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Tali H Reingewertz et al.
Biochemistry, 54(21), 3337-3347 (2015-05-13)
The leading risk factor for gastric cancer in humans is infection by Helicobacter pylori strains that express and translocate the oncoprotein CagA into host epithelial cells. Once inside host cells, CagA interacts with ASPP2, which specifically stimulates p53-mediated apoptosis and
Ji-Hye Yun et al.
Biochimica et biophysica acta, 1848(6), 1294-1302 (2015-03-11)
The melanocortin receptors (MCRs) are members of the G protein-coupled receptor (GPCR) 1 superfamily with seven transmembrane (TM) domains. Among them, the melanocortin-4 receptor (MC4R) subtype has been highlighted recently by genetic studies in obese humans. In particular, in a
Sung Bae Kim et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 31(10), 955-960 (2015-10-16)
The present study demonstrates cation-driven optical properties of artificial luciferases (ALucs) from copepod luciferases, as an optical readout for bioanalysis. An assignment of the supersecondary structure code (SSC) of ALucs revealed that ALucs carry a helix-loop-helix structure, which appears at
Emre Balta et al.
Nature communications, 10(1), 4073-4073 (2019-09-11)
Several antitumor therapies work by increasing reactive oxygen species (ROS) within the tumor micromilieu. Here, we reveal that L-plastin (LPL), an established tumor marker, is reversibly regulated by ROS-induced thiol oxidation on Cys101, which forms a disulfide bridge with Cys42.
John H Dawson et al.
Biopolymers, 67(4-5), 200-206 (2002-05-16)
Recent ligand binding and spectroscopic investigations of the myoglobin H93G cavity mutant are reviewed, revealing it to be a versatile template for the preparation of model heme complexes of defined structure. The H93G myoglobin cavity mutant is shown to be
M Wiciński et al.
Polish journal of veterinary sciences, 16(2), 293-297 (2013-08-27)
The aim of the study was to assess the impact of modulating factors on vascular smooth muscle cells reactivity. Vascular resistance was induced by the administration of increasing concentrations of imidazole. The experiments were performed on isolated and perfused tail
Jason W Westerbeck et al.
Journal of virology, 89(18), 9313-9323 (2015-07-03)
Coronaviruses (CoVs) assemble by budding into the lumen of the early Golgi complex prior to exocytosis. The small CoV envelope (E) protein plays roles in assembly, virion release, and pathogenesis. CoV E has a single hydrophobic domain (HD), is targeted
Keith H Jansson et al.
PloS one, 9(6), e98408-e98408 (2014-06-04)
Prostate cancer (PCa) is believed to metastasize through the blood/lymphatics systems; however, PCa may utilize the extensive innervation of the prostate for glandular egress. The interaction of PCa and its nerve fibers is observed in 80% of PCa and is
Mona I Shaaban et al.
Journal of microbiology and biotechnology, 25(6), 887-892 (2015-01-16)
Uricase is an important microbial enzyme that can be used in the clinical treatment of gout, hyperuricemia, and tumor lysis syndrome. A total of 127 clinical isolates of Pseudomonas aeruginosa were tested for uricase production. A Pseudomonas strain named Ps43
Algirdas Grevys et al.
Journal of immunology (Baltimore, Md. : 1950), 194(11), 5497-5508 (2015-04-24)
Engineering of the constant Fc part of monoclonal human IgG1 (hIgG1) Abs is an approach to improve effector functions and clinical efficacy of next-generation IgG1-based therapeutics. A main focus in such development is tailoring of in vivo half-life and transport
Rory K Morgan et al.
ACS chemical biology, 10(8), 1778-1784 (2015-05-16)
ADP-ribosylation is essential for cell function, yet there is a dearth of methods for detecting this post-translational modification in cells. Here, we describe a clickable aminooxy alkyne (AO-alkyne) probe that can detect cellular ADP-ribosylation on acidic amino acids following Cu-catalyzed
Sophie Legaz et al.
Protein expression and purification, 113, 94-101 (2015-05-24)
Gal4/UAS system is a powerful tool for the analysis of numerous biological processes. Gal4 is a large yeast transcription factor that activates genes including UAS sequences in their promoter. Here, we have synthesized a minimal form of Gal4 DNA sequence
Jeong-Min Jeon et al.
International journal of molecular sciences, 16(7), 16695-16709 (2015-07-25)
Bradyrhizobium japonicum is a nitrogen-fixing symbiont of soybean. In previous studies, transcriptomic profiling of B. japonicum USDA110, grown under various environmental conditions, revealed the highly induced gene aceA, encoding isocitrate lyase (ICL). The ICL catalyzes the conversion of isocitrate to
Karen V Ambrose et al.
Scientific reports, 5, 10939-10939 (2015-06-10)
Epichloë spp. are symbiotic fungal endophytes of many cool season grasses. The presence of the fungal endophytes often confers insect, drought, and disease tolerance to the host grasses. The presence of the fungal endophytes within the host plants does not
Helen J Whalley et al.
Nature communications, 6, 7437-7437 (2015-06-17)
Centrosome separation is critical for bipolar spindle formation and the accurate segregation of chromosomes during mammalian cell mitosis. Kinesin-5 (Eg5) is a microtubule motor essential for centrosome separation, and Tiam1 and its substrate Rac antagonize Eg5-dependent centrosome separation in early
Zhenxing Liu et al.
