Evidence for glucuronide (small molecule) sorting by human hepatic endoplasmic reticulum.

abstract：:Gap junctions are plasma membrane spatial microdomains constructed of assemblies of channel proteins called connexins in vertebrates and innexins in invertebrates. The channels provide direct intercellular communication pathways allowing rapid exchange of ions and metabolites up to approximately 1 kD in size. Approxim...

journal_title：Molecular membrane biology

authors： Evans WH,Martin PE

更新日期：2002-04-01 00:00:00

abstract：:This investigation is aimed at defining the structural requirements for aliphatic polyamines to interact with mitochondrial binding sites, which are relevant for the regulation of the permeability transition and for mitochondrial polyamine uptake. The triamines N-aminoethyl-1,2-diaminoethane (dien) and N-aminopropyl-1...

journal_title：Molecular membrane biology

authors： Dalla Via L,Salvi M,Di Noto V,Stefanelli C,Toninello A

更新日期：2004-03-01 00:00:00

abstract：:Neurotransmitter transporters are regulated through a variety of signal transduction mechanisms which appear to operate in order to maintain appropriate levels of transmitter in the synaptic cleft. One such mechanism is the trafficking of the transporter in association with synaptic vesicle release machinery. This rep...

journal_title：Molecular membrane biology

authors： Horton N,Quick MW

更新日期：2001-01-01 00:00:00

abstract：:Numerous cell surface receptors propagate activation signals to the interior of the cell via tyrosine phosphorylation of transmembrane proteins. This leads to the phosphotyrosine (PiY)-mediated recruitment of cytoplasmic signalling protein complexes which catalyze crucial biochemical signalling reactions. Here we desc...

journal_title：Molecular membrane biology

authors： Sangani D,Venien-Bryan C,Harder T

更新日期：2009-04-01 00:00:00

abstract：:Site-directed mutagenesis and site-directed fluorescence spectroscopy demonstrate that Cys148 interacts hydrophobically with the galactosyl moiety of substrates of the lactose permease of Escherichia coli. By taking advantage of the finding that labelling of single-Cys148 permease with the thiol-specific fluorophore 2...

journal_title：Molecular membrane biology

authors： He MM,Kaback HR

更新日期：1998-01-01 00:00:00

abstract：:Loss of epithelial cell polarity, which can arise following disruption of tight junctions (TJs), is a precursor to the care-fully orchestrated removal of moribund cells from epithelia in apoptosis. Ordinarily, this cycle of events has minimally disruptive effects on the function of the epithelial barrier, but some age...

journal_title：Molecular membrane biology

authors： Baker SF,Yin Y,Runswick SK,Stewart GA,Thompson PJ,Garrod DR,Robinson C

更新日期：2003-01-01 00:00:00

abstract：:Intracellular pH was measured with the pH-sensitive fluorescent probe BCECF in spinal cord neurones cultured from rat embryos. At an external pH of 7.3, the average steady-state pHi was 7.18 +/- 0.03 (SEM, n = 97) and 7.02 +/- 0.01 (n = 221) in HEPES-buffered and in bicarbonate-buffered medium, respectively. In both e...

journal_title：Molecular membrane biology

authors： Brechenmacher C,Rodeau JL

更新日期：2000-04-01 00:00:00

abstract：:Membrane proteins are intrinsically involved in both human and pathogen physiology, and are the target of 60% of all marketed drugs. During the past decade, advances in the studies of membrane proteins using X-ray crystallography, electron microscopy and NMR-based techniques led to the elucidation of over 250 unique m...

journal_title：Molecular membrane biology

authors： Simmons KJ,Gotfryd K,Billesbølle CB,Loland CJ,Gether U,Fishwick CW,Johnson AP

更新日期：2013-03-01 00:00:00

abstract：:Spontaneous membrane adsorption, folding and insertion of the synthetic WALP16 and KALP16 peptides was studied by computer simulations starting from completely extended conformations. The peptides were simulated using an unmodified all-atom force field in combination with an efficient Monte Carlo sampling algorithm. T...

journal_title：Molecular membrane biology

authors： Ulmschneider MB,Ulmschneider JP

更新日期：2008-04-01 00:00:00

abstract：:The number of Signal Peptidase I (SPasel) molecules per E. coli cell was determined using western blot techniques. Different strains were found to contain approximately 1000 SPasel molecules per cell during exponential growth. Based on the activity of SPasel in vitro it could be estimated that this amount is sufficien...

