Molecular transport

Xem 1-20 trên 75 kết quả Molecular transport
  • In Bacteria and Archaea, high-affinity potassium uptake is mediated by the ATP-driven KdpFABC complex. On the basis of the biochemical properties of the ATP-hydrolyzing subunit KdpB, the transport complex is classified as type IA P-type ATPase.

    pdf13p cosis54 04-01-2013 24 3   Download

  • ATP-binding cassette (ABC) transporters form a large family of transmem-brane proteins that facilitate the transport of specific substrates across membranes in an ATP-dependent manner. Transported substrates include lipids, lipopolysaccharides, amino acids, peptides, proteins, inorganic ions, sugars and xenobiotics.

    pdf11p cosis54 04-01-2013 22 2   Download

  • Bacterial type IV secretion systems (T4SS) form supramolecular protein complexes that are capable of transporting DNA or protein substrates across the bacterial cell envelope and, in many cases, also across eukaryotic target cell membranes.

    pdf10p cosis54 05-01-2013 22 2   Download

  • Methanosarcina mazeiis a methanogenic archaeon that is able to thrive on various substrates and therefore contains a variety of redox-active proteins involved in both cytoplasmic and membrane-bound electron transport. The organism possesses a complex branched respiratory chain that has the abil-ity to utilize different electron donors.

    pdf11p cosis54 05-01-2013 24 2   Download

  • Auxin is transported by the influx carriers auxin resistant 1⁄like aux1 (AUX⁄LAX), and the efflux carriers pin-formed (PIN) and P-glycoprotein (PGP), which play a major role in polar auxin transport. Several auxin transporter genes have been characterized in dicotyledonous Arabidopsis, but most are unknown in monocotyledons, especially in sorghum.

    pdf16p mobifone23 21-01-2013 23 2   Download

  • cGMP secretion from cells can be mediated by ATP-binding cassette (ABC) transporters ABCC4, ABCC5, and ABCC11. Indirect evidence sug-gests that ABCC4 and ABCC5 contribute to cGMP transport by erythro-cytes. We have re-investigated the issue using erythrocytes from wild-type and transporter knockout mice.

    pdf12p inspiron33 23-03-2013 10 2   Download

  • The nature of cGMP transport in human erythrocytes, its relationship to glutathione conjugate transport, and pos-sible mediation by multidrug resistance-associated proteins (MRPs) have been investigated. MRP1, MRP4 and MRP5 are detected in immunoblotting studies with erythrocytes. MRP1and MRP5 are also detected in multidrug resistant COR-L23/R and MOR/R cells but at greatly reduced levels in the parent, drug sensitive COR-L23/P cells. MRP4 is detected in MOR/R but not COR-L23/R cells.

    pdf13p tumor12 20-04-2013 19 2   Download

  • In  Molecular simulation of nanoparticle diffusion at fluid interfaces molecular dynamics simulations are used to exam- ine the transport properties of a nanoparticle in both bulk solvent and at a liquid–liquid interface. Specifically it aims to address the effect of interfacial adsorption on the diffusion of nanoparticles (at low concentration).


    pdf5p hoquangbio 22-07-2015 15 2   Download

  • TheSaccharomyces cerevisiae vacuolar ATP-binding cassette transporter Ycf1p is involved in heavy metal detoxification by mediating the ATP-dependent transport of glutathione–metal conjugates to the vacuole. In the case of selenite toxicity, deletion of YCF1was shown to confer increased resistance, rather than sensitivity

    pdf10p cosis54 09-12-2012 13 1   Download

  • The 2-hydroxycarboxylate transporter (2HCT) family of secondary trans-porters belongs to a much larger structural class of secondary transporters termed ST3 which contains about 2000 transporters in 32 families. The transporters of the 2HCT family are among the best studied in the class. Here we detect weak sequence similarity between the N- and C-terminal halves of the proteins using a sensitive method which uses a database con-taining the N- and C-terminal halves of all the sequences in ST3 and involves blastsearches of each sequence in the database against the whole database. ...

    pdf11p awards 06-04-2013 11 1   Download

  • Glucose transporters (GLUTs) have been implicated in adaptive and survival responses to hypoxic stress in mam-mals. In fish, the expression and regulation ofGLUT in relation to hypoxia remains unexplored. Here we describe the identification ofa hypoxia-responsive glucose transpor-ter gene (gcGLUT) and the corresponding full-length cDNA from the grass carp. The gene spans 11 kb ofgenomic sequence and consists of12 exons and 11 introns, and an open reading frame (ORF) of 1599 bp encoding a poly-peptide of533 amino acids, with a predictedmolecularmass of57 kDa and a pI of8.34....

