Showing 1-30 of 72 results for "M8250"
Baoda Han et al.
Plant physiology, 182(2), 1052-1065 (2019-12-07)
Plasma membrane (PM) depolarization functions as an initial step in plant defense signaling pathways. However, only a few ion channels/transporters have been characterized in the context of plant immunity. Here, we show that the Arabidopsis (Arabidopsis thaliana) Na+:K+:2Cl- (NKCC) cotransporter...
Christian Engelbrekt et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 11(13), 2844-2853 (2010-08-18)
Monodisperse platinum nanoparticles (PtNPs) were synthesized by a green recipe. Glucose serves as a reducing agent and starch as a stabilization agent to protect the freshly formed PtNP cores in buffered aqueous solutions. Among the ten buffers studied, 2-(N-morpholino)ethanesulfonic acid...
Susann K J Ludwig et al.
Analytical and bioanalytical chemistry, 406(27), 6857-6866 (2014-06-29)
Current contaminant and residue monitoring throughout the food chain is based on sampling, transport, administration, and analysis in specialized control laboratories. This is a highly inefficient and costly process since typically more than 99% of the samples are found to...
Kefang Xie et al.
Acta crystallographica. Section D, Biological crystallography, 61(Pt 10), 1386-1394 (2005-10-06)
The NNA7 Fab antibody fragment recognizes the human N-type blood-group antigen comprised of the N-terminal glycopeptide of glycophorin A (GPA). A mutant form of this Fab fragment, NNA7-G91S, exhibits markedly reduced antigen binding. To provide insight into how these Fab...
Tongqing Zhou et al.
Cell host & microbe, 28(6), 867-879 (2020-12-04)
The SARS-CoV-2 spike employs mobile receptor-binding domains (RBDs) to engage the human ACE2 receptor and to facilitate virus entry, which can occur through low-pH-endosomal pathways. To understand how ACE2 binding and low pH affect spike conformation, we determined cryo-electron microscopy...
Yasir S Elhassan et al.
Cell reports, 28(7), 1717-1728 (2019-08-15)
Nicotinamide adenine dinucleotide (NAD+) is modulated by conditions of metabolic stress and has been reported to decline with aging in preclinical models, but human data are sparse. Nicotinamide riboside (NR) supplementation ameliorates metabolic dysfunction in rodents. We aimed to establish...
Michael C Breadmore et al.
Analytical chemistry, 80(16), 6373-6381 (2008-07-17)
An electroosmotic flow (EOF) controlled counterflow isotachophoretic stacking boundary (cf-ITPSB) system under field amplified conditions has been examined as a way to improve the sensitivity of anions separated by capillary zone electrophoresis. The system comprised a high concentration of a...
Peng Zhai et al.
Materials science & engineering. C, Materials for biological applications, 56, 251-259 (2015-08-08)
Poly(lactic-co-glycolic acid) (PLGA) microspheres and PLGA/alginate composite microspheres were prepared by a novel double emulsion and solvent evaporation technique and loaded with bovine serum albumin (BSA) or rabbit anti-laminin antibody protein. The addition of alginate and the use of a...
Mathieu Cayla et al.
PLoS pathogens, 10(9), e1004347-e1004347 (2014-09-19)
Protozoan pathogens of the genus Leishmania have evolved unique signaling mechanisms that can sense changes in the host environment and trigger adaptive stage differentiation essential for host cell infection. The signaling mechanisms underlying parasite development remain largely elusive even though...
Yue-Hua Dou et al.
Electrophoresis, 23(20), 3558-3566 (2002-11-02)
Separation and direct detection of amino acids, glucose and peptide in a 3.1 cm separation channel made of poly(dimethylsiloxane) (PDMS) with end-column amperometric detection at a copper microdisk electrode was developed. This system is the integration of a normal sized...
Jessica R Ray et al.
ACS applied materials & interfaces, 7(21), 11117-11126 (2015-05-06)
Polyamide (PA) semipermeable membranes typically used for reverse osmosis water treatment processes are prone to fouling, which reduces the amount and quality of water produced. By synergistically coupling the photothermal and bactericidal properties of graphene oxide (GO) nanosheets, gold nanostars...
Nagaraju Anreddy et al.
Oncotarget, 6(36), 39276-39291 (2015-10-31)
ATP-binding cassette subfamily G member 2 (ABCG2) is a member of the ABC transporter superfamily proteins, which has been implicated in the development of multidrug resistance (MDR) in cancer, apart from its physiological role to remove toxic substances out of...
Tomoya Narawa et al.
Biological & pharmaceutical bulletin, 38(4), 545-551 (2015-04-04)
The stereoselective transport of methotrexate (L-amethopterin, L-MTX) and its enantiomer (D-amethopterin, D-MTX) by the rat proton-coupled folate transporter (rPCFT) were examined using rPCFT-expressing HEK293 cells. The initial rate of uptake of [3H]-L-MTX by the rPCFT followed Michaelis-Menten kinetics, with a...
Guilhem Reyt et al.
Current biology : CB, 30(20), 4103-4111 (2020-08-29)
Casparian strips (CSs) are cell wall modifications of vascular plants restricting extracellular free diffusion into and out of the vascular system [1]. This barrier plays a critical role in controlling the acquisition of nutrients and water necessary for normal plant...