International journal of oncology, 46(2), 721-731 (2014-11-26)
Imidazole, an organic alkaloid, is an important pharmacophore in drug discovery. Anti-neoplastic potential of imidazole derivatives has been documented in several studies; however, mechanisms by which tumor cells respond to these stimuli remain to be elucidated. Autophagy and apoptosis have
Asterios I Grigoroudis et al.
Protein expression and purification, 113, 8-16 (2015-05-10)
Bacterial expression of human proteins continues to present a critical challenge in protein crystallography and drug design. While human cyclin A constructs have been extensively characterized in complex with cyclin dependent kinase 2 (CDK2), efforts to express the monomeric human
Margarita Kanteev et al.
Biochimica et biophysica acta, 1854(12), 1906-1913 (2015-08-16)
2-Hydroxybiphenyl 3-monooxygenase (HbpA) is an FAD dependent monooxygenase which catalyzes the ortho-hydroxylation of a broad range of 2-substituted phenols in the presence of NADH and molecular oxygen. We have determined the structure of HbpA from the soil bacterium Pseudomonas azelaica
Karin Skaar et al.
PloS one, 10(7), e0134041-e0134041 (2015-07-29)
Tetraspanins are integral membrane proteins that function as organizers of multimolecular complexes and modulate function of associated proteins. Mammalian genomes encode approximately 30 different members of this family and remotely related eukaryotic species also contain conserved tetraspanin homologs. Tetraspanins are
Prashant R Desai et al.
PLoS genetics, 11(8), e1005447-e1005447 (2015-08-15)
Candida albicans is a common commensal in the human gut but in predisposed patients it can become an important human fungal pathogen. As a commensal, C. albicans adapts to low-oxygen conditions and represses its hyphal development by the transcription factor
Abbas El Sahili et al.
PLoS pathogens, 11(8), e1005071-e1005071 (2015-08-06)
Periplasmic binding proteins (PBPs) in association with ABC transporters select and import a wide variety of ligands into bacterial cytoplasm. They can also take up toxic molecules, as observed in the case of the phytopathogen Agrobacterium tumefaciens strain C58. This
Andreas Bracher et al.
PloS one, 10(8), e0135448-e0135448 (2015-08-26)
The most prevalent form of the Rubisco enzyme is a complex of eight catalytic large subunits (RbcL) and eight regulatory small subunits (RbcS). Rubisco biogenesis depends on the assistance by specific molecular chaperones. The assembly chaperone RbcX stabilizes the RbcL
María J Trujillo-Rodríguez et al.
Analytical and bioanalytical chemistry, 407(29), 8753-8764 (2015-09-26)
The use of mixed hemimicelles of ionic liquid (IL)-based surfactants in a magnetic-based micro-dispersive solid-phase extraction (m-μdSPE) approach is described. Not only is the symmetric monocationic IL-based surfactant 1,3-didodecylimidazolium bromide (C12C12Im-Br) studied for first time in m-μdSPE, but double-salt (DS)
J A Hutcherson et al.
Molecular oral microbiology, 30(3), 242-252 (2014-11-25)
Periodontal diseases are semi-ubiquitous and caused by chronic, plaque-induced inflammation. The 55-kDa immunodominant RagB outer membrane protein of Porphyromonas gingivalis, a keystone periodontal pathogen, has been proposed to facilitate nutrient transport. However, potential interactions between RagB and the innate response
Zhengjiang Fu et al.
Bioorganic chemistry, 59, 31-38 (2015-02-14)
Cu(II)-mediated autoxidations of 4-tert-butylphenol under various conditions was studied, the data confirmed imidazole is the best ligand to promote phenol oxygenation. The same reaction of 2,4-di-tert-butylphenol proceeded much more quickly to lead nearly exclusively to oxidative coupling rather than oxygenation
Thangavel Vaijayanthi et al.
Bioorganic & medicinal chemistry, 21(4), 852-855 (2013-01-15)
Fluorophores that are conjugated with N-methylpyrrole-N-methylimidazole (Py-Im) polyamides postulates versatile applications in biological and physicochemical studies. Here, we show the design and synthesis of new types of pyrene-conjugated hairpin Py-Im polyamides (1-5). We evaluated the steady state fluorescence of the
Clara Brieke et al.
Organic & biomolecular chemistry, 13(7), 2012-2021 (2014-12-17)
Understanding the mechanisms underpinning glycopeptide antibiotic biosynthesis is key to the future ability to reinvent these compounds. For effective in vitro characterization of the crucial later steps of the biosynthesis, facile access to a wide range of substrate peptides as
Marina Makrecka et al.
Molecular and cellular biochemistry, 395(1-2), 1-10 (2014-06-01)
In the heart, a nutritional state (fed or fasted) is characterized by a unique energy metabolism pattern determined by the availability of substrates. Increased availability of acylcarnitines has been associated with decreased glucose utilization; however, the effects of long-chain acylcarnitines
Cheng-Yi Chiang et al.
PloS one, 10(7), e0134108-e0134108 (2015-07-29)
Chromoproteins (CPs) have unique colors and can be used in biological applications. In this work, a novel blue CP with a maximum absorption peak (λmax) at 608 nm was identified from the carpet anemone Stichodactyla gigantea (sgBP). In vivo expression
René Hummerich et al.
ACS chemical neuroscience, 6(7), 1130-1136 (2015-03-21)
Distinct proteins have been demonstrated to be posttranslationally modified by covalent transamidation of serotonin (5-hydropxytryptamin) to glutamine residues of the target proteins. This process is mediated by transglutaminase (TGase) and has been termed "serotonylation." It has also been shown that
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