journal_title：Molecular membrane biology

authors： van Klompenburg W,Whitley P,Diemel R,von Heijne G,de Kruijff B

更新日期：1995-10-01 00:00:00

abstract：:Solid-state NMR combined with sample deuteration was used to probe the proximity of the low-affinity substrate D-glucose to its binding site within the Escherichia coli sugar transport protein GalP. Samples of E. coli inner membranes with amplified expression of GalP were incubated in D(2)O with D-[(13)C(6)]glucose an...

journal_title：Molecular membrane biology

authors： Patching SG,Henderson PJ,Sharples DJ,Middleton DA

更新日期：2013-03-01 00:00:00

abstract：:Palmitoylation is required for the activities of several cancer-associated proteins, making the palmitoyl acyltransferase (PAT) enzymes that catalyze these reactions potential targets for anticancer therapeutics. In this study, we sought to identify and characterize a human PAT with activity toward N-terminally myrist...

journal_title：Molecular membrane biology

authors： Draper JM,Smith CD

更新日期：2010-04-01 00:00:00

abstract：:Organellar and cytosolic pH homeostasis is central to most cellular processes, including vesicular trafficking, post-translational modification/processing of proteins, and receptor-ligand interactions. SLC9A7 (NHE7) was identified as a unique (Na+, K+)/H+ exchanger that dynamically cycles between the trans-Golgi netwo...

journal_title：Molecular membrane biology

authors： Kagami T,Chen S,Memar P,Choi M,Foster LJ,Numata M

更新日期：2008-08-01 00:00:00

abstract：:The present review introduces the concept of 'non-permanent membrane proteins', to encompass the wide variety of proteins that are not found in a stable membrane-bound form under physiological conditions, yet they interact with the membrane at some stage of their specific course of action. Non-permanent membrane prote...

journal_title：Molecular membrane biology

authors： Goñi FM

更新日期：2002-10-01 00:00:00

abstract：:Modification of proteins with the lipid palmitate, a process called palmitoylation, is important for the normal function of neuronal cells. However, most attention has focused on how palmitoylation regulates the targeting and trafficking of neurotransmitter receptors and non-enzymatic scaffold proteins. In this review...

journal_title：Molecular membrane biology

authors： Montersino A,Thomas GM

更新日期：2015-08-01 00:00:00

abstract：:The mitochondrial ADP/ATP carrier imports ADP from the cytosol into the mitochondrial matrix for its conversion to ATP by ATP synthase and exports ATP out of the mitochondrion to replenish the eukaryotic cell with chemical energy. Here the substrate specificity of the human mitochondrial ADP/ATP carrier AAC1 was deter...

journal_title：Molecular membrane biology

authors： Mifsud J,Ravaud S,Krammer EM,Chipot C,Kunji ER,Pebay-Peyroula E,Dehez F

更新日期：2013-03-01 00:00:00

abstract：:Small GTPase Rab36 is homologous to Rab34 with 56% amino acid sequence identity. Rab34 was characterized as a Golgi-associated Rab protein and regulates lysosomal positioning through interaction with RILP; however, the properties and functions of Rab36 have not been investigated. To investigate Rab36, we constructed E...

journal_title：Molecular membrane biology

authors： Chen L,Hu J,Yun Y,Wang T

更新日期：2010-01-01 00:00:00

abstract：:The transporter SbtA is a high affinity Na+-dependent HCO3- uptake system present in a majority of cyanobacterial clades. It functions in conjunction with CO2 uptake systems and other HCO3- uptake systems to allow cyanobacteria to accumulate high levels of HCO3- used to support efficient photosynthetic CO2 fixation vi...

journal_title：Molecular membrane biology

authors： Price GD,Shelden MC,Howitt SM

更新日期：2011-08-01 00:00:00

abstract：:In Saccharomyces cerevisiae Jen1p is a lactate/proton symporter belonging to the lactate/pyruvate:H(+) symporter subfamily (TC#2.A.1.12.2) of the Major Facilitator Superfamily. We investigated structure-function relationships of Jen1p using a rational mutational analysis based on the identification of conserved amino ...

journal_title：Molecular membrane biology

authors： Soares-Silva I,Paiva S,Diallinas G,Casal M

更新日期：2007-09-01 00:00:00

abstract：:Flavonoids are ubiquitous polyphenolic compounds, found in vascular plants, which are endowed with a large variety of biological effects. Some of these effects have been assumed to result from interactions with the cell plasma membrane. In order to investigate the nature of these interactions a fluorescence study was ...

journal_title：Molecular membrane biology

authors： Lenne-Gouverneur AF,Lobstein A,Haan-Archipoff G,Duportail G,Anton R,Kuhry JG

