Showing 1-24 of 24 results for "B6755"
Frank Jansen et al.
Biotechnology and applied biochemistry, 61(6), 646-654 (2014-03-01)
The plant polymer lignin is the greatest source of aromatic chemical structures on earth. Hence, the chemically diverse lignin monomers are valuable raw materials for fine chemicals, materials synthesis, and food and flavor industries. However, extensive use of this natural...
Yuchen Guo et al.
Molecules (Basel, Switzerland), 24(8) (2019-04-28)
Pterygoplichthys disjunctivus, locally named the armoured catfish, is a by-catch of tilapia fishing that accounts for up to 80% of total captured fish in the Adolfo Lopez Mateos dam, in Michoacán, México, affecting the economy of its surrounding communities. This...
Joseph S Brunzelle et al.
Archives of biochemistry and biophysics, 474(1), 157-166 (2008-04-01)
The three-dimensional structure of the catalytically efficient beta-xylosidase from Selenomonas ruminantium in complex with competitive inhibitor 1,3-bis[tris(hydroxymethyl)methylamino]propane (BTP) was determined by using X-ray crystallography (1.3A resolution). Most H bonds between inhibitor and protein occur within subsite -1, including one between...
Emmanuel H Demont et al.
Journal of medicinal chemistry, 58(14), 5649-5673 (2015-07-15)
Overexpression of ATAD2 (ATPase family, AAA domain containing 2) has been linked to disease severity and progression in a wide range of cancers, and is implicated in the regulation of several drivers of cancer growth. Little is known of the...
Y Satoh et al.
The Journal of biological chemistry, 256(20), 10272-10275 (1981-10-25)
In the presence of a salt in an excess amount, the oxidation of native MbO2 was enhanced considerably above the normal autoxidation in buffr alone with the formation of the corresponding MetMb . anion complex. This anion-induced oxidation of MbO2...
Natalie Jayne Werling et al.
Human gene therapy methods, 26(3), 82-92 (2015-05-09)
Adeno-associated viral (AAV) vectors show great promise for gene therapy because of their excellent safety profile; however, development of robust dose-determining assays for AAV has presented a significant challenge. With the ultimate goal of future harmonization and standardization of AAV...
Sarita V Mello et al.
Biomacromolecules, 4(4), 968-973 (2003-07-15)
In this paper, we describe the preparation and characterization of Langmuir and Langmuir-Blodgett (LB) monolayers of the enzyme organophosphorus acid anhydrolase (OPAA). Langmuir films of OPAA were characterized on different subphases, such as phosphate, ammonium carbonate, and bis-tris-propane buffers. Monolayers...
P Gómez-Tagle et al.
Inorganic chemistry, 40(15), 3786-3796 (2001-07-10)
Potentiometric titrations of the mixtures of lanthanide(III) perchlorates and bis-Tris propane (BTP) reveal formation of dinuclear hydroxo complexes M2(BTP)2(OH)n(6-n), where M = La(III), Pr(III), Nd(III), Eu(III), Gd(III), and Dy(III) and n = 2, 4, 5, or 6, in the pH...
Sami J O Varjo et al.
Journal of chromatography. A, 1081(1), 92-98 (2005-07-15)
Greater stability of liposome coatings and improved resolution of model steroids in capillary electrochromatography (CEC) were sought by adding small diamines (ethylenediamine, diaminopropane, bis-tris-propane, or N-(2-hydroxyethyl)piperazine-N'-(2-ethanesulfonic acid, HEPES)) to the liposome solution before coating of fused silica capillaries. The phospholipid...
A Akhlaghi et al.
Poultry science, 92(4), 874-881 (2013-03-09)
A hypothesis was tested that the in ovo injection of biological buffers may reinforce the buffering capacity of albumen, thereby withstanding the increase in albumen pH during storage and improving hatchability and chick quality in long-term stored eggs. Hatching eggs...
Estefania Boix et al.
Dalton transactions (Cambridge, England : 2003), 43(44), 16902-16910 (2014-10-11)
We demonstrate the use of silk based proteins to control the particle/crystallite size during GeO2 formation, using a bio-mimetic approach at circumneutral pH and ambient temperature. Multicrystalline GeO2 was prepared from germanium tetraethoxide (TEOG) in the presence of different silk-based...
S V Albers et al.
Journal of bacteriology, 181(14), 4285-4291 (1999-07-10)
The archaeon Sulfolobus solfataricus grows optimally at 80 degrees C and pH 2.5 to 3.5 on carbon sources such as yeast extracts, tryptone, and various sugars. Cells rapidly accumulate glucose. This transport activity involves a membrane-bound glucose-binding protein that interacts...
