structure and function of the cells of oral mucosa

Báo cáo y học: " The influence of oxygen tension on the structure and function of isolated liver sinusoidal endothelial cells" potx

Ngày tải lên : 13/08/2014, 13:20

... Background The liver sinusoids are lined by endothelial cells that have a unique structure and function essential for hepatic and systemic homeostasis Much of our understanding of the biology of the ... IM and BS conceived of the study IM carried out most of the experimental work and the writing AW and DGL participated in the determination of fenestration parameters, statistical analysis and ... Pertoft H, Eggertsen G, Sundstrom C: Functional and morphological characterization of cultures of Kupffer cells and liver endothelial cells prepared by means of density separation in Percoll, and...

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Tài liệu Báo cáo khoa học: Interaction between very-KIND Ras guanine exchange factor and microtubule-associated protein 2, and its role in dendrite growth – structure and function of the second kinase noncatalytic C-lobe domain docx

Ngày tải lên : 14/02/2014, 19:20

... structural and functional importance of the v-KIND and MAP2 interaction core modules in the regulation of dendrite growth and branching in hippocampal neurons and cerebellar granule cells Further studies ... mean length of dendrites These ﬁndings demonstrate the structural and functional importance of the Leu474 residue in the v-KIND–MAP2 interaction-mediated regulation of dendrite growth The interaction ... proteins of these subregions (Fig S1C) and 1654 Fig Of all members of the KIND family of proteins, only KIND2 binds to MAP2 Pull-down assay (PD) of the endogenous MAP2 from cerebellar lysates of P21...

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Tài liệu Body Size: The Structure and Function of Aquatic Ecosystems pptx

Ngày tải lên : 17/02/2014, 19:20

... empirical and theoretical work in biological oceanography and limnology that relates the structure, function and biotic composition of these systems to the body sizes of the organisms present and the ... size and temperature The metabolic theory of ecology uses these scaling relations to make and test THE METABOLIC THEORY OF ECOLOGY predictions about the effects of energy and materials on the ... survival The effects of changes in the magnitude of each of these traits on the others (e.g increased offspring size may be traded off against a reduction in offspring number), and their relationship...

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Tài liệu Báo cáo khoa học: a-Conotoxins as tools for the elucidation of structure and function of neuronal nicotinic acetylcholine receptor subtypes doc

Ngày tải lên : 19/02/2014, 12:20

... above, the determination of the subunit composition of the nAChRs involved has been hindered by the lack of selective ligands and imperfect correlations between the characteristics of native and ... native and heterologously expressed nAChRs The examples presented above clearly demonstrate the usefulness of a-conotoxins in the determination of the structure and function of native nAChRs, and ... domain of each subunit contributes to the formation of the hydrophilic pore ACh binding protein has structural and functional homology to the extracellular ligand binding domain of the nAChR, and...

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Tài liệu Báo cáo khoa học: Cold survival in freeze-intolerant insects The structure and function of b-helical antifreeze proteins pdf

Ngày tải lên : 19/02/2014, 16:20

... Further examination of the structure and sequence of sbwAFP and TmAFP reveal other similarities (Fig 8C) The panel shows the similarity of the TXT face again, and also reveals the presence of ... changes in the structure of the insect AFPs and to further characterize the TXT face of these proteins, the backbone dynamics of TmAFP and sbwAFP were measured at 30 °C and °C [38,40] Overall, the results ... shown as smoothed, Ca traces, with the structure and PDB code shown below each panel (A) Overlap of isoform 337 with the structure of the longer isoform CfAFP-501 using the main chain of residues...

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Báo cáo khoa học: NMR solution structure and function of the C-terminal domain of eukaryotic class 1 polypeptide chain release factor pdf

Ngày tải lên : 06/03/2014, 11:20

... for the determination of the structures of the conformers of the C-domain The dipolar couplings provided long-distance information on the global folding of both conformers The structure of the ... on one side of the b-sheet and two on the other side The rmsd of the heavy atoms (Ca, C, and N) of the protein core, when the NMR structures of both conformers are superimposed on the crystal ... between the signal of the HN of Gly337 in the open conformer and the signal of the water protons All of these observations indicate that the loop region of the open conformer has a higher degree of...