更新日期：1999-04-01 00:00:00

abstract：:NupG from Escherichia coli is the archetype of a family of nucleoside transporters found in several eubacterial groups and has distant homologues in eukaryotes, including man. To facilitate investigation of its molecular mechanism, we developed methods for expressing an oligohistidine-tagged form of NupG both at high ...

journal_title：Molecular membrane biology

authors： Xie H,Patching SG,Gallagher MP,Litherland GJ,Brough AR,Venter H,Yao SY,Ng AM,Young JD,Herbert RB,Henderson PJ,Baldwin SA

更新日期：2004-09-01 00:00:00

abstract：:Neurotransmitter receptor trafficking in and out synapses has emerged as a key process to regulate synaptic transmission during synaptic development and plasticity both at excitatory and inhibitory synapses. Lateral diffusion of surface neurotransmitter receptors has recently emerged as a key pathway to regulate recep...

journal_title：Molecular membrane biology

authors： Groc L,Choquet D

更新日期：2008-05-01 00:00:00

abstract：:The transverse distribution of phosphatidylglycerol (PG) across the inner membrane of Escherichia coli was studied. The oxidation of PG by periodate was used to discriminate between the PG present in the cytoplasmic and in the periplasmic leaflet of the inner membrane. Applied to large unilamellar vesicles derived of ...

journal_title：Molecular membrane biology

authors： Huijbregts RP,de Kroon AI,de Kruijff B

更新日期：1997-01-01 00:00:00

abstract：:The eukaryotic endomembrane system (ES) is served by hundreds of dedicated proteins. Experimental characterization of the ES-associated molecular machinery in several model eukaryotes complemented by a recent progress in phylogenomics and comparative genomics have revealed a conserved complex core of the machinery tha...

journal_title：Molecular membrane biology

authors： Elias M

更新日期：2010-11-01 00:00:00

abstract：:This review describes the numerous and innovative methods used to study the structure and function of viral fusion peptides. The systems studied include both intact fusion proteins and synthetic peptides interacting with model membranes. The strategies and methods include dissecting the fusion process into intermediat...

journal_title：Molecular membrane biology

authors： Durell SR,Martin I,Ruysschaert JM,Shai Y,Blumenthal R

更新日期：1997-07-01 00:00:00

abstract：:That some membranes restrict certain lipid species to one side of the bilayer and others to the opposite side has been known for two decades. However, how this asymmetric transbilayer distribution is generated and controlled, how many and what type of membranes are so structured, and even the reason for its existence ...

journal_title：Molecular membrane biology

authors： Williamson P,Schlegel RA

更新日期：1994-10-01 00:00:00

abstract：:Cystic fibrosis transmembrane conductance regulator (CFTR) is a cAMP-regulated C1(-) channel. Malfunction of CFTR causes cystic fibrosis (CF). CFTR belongs to an ATP-binding cassette (ABC) transporter superfamily which includes P-glycoprotein (Pgp), the molecule that is responsible for multidrug resistance in cancer c...

journal_title：Molecular membrane biology

authors： Chen M,Zhang JT

更新日期：1996-01-01 00:00:00

abstract：:Dengue fever is one of the most widespread tropical diseases in the world. The disease is caused by a virus member of the Flaviviridae family, a group of enveloped positive sense single-stranded RNA viruses. Dengue virus infection is mediated by virus glycoprotein E, which binds to the cell surface. After uptake by en...

journal_title：Molecular membrane biology

authors： Stauffer F,Melo MN,Carneiro FA,Sousa FJ,Juliano MA,Juliano L,Mohana-Borges R,Da Poian AT,Castanho MA

更新日期：2008-02-01 00:00:00

abstract：:The Signal Recognition Particle (SRP) plays a critical role in the sorting of nascent secretory and membrane proteins. Remarkably, this function has been conserved from bacteria, where SRP delivers proteins to the inner membrane, through to eukaryotes, where SRP is required for targeting of proteins to the endoplasmic...

journal_title：Molecular membrane biology

authors： Pool MR

更新日期：2005-01-01 00:00:00

abstract：:Glu-269, which is located on the hydrophilic face of putative helix VIII in the lactose permease of Escherichia coli, has been replaced with Asp, Gln or Cys by oligonucleotide-directed, site specific mutagenesis. Cells expressing Asp-269 permease exhibit no lactose accumulation or lactose-induced H+ translocation, but...

journal_title：Molecular membrane biology

authors： Ujwal ML,Sahin-Tóth M,Persson B,Kaback HR

更新日期：1994-01-01 00:00:00