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Avisek Mahapa et al.
PloS one, 10(3), e0122168-e0122168 (2015-03-31)
SarA, a Staphylococcus aureus-specific dimeric protein, modulates the expression of numerous proteins including various virulence factors. Interestingly, S. aureus synthesizes multiple SarA paralogs seemingly for optimizing the expression of its virulence factors. To understand the domain structure/flexibility and the folding/unfolding
Ming Lei et al.
Journal of pharmaceutical sciences, 104(3), 995-1004 (2014-12-30)
The biopharmaceutical industry increasingly demands thorough characterization of protein conformation and conformational dynamics to ensure product quality and consistency. Here, we present a chromatography-based method that is able to characterize protein conformation and conformational dynamics at peptide level resolution in
Rahul D Sheth et al.
Biotechnology and bioengineering, 111(8), 1595-1603 (2014-03-07)
In this work, a proof of concept elastin-like polypeptide-Z domain fusion (ELP-Z) based affinity precipitation process is developed for monoclonal antibody (mAb) purification from industrial harvest feeds. Greater than 99% mAb recoveries are obtained during the initial binding step of
Dipankar Chaudhuri et al.
PloS one, 10(12), e0144280-e0144280 (2015-12-04)
The antioxidant and restoration potentials of hepatic injury by Prunus nepalensis Ser. (Steud), a wild fruit plant from the Northeastern region of India, were investigated. The fruit extract (PNME) exhibited excellent antioxidant and reducing properties and also scavenged the 2,2-diphenyl-1-picrylhydrazyl
Md Nurul Islam et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 69, 55-62 (2014-04-10)
Vicenin 2, isolated from a traditionally used medicinal plant Artemisia capillaris, is a 6,8-di-C-glucoside of apigenin which has been previously reported to possess a wide variety of pharmacological activities including antioxidant, anti-inflammatory, anti-cancer, and hepatoprotective. However, there have not been
Stefan J Kempf et al.
Journal of proteome research, 14(11), 4674-4686 (2015-10-01)
Recent epidemiological data indicate that radiation doses as low as those used in computer tomography may result in long-term neurocognitive side effects. The aim of this study was to elucidate long-term molecular alterations related to memory formation in the brain
Crispin G Alexander et al.
Biochimica et biophysica acta, 1844(12), 2241-2250 (2014-09-30)
Chemical denaturant titrations can be used to accurately determine protein stability. However, data acquisition is typically labour intensive, has low throughput and is difficult to automate. These factors, combined with high protein consumption, have limited the adoption of chemical denaturant
Amanda Phaelante et al.
Journal of cardiovascular translational research, 8(5), 328-337 (2015-06-19)
The antioxidant N-acetycysteine can turn into a prooxidant molecule in presence of iron ions. Thus, our goal was to test if the association of N-acetylcysteine (NAC) and an iron chelator (deferoxamine--DFX) in a rodent model of acute myocardial infarction (AMI)
Florian Platten et al.
The journal of physical chemistry. B, 119(48), 14986-14993 (2015-11-07)
Protein phase behavior and protein-protein interactions can be tuned by additives. We experimentally determined the phase behavior of lysozyme solutions, namely, the cloud-point temperature (CPT), in the presence of two additives, sodium chloride (NaCl) and guanidine hydrochloride (GuHCl). Their concentrations
Shin Koike et al.
Biochemical and biophysical research communications, 467(2), 361-366 (2015-10-04)
Although it's well known that protein carbonyl (PCO) and advanced glycation end-products (AGEs) levels are elevated in plasma from patients with renal dysfunction, we recently identified patients who had no renal dysfunction but possessed high levels of plasma pentosidine (PEN)
David R Cooper et al.
Biophysical journal, 109(1), 66-75 (2015-07-15)
The N-methyl-D-aspartate receptor (NMDAR) is a member of the glutamate receptor family of proteins and is responsible for excitatory transmission. Activation of the receptor is thought to be controlled by conformational changes in the ligand binding domain (LBD); however, glutamate
Weronika E Borek et al.
Nature communications, 6, 7929-7929 (2015-08-06)
Microtubule nucleation is highly regulated during the eukaryotic cell cycle, but the underlying molecular mechanisms are largely unknown. During mitosis in fission yeast Schizosaccharomyces pombe, cytoplasmic microtubule nucleation ceases simultaneously with intranuclear mitotic spindle assembly. Cytoplasmic nucleation depends on the
Xu-Ying Wang et al.
Small (Weinheim an der Bergstrasse, Germany), 11(43), 5826-5832 (2015-10-01)
S-layer proteins create a cell-surface layer architecture in both bacteria and archaea. Because S-layer proteins self-assemble into a native-like S-layer crystalline structure in vitro, they are attractive building blocks in nanotechnology. Here, the potential use of the S-layer protein EA1
Ksenya M Tabakmakher et al.
Natural product communications, 8(10), 1399-1402 (2013-12-21)
A new pentacyclic guanidine alkaloid, monanchomycalin C (1), along with the earlier known ptilomycalin A (2), were isolated from the Far-Eastern marine sponge Monanchora pulchra. The structure of 1 was elucidated using 1D and 2D NMR spectroscopic and ma ss
Yuki Ozaki et al.
Materials science & engineering. C, Materials for biological applications, 42, 146-154 (2014-07-27)
In this study, we show a novel simple method to prepare a sponge-like porous keratin hydrogel through the extraction of wool keratin in a solution containing guanidine hydrochloride and 2-mercaptoethanol followed by dialysis for both aggregation of keratin and recrosslink.