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Báo cáo khóa học: S-(2,3-Dichlorotriazinyl)glutathione A new afﬁnity label for probing the structure and function of glutathione transferases potx

Ngày tải lên : 16/03/2014, 16:20

... changes the conformation of the other subunit, thereby completely abolishing reaction of SDTG with the second subunit Analysis of the crystal structure of the enzyme in complex with the S-atrazine–GSH ... hydrophobic pocket of domain II of the other monomer, physically anchors the two subunits together at either end of the interface Explanation of the biphasic kinetics An average incorporation of 0.5 mol ... concentration of SDTG, k3 is the maximal rate of inactivation (min)1), and Kd is the apparent dissociation constant of the E:SDTG complex From the data shown in Fig 2, Kd values of 107.9 ± 2.1 lM and 224.5...

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Báo cáo khoa học: Structure and function of human a-lactalbumin made lethal to tumor cells (HAMLET)-type complexes pptx

Ngày tải lên : 29/03/2014, 21:20

... by tumor cells from 30 to h HAMLET is initially bound to the membrane of the cells and subsequently transported into the cells The cells maintain cellular integrity for a long period of time (180 ... radii of HAMLET (Rh = 26.9 A), which is intermediate of the hydrodynamic radii of the acidic molten globule state of a-lactalbumin ˚ (Rh = 20.9 A) and the theoretically extreme expansion state of ... ago and since then the HAMLET ﬁeld has widened in scope, acquiring new members and enriching our understanding of the basic principles underlying protein self-assembly and acquisition of new functionality...

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Báo cáo khoa học: Structure and function of the 3-carboxy-cis,cis-muconate lactonizing enzyme from the protocatechuate degradative pathway of Agrobacterium radiobacter S2 pdf

Ngày tải lên : 30/03/2014, 10:20

... in the mutant First, there is an increase in the negative charge in the active site and, second, breaking the salt bridge would alter the quaternary structure of the protein and therefore the ... in the ArCMLE1 structure The ﬁgure was created from the coordinates of the P212121 structure of ArCMLE1 and of PpCMLE (Protein Data Bank code 1RE5) (B) Water cavity below the active site The ... structure The variation in size and the observed amino acid modiﬁcation between PpCMLE and ArCMLE suggested important differences between the two enzymes Therefore, the crystal structure of the...

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structure and function of the arabic verb

Ngày tải lên : 03/04/2014, 12:48

... STRUCTURE AND FUNCTION OF THE ARABIC VERB Structure and Function of the Arabic Verb is a corpus-based study that unveils the morpho-syntax and the semantics of the Arabic verb ... very indicative, in our opinion, of the adequacy and the basis of this orientation, on the one hand, and the destiny of linguistics, on the other hand Of course, these implications might be too ... example, while the former incorporates all temporal and nontemporal uses of tenses in the analysis, the latter restricts its domain of study to the temporal ones, and either neglects the other uses,...

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Báo cáo khoa học: "Comparison between the structure and function of chloroplasts at different levels of willow canopy during a growing season" ppsx

Ngày tải lên : 09/08/2014, 03:24

... 2A) and between the ratio of the length of appressed to non-appressed thylakoid membranes and photon fluence rate (Fig 2B) This suggests that, in the canopy, acclimation of the thylakoid structure ... below 1.4 (Fig B) The leaves examined from levels and were physiologically young and the rates of C0 uptake recorded were from intermediate to high (Fig 2A) The ratio of the length of appressed to ... a lower rate of C0 uptake and an appressed/non-appressed membrane ratio of about In the present study, a tion was found between negative correla- N P and the ratio of the length of appressed...

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Báo cáo y học: "A comparative approach for the investigation of biological information processing: An examination of the structure and function of computer hard drives and DNA" doc

Ngày tải lên : 13/08/2014, 16:20

... comparative analysis between the architecture and function of the CHD and the structure and function of eukaryotic DNA, which we now define as the DNA hard drive (DHD) The computer ATA (Advanced ... correlations and expansions to these properties by structural and informational aspects of the of DHD, 3) examination of the current discrepancies between the CHD and the DHD, and how these discrepancies ... between the orthogonality of magnetic representation of data on the CHD to the orthogonal representation of information in the form of Qbits on the DHD The generation of various types of RNA from the...

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Tài liệu Báo cáo khoa học: Structure and function of active chromatin and DNase I hypersensitive sites pdf

Ngày tải lên : 14/02/2014, 18:20

... Hence, the maintenance of a condensed chromatin structure throughout the entire body of a gene may rely on the combined actions of Set3 at the 5¢ end and Set2 at the 3¢ end In yeast the cycle of ... cycle of transcription commences with the recruitment of transcription factors and co-factors bound at the promoter, which modify the local chromatin structure and enable the assembly of the pre-initiation ... bp intervals The lighter colour shades depict the bottom half of the nucleosome, and the exploded view below the octamer depicts the arrangement of the histones contacting 73 bp of DNA within...

