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显示 1-30 共 156 条结果 关于 "A3286" 范围 论文
Constantin N Takacs et al.
Applied and environmental microbiology (2020-12-02)
The spirochete Borrelia burgdorferi causes Lyme disease, an increasingly prevalent infection. While previous studies have provided important insight into B. burgdorferi biology, many aspects, including basic cellular processes, remain underexplored. To help speed up the discovery process, we adapted a
Colette Cywes-Bentley et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(24), E2209-E2218 (2013-05-30)
Microbial capsular antigens are effective vaccines but are chemically and immunologically diverse, resulting in a major barrier to their use against multiple pathogens. A β-(1→6)-linked poly-N-acetyl-d-glucosamine (PNAG) surface capsule is synthesized by four proteins encoded in genetic loci designated intercellular
Yan-Tao Ma et al.
Biochemical and biophysical research communications, 431(3), 382-387 (2013-01-23)
Various physiological processes and behaviors show a circadian rhythm of approximately 24 h, which is crucial in coordinating internal metabolic processes and environmental signals. Post-translational modifications play an important role in regulating circadian core proteins. In this study, we demonstrated
Zhi Yuan Ma et al.
Methods in molecular biology (Clifton, N.J.), 951, 21-31 (2013-01-09)
In this chapter we describe the application of lectin weak affinity chromatography (LWAC) for the enrichment of peptides modified by O-linked β-N-acetylglucosamine (O-GlcNAc). O-GlcNAc is a single carbohydrate moiety post-translational modification of intracellular proteins. The stoichiometry of the modification is
T Y Chou et al.
Advances in experimental medicine and biology, 491, 413-418 (2003-10-10)
Altered protein glycosylation is known to correlate with tumorigenesis, but its role remains enigmatic. Cells transformed by altered oncogene or tumor suppressor gene expression often also show changes of carbohydrate on cell surface glycoconjugates which correlate with the potential for
Radka Svobodová Vařeková et al.
Nucleic acids research, 42(Web Server issue), W227-W233 (2014-05-23)
Structure validation has become a major issue in the structural biology community, and an essential step is checking the ligand structure. This paper introduces MotiveValidator, a web-based application for the validation of ligands and residues in PDB or PDBx/mmCIF format
Md Arifur Rahman et al.
Archives of pharmacal research, 37(12), 1522-1529 (2014-11-02)
A chitinase from Streptomyces sp. CS501 was isolated from the Korean soil sample, purified by single-step chromatography, and biochemically characterized. The extracellular chitinase (Ch501) was purified to 4.60 fold with yield of 28.74 % using Sepharose Cl-6B column. The molecular
Sercan Karav et al.
Biotechnology progress, 31(5), 1331-1339 (2015-06-23)
Endo-β-N-acetylglucosaminidase isolated from B. infantis ATCC 15697 (EndoBI-1) is a novel enzyme that cleaves N-N'-diacetyl chitobiose moieties found in the N-glycan core of high mannose, hybrid, and complex N-glycans. These conjugated N-glycans are recently shown as a new prebiotic source
Shannon M Bailey et al.
The Journal of endocrinology, 222(2), R75-R96 (2014-06-15)
In association with sleep-wake and fasting-feeding cycles, organisms experience dramatic oscillations in energetic demands and nutrient supply. It is therefore not surprising that various metabolic parameters, ranging from the activity status of molecular energy sensors to circulating nutrient levels, oscillate
David D L Minh et al.
Biophysical journal, 104(4), 873-883 (2013-02-28)
A new way to use wide-angle x-ray solution scattering to study protein-ligand binding is presented. First, scattering patterns are measured at different protein and ligand concentrations. Multivariate curve resolution based on singular value decomposition and global analysis is applied to
Karsten Arends et al.
Journal of bacteriology, 195(19), 4436-4444 (2013-08-06)
pIP501 is a conjugative broad-host-range plasmid frequently present in nosocomial Enterococcus faecalis and Enterococcus faecium isolates. We focus here on the functional analysis of the type IV secretion gene traG, which was found to be essential for pIP501 conjugative transfer
Maiken Mellergaard et al.
The Journal of biological chemistry, 295(33), 11803-11821 (2020-07-02)
Staphylococcus aureus is among the leading causes of bacterial infections worldwide. The pathogenicity and establishment of S. aureus infections are tightly linked to its ability to modulate host immunity. Persistent infections are often associated with mutant staphylococcal strains that have
Thomas Jank et al.
Nature communications, 6, 7807-7807 (2015-07-21)
Yersinia species cause zoonotic infections, including enterocolitis and plague. Here we studied Yersinia ruckeri antifeeding prophage 18 (Afp18), the toxin component of the phage tail-derived protein translocation system Afp, which causes enteric redmouth disease in salmonid fish species. Here we
Gerald W Hart et al.
Nature, 446(7139), 1017-1022 (2007-04-27)
All animals and plants dynamically attach and remove O-linked beta-N-acetylglucosamine (O-GlcNAc) at serine and threonine residues on myriad nuclear and cytoplasmic proteins. O-GlcNAc cycling, which is tightly regulated by the concerted actions of two highly conserved enzymes, serves as a
Brian A Lewis et al.
The Journal of biological chemistry, 289(50), 34440-34448 (2014-10-23)
O-GlcNAcylation is an abundant nutrient-driven modification linked to cellular signaling and regulation of gene expression. Utilizing precursors derived from metabolic flux, O-GlcNAc functions as a homeostatic regulator. The enzymes of O-GlcNAc cycling, OGT and O-GlcNAcase, act in mitochondria, the cytoplasm
Jiqing Huang et al.
