Abstract:
A mutated severe acute respiratory syndrome-associated coronavirus 3C-like protease and use thereof for cleaving a protein that includes a cleavage site recognizable by the mutated protease to yield a polypeptide fragment of interest.
Abstract:
Gene regulation network is reconstructed using time series microarray data under the method of the Bayesian network. Particular power-law function is used to calculate the joint probabilities among genes across time points. This invention discloses the use of the downhill simplex algorithm to find global maxima of interrelational likelihood. Arcs with higher frequencies are selected to establish the gene regulation network. Prior knowledge may be included into candidate gene networks to accelerate search for best networks.
Abstract:
The disclosure provides fusion proteins comprising a carbohydrate recognition domain of an innate immunity receptor and a heterologous polypeptide. The fusion proteins of the disclosure may be used, for example, to fingerprint polysaccharide compositions and to purify polysaccharide compositions. Polysaccharide compositions include those isolated from Ganoderma lucidum (Reishi). The methods and reagents of the disclosure may also be used to identify innate immunity receptors and cell types that bind to polysaccharide compositions (including polysaccharide compositions associated with pathogens), whereupon modulators of the identified receptors can then be obtained. The fusion proteins also may be used to inhibit the interaction between a polysaccharide composition and an innate immunity receptor on a cell surface. The methods and reagents of the disclosure are used in one example to determine that the DLVR1 innate immunity receptor on macrophages interacts with Dengue virus (DV), and that DLVR1 is responsible for DV-mediated secretion of proinflammatory cytokines from macrophages. The disclosure also provides DVLR1 antibodies that prevent the secretion of proinflammatory cytokines by DV-infected macrophages.
Abstract:
Images of blood vessels of a body are obtained by injecting a refraction enhancement contrast agent into the blood vessels to increase a difference in refractive indices of the blood vessels and surrounding material. The blood vessels are irradiated with a penetrating radiation, and an image of the blood vessels is generated based on detected radiation. The image has visible edge enhancement features indicating boundaries of the blood vessels.
Abstract:
A method of screening compounds capable of activating ζ and/or ε globin gene promoter activity in an erythroid cell is disclosed. The methods comprises contacting in a medium a compound to be screened with RREB1; wherein the medium comprises a polynucleotide comprising the nucleotide sequence of 5′-M-C-M-C-A-M-M-H-M-M-M-3′, wherein M is the nucleotide adenine or cytosine, and H is the nucleotide adenine, cytosine or thymine; the RREB1 bindable to the polynucleotide; determining binding of the compound to the RREB1; and determining change in binding of the RREB1 to the polynucleotide; wherein detection of binding of the compound to the RREB1 and change in binding of the RREB1 to the polynucleotide is indicative that the compound is capable of activating ζ and/or ε globin gene promoter activity. Also disclosed is a method of activating ζ and/or ε globin gene promoter activity in an erythroid cell.
Abstract:
A method for producing a monosaccharide-rich syrup from starch-containing produce. The method includes treating a starch-containing produce slurry with a first starch hydrolyzing enzyme that hydrolyzes starch to oligosaccharide and a second starch hydrolyzing enzyme that hydrolyzes starch or oligosaccharide to glucose. The starch-containing produce can be further treated with an enzyme that converts glucose to other monosaccharides, or treated with a microorganism that converts glucose to a fermentation product. Also within the scope of this invention is a method for producing a syrup rich in a disaccharide, such as trehalose.
Abstract:
The present invention is disclosed that a device capable of normal incident detection of infrared light to efficiently convert infrared light into electric signals. The device includes a substrate, a first contact layer formed on the substrate, an active layer formed on the first contact layer, a barrier layer formed on the active layer and a second contact layer formed on the barrier layer, wherein the active layer includes multiple quantum dot layers.
Abstract:
Some embodiments of the invention are directed to a pharmaceutical composition comprising an anti-inflammatory or an anti-hyperalgesic effective amount of isolated or purified Ipomomoea batatas trypsin inhibitor and a pharmaceutically acceptable carrier. The Ipomomoea batatas trypsin inhibitor may be derived from a sweet potato leaf or storage root. Also contemplated are methods of treating inflammation or hyperalgesia comprising selecting a subject suffering from inflammation or hyperalgesia, such as a subject with edema; and administering an anti-inflammatory or anti-hyperalgesia effective amount of amount Ipomomoea batatas trypsin inhibitor or a composition comprising an amount of Ipomomoea batatas trypsin inhibitor to the subject; wherein inflammation or hyperalgesia in the subject is reduced upon administration.
Abstract:
A method of making a quantum dot memory cell, the quantum dot memory cell including an array of quantum dots disposed between a first electrode and a second electrode, includes obtaining values for a tunneling current through the quantum dot memory cell as a function of a voltage applied to the quantum dot memory cell and selecting parameters of the quantum dot memory cell such that the tunneling current through the quantum dot memory cell exhibits a bistable current for at least some values of the voltage applied to the quantum dot memory cell. The values for the tunneling current are determined on the basis of a density of states of the array of quantum dots.