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Tài liệu Báo cáo khoa học: Structure and function of plant aspartic proteinases pptx

Ngày tải lên : 19/02/2014, 12:20

... of the mature enzyme and by the ÔﬂapÕ The anchorage of the prosegment and of part of the N-terminus in the active site cleft is made by ionic interactions established between Lys11/Tyr13 of the ... other by three disulﬁde bridges A unique feature of the PSI is the swap of the N- and C-terminal portions of the saposin-like domain, where the C-terminal portion of one saposin is linked to the ... representation of the structure of the PSI domain of barley prophytepsin [25] (N-terminal domain, blue; C-terminal domain, red) (C) Model structure of the PSI domain of cardosin A based on the crystal structure...

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Báo cáo khoa học: Evolutionary changes to transthyretin: structure and function of a transthyretin-like ancestral protein doc

Ngày tải lên : 07/03/2014, 00:20

... regarding the identiﬁcation and distribution of TLP genes in nature, the structural and functional characterization of the TLP from various organisms, and the evolution of TLP and transthyretin The ... in b-strands A, G and H [17] Structural nature of the TLP and transthyretin active sites One of the striking features of transthyretin is the central channel of the protein into which the THs ... between the structures of TLP and transthyretins are found in the loop connecting b-strands B and C, which is highly exposed to the solvent in TLP [17] Interruptions in the b-strands A, G and H...

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Báo cáo khoa học: Structure and function of KH domains docx

Ngày tải lên : 07/03/2014, 05:20

... fold, in which the b1-strand and b2-strand are adjacent and parallel to each other, and the b¢-strand is adjacent and antiparallel to the b1-strand (Fig 1) The length and sequence of the variable ... them The RNA or DNA is bound in an extended, singlestranded conformation across one face of the KH domain, between the a1-helix and the a2-helix and GXXG on the ‘left’, and the b2-sheet and the ... 6A–C) The ﬁrst position of the core recognition motif sits on top of the a1-helix, and then the phosphate backbone of the next two nucleotides interacts with the a1-helix and the GXXG motif on the...

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Báo cáo khoa học: Structure and function of N-acetylglucosamine kinase Identiﬁcation of two active site cysteines pptx

Ngày tải lên : 08/03/2014, 10:20

... comparable to the hexokinase subunits [24] One lobe consists of the phosphate1 subdomain and the predicted a-helix I The other lobe consists of the phosphate2 and the adenosine subdomains, the predicted ... ﬁtted into the glucokinase model using RasMol software Figure shows the predicted structure of GlcNAc kinase with the localization of the ﬁve ATP-binding subdomains and the secondary structures ... concluded that C131 and C143 are directly involved in binding the two relevant functional groups of the kinase reaction, the c-phosphate of ATP and the hydroxyl group at C6 of GlcNAc, or they may even...

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Báo cáo khoa học: F1 – Structure and Function of Motor Proteins pot

Ngày tải lên : 23/03/2014, 15:20

... analysis of the force-induced conformations of these molecules and the determinants of their mechanical stability These studies provide some of the basic knowledge required to understand the mechanical ... complex of two rings, the C ring (FliM and FliN), located in the cytoplasm and the M ring (FliF and FliG) found in the membrane The transmembrane proteins MotA and MotB form the proton channel and ... C1400 and C1411 of the 3-minor domain of 16S rRNA, at positions located in the central loop of domain V, and in helices H42-H44 and H95 of 23S rRNA Speciﬁcally, in the central loop of domain V of...

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Structure and Function of Food Engineering docx

Ngày tải lên : 30/03/2014, 20:20

... profession all around the world, and this book represents what is arguably one of the best examples of the vastness, depth, and relevance of this profession It includes the work of the most prestigious ... area of the pack in m2, P is the permeability of the packaging in ml/m2/24h/atm and D is the shelf-life of the product in days The volume of oxygen to be absorbed is obtained by adding A and B ... the ascorbic acid and DHAA is the dehydroascorbic acid The total capacity of the O2 absorption is determined by the amount of ascorbic acid The complete reducing of mol of O2 requires moles of...

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