Justin P Ludeman et al.
Organic & biomolecular chemistry, 13(7), 2162-2169 (2014-12-24)
Tyrosine sulfation is a widespread post-translational modification that mediates the interactions of secreted and membrane-associated proteins in such varied biological processes as peptide hormone action, adhesion, blood coagulation, complement activation and regulation of leukocyte trafficking. Due to the heterogeneous nature...
Francesca Spyrakis et al.
ChemMedChem, 9(7), 1501-1511 (2014-03-13)
Cystalysin from Treponema denticola is a pyridoxal 5'-phosphate dependent lyase that catalyzes the formation of pyruvate, ammonia, and sulfide from cysteine. It is a virulence factor in adult periodontitis because its reaction contributes to hemolysis, which sustains the pathogen. Therefore...
Stephanie A Shumar et al.
PloS one, 10(6), e0130013-e0130013 (2015-06-09)
Pantothenate kinase-associated neurodegeneration, PKAN, is an inherited disorder characterized by progressive impairment in motor coordination and caused by mutations in PANK2, a human gene that encodes one of four pantothenate kinase (PanK) isoforms. PanK initiates the synthesis of coenzyme A...
Roland D Kersten et al.
ACS chemical biology, 10(11), 2501-2511 (2015-09-18)
Terpenes are ubiquitous natural chemicals with diverse biological functions spanning all three domains of life. In specialized metabolism, the active sites of terpene synthases (TPSs) evolve in shape and reactivity to direct the biosynthesis of a myriad of chemotypes for...
Ágnes Maróti et al.
Biochemistry, 54(12), 2095-2103 (2015-03-12)
The second electron transfer from primary ubiquinone Q(A) to secondary ubiquinone Q(B) in the reaction center (RC) from Rhodobacter sphaeroides involves a protonated Q(B)(-) intermediate state whose low pK(a) makes direct observation impossible. Here, we replaced the native ubiquinone with...
S J Smith et al.
The Journal of biological chemistry, 259(15), 9365-9368 (1984-08-10)
The kinetics of binding and hydrolysis of ATP by bovine cardiac myosin subfragment 1 has been reinvestigated. More than 90% of the total fluorescence amplitude associated with ATP hydrolysis occurs with an apparent second-order rate constant of 8.1 X 10(5)...
Michael C Breadmore
Journal of chromatography. A, 1217(24), 3900-3906 (2010-05-11)
An EOF counter-balanced ITP boundary has been used to stack anions from high conductivity samples during continuous electrokinetic injection of the sample. In a polystyrenesulfonate/poly(diallyldimethylammonium chloride) polyelectrolyte coated capillary, the time at which the ITP boundary exited the capillary could...
R Tóth-Boconádi et al.
Biophysical journal, 78(6), 3170-3177 (2000-05-29)
Buffers change the electric signals of light-excited bacteriorhodopsin molecules in purple membrane if their concentration and the pH of the low-salt solution are properly selected. "Positive" buffers produce a positive component, and "negative" buffers a negative component in addition to...
R Coronado et al.
The Journal of general physiology, 79(4), 529-547 (1982-04-01)
A collection of organic cations has been used to probe the gross structural features of the ionic diffusion pathway in a K+-selective channel from sarcoplasmic reticulum (SR). Channels were incorporated into planar phospholipid bilayer membranes, and single-channel currents were measured...
E Csuhai et al.
Biochemistry, 34(38), 12411-12419 (1995-09-26)
A secreted dibasic cleaving peptidase capable of converting dynorphins into Leu-enkephalin-Arg6 was purified from the medium of EL-4 mouse thymoma cells. The enzyme is a novel metalloendopeptidase with a neutral pH optimum (6.9) and a molecular weight of approximately 130...
Milya Davlieva et al.
Nucleic acids research, 43(9), 4758-4773 (2015-04-22)
LiaR is a 'master regulator' of the cell envelope stress response in enterococci and many other Gram-positive organisms. Mutations to liaR can lead to antibiotic resistance to a variety of antibiotics including the cyclic lipopeptide daptomycin. LiaR is phosphorylated in...
M H Hopkins et al.
Journal of enzyme inhibition, 6(3), 195-199 (1992-01-01)
It is hypothesized that buffers capable of forming a Schiff base with the PLP of gamma-aminobutyric acid aminotransferase (GABA-AT) may lead to denaturation and inactivation of the enzyme. On the basis of this hypothesis three new methods for the selective...

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