Proteomic and phosphoproteomic analyses of chromatin-associated proteins from Arabidopsis thaliana.
Bigeard J et al.
Proteomics, 14, 2141-2141 (2014)
Didem Rodoplu et al.
Current pharmaceutical design, 21(37), 5389-5400 (2015-09-18)
Magnetic nanoparticles are considered as the ideal substrate to selectively isolate target molecules or organisms from sample solutions in a wide variety of applications including bioassays, bioimaging and environmental chemistry. The broad array of these applications in fields requires the...
Madeline Wong et al.
Biochemistry, 52(37), 6548-6558 (2013-09-03)
To date, little work has been conducted on the relationship between solute and buffer molecules and conformational exchange motion in enzymes. This study uses solution NMR to examine the effects of phosphate, sulfate, and acetate in comparison to MES- and...
Davide Gambarotto et al.
Nature methods, 16(1), 71-74 (2018-12-19)
Determining the structure and composition of macromolecular assemblies is a major challenge in biology. Here we describe ultrastructure expansion microscopy (U-ExM), an extension of expansion microscopy that allows the visualization of preserved ultrastructures by optical microscopy. This method allows for...
Elisabet Fuguet et al.
Electrophoresis, 29(13), 2841-2851 (2008-06-12)
The performance of the most common and also some other less common CE buffers has been tested for the pKa determination of several types of compounds (pyridine, amines, and phenols). The selected buffers cover a pH ranging from 3.7 to...
Cecilia Gelfi et al.
Electrophoresis, 23(10), 1517-1523 (2002-07-13)
A large number of point mutations in the p53 gene have been detected by capillary zone electrophoresis via single-strand conformation polymorphism (SSCP) analysis. A much improved detection sensitivity was obtained via the following modifications in running conditions: use of low-viscosity...
Padmavati Venkataraman et al.
The Journal of biological chemistry, 280(22), 21463-21472 (2005-03-24)
The influenza virus M2 proton-selective ion channel activity facilitates virus uncoating, a process that occurs in the acidic environment of the endosome. The M2 channel causes acidification of the interior of the virus particle, which results in viral protein-protein dissociation....
Shuai Jin et al.
Molecular cell, 79(5), 728-740 (2020-07-30)
Cytosine base editors (CBEs) generate C-to-T nucleotide substitutions in genomic target sites without inducing double-strand breaks. However, CBEs such as BE3 can cause genome-wide off-target changes via sgRNA-independent DNA deamination. By leveraging the orthogonal R-loops generated by SaCas9 nickase to...
"(Un) suitability of the use of pH buffers in biological, biochemical and environmental studies and their interaction with metal ions-a review.
Ferreira, Carlos MH, et al.
Royal Society of Chemistry Advances, 5 (39), 30989-31003 (2015)
Good, Norman E. et al.
Biochemistry, 5, 467- 477 (1966)
Takehiro Yokota et al.
Proteins, 66(2), 272-278 (2006-10-28)
Human JNK stimulatory phosphatase-1 (JSP-1) is a novel member of dual specificity phosphatases. A C-terminus truncated JSP-1 was expressed in Escherichia coli and was crystallized using the sitting-drop vapor diffusion method. Thin-plate crystals obtained at 278 K belong to a...
Pasi S Vuorinen et al.
Journal of chromatography. A, 990(1-2), 45-52 (2003-04-11)
A contactless conductivity detector integrated into the capillary cassette of Agilent (3D)CE equipment is described. The detector is user-friendly, compact and easily modified. The UV detector of the (3D)CE equipment is available parallel with the contactless conductivity detector increasing the...
Xu Yu et al.
Biosensors & bioelectronics, 66, 520-526 (2014-12-17)
A novel highly sensitive colorimetric assay for DNA detection using cascade amplification strategy based on hybridization chain reaction and enzyme-induced metallization was established. The DNA modified superparamagnetic beads were demonstrated to capture and enrich the target DNA in the hybridization...
Ekta G Ahuja et al.
Acta crystallographica. Section D, Biological crystallography, 60(Pt 6), 1129-1131 (2004-05-26)
Phenazines are broad-spectrum antibiotic metabolites produced by organisms such as Pseudomonas and Streptomyces. Phenazines have been shown to enhance microbial competitiveness and the pathogenic potential of the organisms that synthesize them. PhzA (163 residues, approximate molecular weight 18.7 kDa) is...
Youssef Abdalla et al.
Journal of nanobiotechnology, 19(1), 60-60 (2021-02-28)
Approximately 80% of brain tumours are gliomas. Despite treatment, patient mortality remains high due to local metastasis and relapse. It has been shown that transferrin-functionalised porous silicon nanoparticles (Tf@pSiNPs) can inhibit the migration of U87 glioma cells. However, the underlying...
Kevin Wiehe et al.
Cell host & microbe, 23(6), 759-765 (2018-06-05)
HIV-1 broadly neutralizing antibodies (bnAbs) require high levels of activation-induced cytidine deaminase (AID)-catalyzed somatic mutations for optimal neutralization potency. Probable mutations occur at sites of frequent AID activity, while improbable mutations occur where AID activity is infrequent. One bottleneck for induction of...

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