Journal of proteome research, 14(8), 3015-3026 (2015-07-15)
Physiological stimuli, such as thrombin, or pathological stimuli, such as lysophosphatidic acid (LPA), activate platelets circulating in blood. Once activated, platelets bind to monocytes via P-selectin-PSGL-1 interactions but also release the stored contents of their granules. These platelet releasates, in
Intra-articular injection of N-acetylglucosamine and hyaluronic acid combined with PLGA scaffolds for osteochondral repair in rabbits
Wang H C, et al.
PLoS ONE, 13(12), e0209747-e0209747 (2018)
Carolyn B Ibberson et al.
Infection and immunity, 82(10), 4253-4264 (2014-07-30)
Staphylococcus aureus is a Gram-positive pathogen that causes a diverse range of bacterial infections. Invasive S. aureus strains secrete an extensive arsenal of hemolysins, immunomodulators, and exoenzymes to cause disease. Our studies have focused on the secreted enzyme hyaluronidase (HysA)
Jana Alonso et al.
The Journal of biological chemistry, 289(50), 34433-34439 (2014-10-23)
O-GlcNAc signaling is regulated by an opposing pair of enzymes: O-GlcNAc transferase installs and O-GlcNAcase (OGA) removes the modification from proteins. The dynamics and regulation of this process are only beginning to be understood as the physiological functions of both
John W Bullen et al.
The Journal of biological chemistry, 289(15), 10592-10606 (2014-02-25)
Nutrient-sensitive pathways regulate both O-GlcNAc transferase (OGT) and AMP-activated protein kinase (AMPK), cooperatively connecting metabolic homeostasis to regulation of numerous intracellular processes essential for life. Similar to phosphorylation, catalyzed by kinases such as AMPK, O-GlcNAcylation is a highly dynamic Ser/Thr-specific
Jana Held et al.
Antimicrobial agents and chemotherapy, 58(11), 6378-6384 (2014-08-13)
Myxobacteria are Gram-negative soil-dwelling bacteria belonging to the phylum Proteobacteria. They are a rich source of promising compounds for clinical application, such as epothilones for cancer therapy and several new antibiotics. In the course of a bioactivity screening program of
Emma L Humphrey et al.
Neuromuscular disorders : NMD, 25(1), 32-42 (2014-11-13)
We generated a novel monoclonal antibody, DAG-6F4, against alpha-dystroglycan which immunolabels the sarcolemma in human muscle biopsies. Its seven amino-acid epitope, PNQRPEL, was identified using phage-displayed peptides and is located immediately after the highly-glycosylated mucin domain of alpha-dystroglycan. On Western
Lucy G Weaver et al.
Carbohydrate research, 371, 68-76 (2013-03-26)
Poly-N-acetylglucosamine (PNAG) saccharides are an important constituent of bacterial biofilms, such as those produced by Staphylococcus aureus. We have developed a simple two-step iterative method for the synthesis of β-(1→6)-glucosamine oligosaccharides that are structurally similar to PNAG. We illustrate the
Sun-Jung Kim et al.
Biomaterials, 34(27), 6504-6514 (2013-06-04)
Diagnosis and therapy of early stage liver fibrosis is very important for the treatment of fatal liver diseases. Here, we report on the targeted imaging and therapy of activated hepatic stellate cells (HSCs) and fibrotic liver tissue using N-acetylglucosamine (GlcNAc)-
Anne Grethe Hamre et al.
FEBS letters, 588(24), 4620-4624 (2014-12-03)
Glycoside hydrolases depolymerize polysaccharides. They can subtract single carbohydrate chains from polymer crystals and cleave glycosidic bonds without dissociating from the substrate after each catalytic event. This processivity is thought to conserve energy during polysaccharide degradation. Herein, we compare the
Syoichiro Kono et al.
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association, 24(3), 537-547 (2014-12-24)
Telmisartan is a highly lipid-soluble angiotensin receptor blocker (ARB), which improves insulin sensitivity and reduces triglyceride levels and, thus, is called metabo-sartan. We examined the effects of telmisartan on neurovascular unit (N-acetylglucosamine oligomer [NAGO], collagen IV, and glial fibrillary acidic
N-acetylglucosamine: a new osmotic solute in peritoneal dialysis solutions.
A Breborowicz et al.
Peritoneal dialysis international : journal of the International Society for Peritoneal Dialysis, 17 Suppl 2, S80-S83 (1997-01-01)
Kirsi Rilla et al.
The Journal of biological chemistry, 288(8), 5973-5983 (2013-01-11)
Mammals have three homologous genes encoding proteins with hyaluronan synthase activity (Has1-3), all producing an identical polymer from UDP-N-acetylglucosamine and UDP-glucuronic acid. To compare the properties of these isoenzymes, COS-1 cells, with minor endogenous hyaluronan synthesis, were transfected with human
A Cassone et al.
Microbiologica, 8(1), 85-99 (1985-01-01)
N-acetylglucosamine is a morphogenic effector in the human pathogenic yeast Candida albicans. Depending on temperature, N-acetylglucosamine induces yeast-mycelial conversion or chlamydospore formation. N-acetylglucosamine is also a carbon source for growth in the yeast form. Germ-tube formation, i.e. the intermediary of
Jun Miao et al.
Experimental parasitology, 135(3), 541-545 (2013-09-24)
In vitro culture of Plasmodium falciparum gametocytes is essential for studying sexual development of the parasite. Here we describe a simple method for producing synchronous gametocyte culture without contamination of asexual stages. This method employs heparin's activity in blocking merozoite
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