    pdf8p fptmusic 16-04-2013 26 1   Download

  • (BQ) Part 1 book "BRS Biochemistry, molecular biology and genetics" presents the following contents: Organic chemistry review; protein structure and function; enzymes, biochemistry of digestion; glycolysis; the tricarboxylic acid cycle, electron transport chain, and oxidative metabolism; glycogen metabolism; gluconeogenesis and the maintenance of blood glucose levels,... and other contents.

    pdf180p thangnamvoiva2 25-06-2016 16 1   Download

  • (BQ) Part 2 book "Heart rate and rhythm molecular basis pharmacological modulation and clinical implications" presents the following contents: Mechanisms of inherited arrhythmia, role of specific channels and transporters in arrhythmia, drugs and cardiac arrhythmia.

    pdf294p thangnamvoiva4 01-07-2016 13 1   Download

  • The metallic character of the electronic transport in both asymmetric and symmetric ZGNRs has been established: the current has a semiconductor behavior, with negative differential resistance (NDR) effect. Symmetric SW defect, as a most unfavorable SW defect type for electric conductance, remarkably reduces the current values, but does not change the character of conductivity in both the asymmetric and symmetric ZGNRs. NDR has been explained by the SW defect-induced alteration of the number of frontier molecular orbitals entering bias windows.

    pdf16p thuyliebe 08-10-2018 1 0   Download

  • Plant response to reduced water availability and other abiotic stress (e.g. metals) have been analysed through changes in water absorption and transport mechanisms and also by molecular and genetic approach. A relatively new aspects of fruit nutrition are presented in order to provide the basis for the improvement of some fruit quality traits. The involvement of hormones, nutritional and proteomic plant profiles together with some structure/function of sexual components have also been addressed.

    pdf398p conquynho32 14-09-2012 75 29   Download

  • This first part is concerned with processes in which the kinetic behaviour of a gaseous phase is rate-determining. The range of processes includes some which are carried out in vacuum systems in which Knudsen or free evaporation occurs from a condensed phase, to transport reactions where a chemical reaction occurs between a solid and the gaseous phase to produce molecular species containing some or all of the elements occurring in the solid phase.

    pdf393p nhatkyvodanh 11-08-2012 54 25   Download

  • Permanganate may be applied to sites as either potassium permanganate (KMnO4) or sodium permanganate (NaMnO4). Where cost dominates over engineering factors at a site, potassium permanganate is the preferred chemical form because it is more widely available, less costly, and is available in solid form, which facilitates transport and handling. Where other factors are more important, the liquid form of sodium permangante is preferable.

    pdf52p cao_can 29-12-2012 56 21   Download

  • Engineering is the integration of art and science and involves the use of systematic knowledge based on the principles of mathematics and the physical sciences to design and develop systems that have direct practical applicability for the benefit of mankind and society.With this philosophy in mind, the importance of the engineering sciences becomes obvious, and this is especially true for the biomedical aspects, where the implications are easily identifiable. Of all the engineering sciences, biomedical engineering is considered to be the broadest.

    pdf309p chuyenphimbuon 21-07-2012 57 18   Download

  • Thus, in living cells, the rates of anterograde and retrograde transport between the two organelles appear to have a substantial effect on the morphology of the Golgi. The effect of the balance between anterograde and retrograde transport on the morphology of the ER remains to be explored. Recently, increasing evidence has suggested that alteration in Golgi morphology during mitosis is not a passive process but rather an active one, which is highly coordinated with entry into mitosis and its progression.

    pdf510p yeutinh98 22-09-2012 50 14   Download

  • The life cycle of the retrovirus consist of several steps. It begins with the binding of the viral envelope to cellular receptors, which enables fusion of the viral envelope with the cellular membrane. Consequently, the viral particle is uncoated, liberating the viral core into the cell cytoplasm. The viral DNA is reverse transcribed to DNA. Then, the viral DNA is transported to the nucleus where it is integrated into the host cell’s genome. From there, viral DNA is transcribed to RNA, some of which is translated to proteins.

    pdf602p kmkmkmkmkm 08-09-2012 29 12   Download


Đồng bộ tài khoản