdA FEBS ... defining the substrate-binding pocket of the a subunit, AtdA3, and applied saturation mutagenesis to these residues to probe the molecular determinants of the activity and specificity of the enzyme...

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Tài liệu Báo cáo khoa học: The molecular surface of proteolytic enzymes has an important role in stability of the enzymatic activity in extraordinary environments pptx

Ngày tải lên : 21/02/2014, 03:20

... wild-type ALP I On the other hand, the Tm of D266N/Y269A-ALP I increased by only °C The denaturation temperature indicates the stability of the structure of the protein The difference of the increments ... on the surface On the other hand, anionic surfactants such as SDS and LAS bind to the surface regions of protein, and the surface regions would be unfolded and removed from the core structure of ... 60% of the original activity after h, and 30% after h The D266NALP I showed 40 and 20% of the original activity after h and h of incubation, respectively The stability of Y269A/A271T/Q272R- and...

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Báo cáo khoa học: Transthyretin and familial amyloidotic polyneuropathy Recent progress in understanding the molecular mechanism of neurodegeneration pdf

Ngày tải lên : 07/03/2014, 10:20

... location of amyloidogenic mutations and position of b-strands (A) The structure of the polypeptide backbone of the two chains (purple and blue) is shown along with the location of the N-terminus and ... within a tissue and that the distribution of TTR deposition reﬂects the presence of these endogenous factors In the case of the Ab protein of Alzheimer’s disease, a number of proteins and factors ... Dislocation of the C and D strands from their native edge region may result in the formation of a new interface involving A and B strands which is open for intermolecular interactions and consequently,...

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Báo cáo khoa học: Recent insights into cerebral cavernous malformations: the molecular genetics of CCM pot

Ngày tải lên : 15/03/2014, 10:20

... clinical care of the patients and were an important step towards the understanding of the mechanisms of this disorder This minireview summarizes the advances in CCM molecular genetics and the remaining ... loss, within affected cells, of the two alleles of a given CCM gene Loss of one of the alleles (ﬁrst hit) would be the result of a germline mutation and loss of the second allele (second hit) ... the identiﬁcation of CCM genes, a number of recent biochemical in vitro studies and in vivo CCM animal model studies have helped to unravel the functional roles of these proteins and are be the...

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Báo cáo khoa học: The molecular identity of the mitochondrial Ca2+ sequestration system potx

Ngày tải lên : 23/03/2014, 03:20

... amount of carbon and nitrogen, indicating the presence of protein(s) However, the protein was not isolated or identiﬁed because the focus of that study was identifying the molecular form of the ... including its sensitivity to a wide variety of chemically dissimilar compounds and even to the changes in the conformation of major IM proteins that are capable of modifying the surface charge of the ... [36], the ‘calciphorin’ isolated from liver and two ‘calciphorin’ isolates from calf heart were quite different in terms of their estimated molecular mass and other parameters To the best of our...

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EVOLUTION OF THE MOLECULAR BIOLOGY OF BRAIN TUMORS AND THE THERAPEUTIC IMPLICATIONS pdf

Ngày tải lên : 23/03/2014, 10:20

... Evolution of the Molecular Biology of Brain Tumors and the Therapeutic Implications high grade gliomas The structure and compounds of the ECM of the brain tissue have many specific differences from other ... mortality of the patient Moreover, the presence of the blood-brain barrier (BBB) limits the passage of a wide variety of anticancer agents The high incidence of recur‐ rence and poor prognosis of malignant ... infiltrate the enviro‐ ment and form it similar to the tumor tissue The process of the peritumoral invasion de‐ pends on the confrontation zone of the tumor cells and the non-neoplastic cells and ECM...

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Báo cáo khoa học: The molecular basis of heme oxygenase deﬁciency in the pcd1 mutant of pea pot

Ngày tải lên : 30/03/2014, 11:20

... characterized the contribution of these assay components by omitting them individually In the absence of ferredoxin the reaction rate decreased to 46.5% of the complete reaction while the absence of ascorbate ... indicate the direction of the major changes in absorption over the course of the measurements (C) Michaelis– Menten plot of the PsHO1 reaction for heme concentrations of 1, 2, 5, 10 and 20 lM ... three-dimensional model of the structure of pea HO was produced on the basis of the alignment of its amino acid sequence (minus the N-terminal transit sequence) with HOs from human, rat and the bacteria,...

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A gene expression database for the molecular pharmacology of cancer pptx

Ngày tải lên : 30/03/2014, 13:20

... end of the range and compound across the 60 cell lines, and each column represents the pattern of sensitivities of a par- 6.86% censored at the low-concentration end ticular cell line to the compounds ... row-wise mean and dividing by its rowwise standard deviation; took the inner product of the normalized A and the transpose of the normalized T matrix; and divided each element in the resulting ... ) Σ (Σ ) , and similarly for Vij The Pearson correlation of Uij and Vij gives a measure of the similarity in the distributions of drug activity and gene expression The formula is given by r=...

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THE MOLECULAR BASIS OF PLANT GENETIC DIVERSITY pdf

Ngày tải lên : 28/06/2014, 11:20

... etc Another impact of the Pleistocene glacials pertained to the connection between the Borneo and Thai-Malay Peninsula (the continent of Asia) The land bridge of the Sundaland accelerated the migration ... the rise and fall of the sea level severely altered the area of landmass of Southeast Asia, i.e., the emergence and Species Occurrence, Hybridization and Speciation in Postglacial East and South ... temperate and tropical Asia, particularly from the mainland of China Due to the variable topography and the short distance from the continent of Asia, the island forest species are diverse and similar...

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Báo cáo sinh học: "X-chromosome inactivation: the molecular basis of silencing" ppt

Ngày tải lên : 06/08/2014, 18:21

... Tsix The role of DNA methylation Figure Transcription of Xist and Tsix on the X chromosome The coding sequences of Xist and Tsix overlap on opposite strands of the X-chromosome DNA effect: the ... selected as the XA and the other as the XI in each cell In addition to having opposing roles in random choice, Xist and Tsix also negatively regulate each other in ES cells Xist and Tsix are ... initiated A second cause of non-random X-chromosome inactivation is the selective death of cells that inactivate the incorrect number of X chromosomes: because the fates of the X chromosomes are...