Abstract:
The invention provides therapeutic compositions useful in the treatment of bacterial superantigen mediated conditions, such as Toxic Shock Syndrome. The compositions comprise genetically engineered bifunctional polypeptides containing a specific T-cell receptor binding domain and a specific MHC class II receptor binding domain, each targeting non-overlapping epitopes on a superantigen molecule against which they are designed. The anti-superantigen “receptor mimetics” or “chimeras” are rationally designed to recreate the modality of superantigen binding directly to both the TCR and the MHC-II receptor, and are capable of acting as decoys for superantigen binding, effectively out-competing the host T-cell and MHC-II receptors, the natural host receptors.
Abstract:
Chimeric anti-microbial proteins, compositions, and methods for the therapeutic and prophylactic treatment of plant diseases caused by the bacterial pathogen Xylella fastidiosa are provided. The anti-microbial proteins of the invention generally comprise a surface recognition domain polypeptide, capable of binding to a bacterial membrane component, fused to a bacterial lysis domain polypeptide, capable of affecting lysis or rupture of the bacterial membrane, typically via a fused polypeptide linker. In particular, methods and compositions for the treatment or prevention of Pierce's disease of grapevines are provided. Methods for the generation of transgenic Vitus vinefera plants expressing xylem-secreted anti-microbial chimeras are also provided.
Abstract:
Preparation of 13C/15N-labeled DNA oligomers using the polymerase chain reaction (PCR). A PCR based method for uniform (13C/15N)-labeling of DNA duplexes is described. Multiple copies of a blunt-ended duplex are cloned into a plasmid, each copy containing the sequence of interest and restriction Hinc II sequences at both the 5′ and 3′ ends. PCR using bi-directional primers and uniformly 13C/15N-labeled dNTP precursors generates labeled DNA duplexes containing multiple copies of the sequence of interest. Twenty-four cycles of PCR, followed by restriction and purification, gave the uniformly 13C/15N-labeled duplex sequence with a 30% yield. Such labeled duplexes find significant applications in multinuclear magnetic resonance spectroscopy.
Abstract:
This invention relates to an electrodeposition process which comprises electrodepositing onto a conducting substrate a coating composition comprising a self-crosslinking polymeric resin which has an average of at least two pendent hydroxy functional groups and an average of at least two pendent ester groups of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl, substituted alkyl or aryl groups; n is from about 1 to about 5; X is nitrogen, sulfur or phosphorus; and when X is nitrogen or phosphorus, R.sup.3 is hydrogen, lower alkyl, or an aryl group; R.sup.4 is lower alkyl or an aryl group; and when X is sulfur, R.sup.4 is nothing and R.sup.3 is either hydrogen, lower alkyl or aryl.
Abstract:
In a silica organosol consisting of silica dispersed in a water-miscible organic solvent, a process for treating the silica with a trialkoxysilane to make the silica more organophilic while minimizing the self condensation of the trialkoxy silane, which process comprises:(a) admixing water and a catalytic amount of acid to the silica organosol; and(b) gradually adding a trialkoxysilane to the admixture under reactive conditions; and(c) removing substantially all of the water;wherein the trialkoxy silane is present at a level up to about 30% by weight based upon the weight of the silica and the water is added at an amount up to about 30% by weight based upon the weight of the water-miscible organic solvent.
Abstract:
The invention provides therapeutic compositions useful in the treatment of bacterial superantigen mediated conditions, such as Toxic Shock Syndrome. The compositions comprise genetically engineered bifunctional polypeptides containing a specific T-cell receptor binding domain and a specific MHC class 11 receptor binding domain, each targeting non-overlapping epitopes on a superantigen molecule against which they are designed. The anti-superantigen “receptor mimetics” or “chimeras” are rationally designed to recreate the modality of superantigen binding directly to both the TCR and the MHC-II receptor, and are capable of acting as decoys for superantigen binding, effectively out-competing the host T-cell and MHC-II receptors, the natural host receptors.
Abstract:
This invention relates to coating compositions which comprise a polymer having at least two hydroxy functional groups and a crosslinking agent having an average of at least two pendent ester groups of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl, substituted alkyl or aryl groups; n is from about 1 to about 5; X is nitrogen, sulfur or phosphorus; and when X is either nitrogen or phosphorus, R.sup.3 is hydrogen, lower alkyl, or an aryl group; R.sup.4 is lower alkyl or an aryl group; and when X is sulfur, R.sup.4 is nothing and R.sup.3 is either hydrogen, lower alkyl or aryl.
Abstract:
Unsaturated hydrophobic resins modified with labile hydrophillic groups exhibit reversible solubility in water. Beta-dialkyl amino carboxylate derivatives of novolak resins are useful to make baking enamels and resists.
Abstract:
An acylated, hindered hexahydropyrimidine of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different independently of each other and are alkyl having 1 to 6 carbon atoms, when unsubstituted, or alkyl or aryl substituted;R.sub.5 and R.sub.6 may be the same or different and are hydrogen, or alkyl;R.sub.7 is selected from the group consisting of: alkyl having 1 to 20 carbon atoms, substituted alkyl where the alkyl without substitution has 1 to 20 carbon atoms and where substituents may be up to five lower alkyl groups, arylalkyl, cycloalkyl having 3 to 12 carbon atoms, aryl aryl substituted with 1 to 3 substituents seleted from the group consisting of: lower alkyl, lower alkoxy, and hydroxyl; ##STR2## wherein R.sub.9 is unsubstituted or substituted with alkyl,R.sub.10 is hydroxyl, lower alkoxy, phenoxy and the group ##STR3## and R.sub.8 is hydrogen, alkyl, substituted alkyl, arylalkyl, hydroxyl, oxyl and ##STR4## wherein R.sub.11 is unsubstituted or substituted alkyl.
Abstract:
A method for sensing, in an electronic device, the presence and inferring therefrom an intent of an object includes sensing a baseline ambient spatial average temperature for a sensed field of view, monitoring the sensed field of view for a variation in the ambient spatial average temperature of the field of view relative to the baseline, characterizing any detected variation, determining whether the detected variation is a recognized variation, and causing the electronic device to take at least one predetermined action responsive to a recognized variation.