O B Oloyede et al.
Journal of ethnopharmacology, 157, 309-319 (2014-08-31)
Blighia sapida leaves are used in the management of diabetes in Nigeria. Thus the antidiabetic activity of methanolic Blighia sapida leaf extract and its capability to halt oxidative stress and dyslipidemia in alloxan-induced diabetic rats were investigated. In vitro antioxidant
Marina Šekutor et al.
The journal of physical chemistry. A, 117(10), 2242-2252 (2013-02-19)
ESI-MS/MS investigation of the mono- and bis(guanylhydrazone) derivatives 1-5 based on adamantane and pentacycloundecane (PCU) skeleton was described. Elimination of neutral guanidine is the most abundant reaction channel in the case of 2,4-adamantyl and PCU derivatives 4 and 5, while
Adrian M Gospodarek et al.
Journal of chromatography. A, 1355, 238-252 (2014-07-07)
Recent studies with proteins indicate that conformational changes and aggregation can occur during ion exchange chromatography (IEC). Such behavior is not usually expected, but could lead to decreased yield and product degradation from both IEC and multi mode chromatography (MMC)
Zsuzsanna Darula et al.
Analytical chemistry, 87(12), 6297-6302 (2015-05-16)
Iodoacetamide is perhaps the most widely used reagent for the alkylation of free sulfhydryls in proteomic experiments. Here, we report that both incomplete derivatization of Cys side chains and overalkylation of the peptides may lead to the misassignment of glycoforms
Elamaran Meibalan et al.
Eukaryotic cell, 14(4), 371-384 (2015-02-11)
Malaria parasites replicating inside red blood cells (RBCs) export a large subset of proteins into the erythrocyte cytoplasm to facilitate parasite growth and survival. PTEX, the parasite-encoded translocon, mediates protein transport across the parasitophorous vacuolar membrane (PVM) in Plasmodium falciparum-infected
Madhurima S Wakankar et al.
International journal of biological macromolecules, 56, 149-155 (2013-03-15)
The Cicer arietinum seed lectin was cloned and expressed in Escherichia coli and purified in active form. Conformational characterization of the recombinant lectin (rCAL) was performed using biophysical and bioinformatics tools. Thermal denaturation of rCAL caused rapid secondary structural rearrangements
Ewa M Koźma et al.
Experimental biology and medicine (Maywood, N.J.), 239(12), 1575-1588 (2014-06-11)
Tumor transformation and progression both lead to extracellular matrix remodeling, which is also reflected in an alteration in the proportion of dermatan sulphate (DS) and chondroitin sulphate (CS) and an accumulation of the latter. In addition, a significant increase in
Qi Chen et al.
Analytical and bioanalytical chemistry, 407(3), 1027-1032 (2014-10-20)
To analyze the proteome of an extremely low number of cells or even a single cell, we established a new method of digesting whole cells into mass-spectrometry-identifiable peptides in a single step within 2 h. Our sampling method greatly simplified the
Jennifer A Boylston et al.
Journal of molecular and cellular cardiology, 88, 73-81 (2015-09-22)
Succinylation refers to modification of lysine residues with succinyl groups donated by succinyl-CoA. Sirtuin5 (Sirt5) is a mitochondrial NAD(+)-dependent deacylase that catalyzes the removal of succinyl groups from proteins. Sirt5 and protein succinylation are conserved across species, suggesting functional importance
K V Greco et al.
Journal of biomaterials applications, 30(2), 239-253 (2015-04-10)
Off-the-shelf availability of tissue-engineered skin constructs, tailored by different combinations of reagents to produce a highly preserved biological matrix is often the only means to help patients suffering skin damage. This study assessed the effect of five different decellularisation methods
Li-Juan Huang et al.
Journal of chromatography. A, 1371, 136-145 (2014-12-03)
We reported an improved combinatorial approach for identifying site-specific O-glycosylation using both glycan cleaved and non-cleaved methods. In this approach, a non-reducing β-elimination kit coupled with non-specific enzymes performed efficient digestion, O-glycan cleavage, and partial dephosphorylation without significant side reactions
Beatrice Campanella et al.
Analytica chimica acta, 843, 1-6 (2014-08-26)
In this work we have studied the derivatization of protein disulfide bonds with p-Hydroxymercurybenzoate (pHMB) in strong alkaline medium without any preliminary reduction. The reaction has been followed by the determination of the protein-pHMB complex using size exclusion chromatography coupled
Alvaro J Amor et al.
Prion, 9(2), 144-164 (2015-03-05)
The number of known fungal proteins capable of switching between alternative stable conformations is steadily increasing, suggesting that a prion-like mechanism may be broadly utilized as a means to propagate altered cellular states. To gain insight into the mechanisms by
Takashi Inui et al.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 34(9), 1558-1567 (2014-07-10)
Lipocalin-type prostaglandin (PG) D synthase (L-PGDS) is the second major protein in human cerebrospinal fluid (CSF) and belongs to the lipocalin superfamily composed of various secretory lipophilic ligand transporter proteins. However, the endogenous ligand of L-PGDS has not yet been
Nina Salinger Prasanphanich et al.
Glycobiology, 24(7), 619-637 (2014-04-15)
Schistosomiasis caused by infection with parasitic helminths of Schistosoma spp. is a major global health problem due to inadequate treatment and lack of a vaccine. The immune response to schistosomes includes glycan antigens, which could be valuable diagnostic markers and
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