摘要:
Processes are disclosed using the depolymerization of a nucleic acid hybrid to qualitatively and quantitatively analyze for the presence of predetermined nucleic acid target sequences using a multiplex assay format. Applications of those processes include the detection of single nucleotide polymorphisms, identification of single base changes, speciation, genotyping, medical marker diagnostics, and the like.
摘要:
A modified form of beetle luciferase, which has been engineered for improved genetic reporting, is disclosed. The modified form contains one or more new features. Chief among these is removal of the peroxisomal translocation sequence to yield a cytoplasmic form of the enzyme. Other changes include removal of potentially interfering restriction sites and genetic regulatory sites from the gene, improvement of the codon usage for mammalian cells. The modified luciferase reporter enzyme is also devoid of potential N-glycosylation targets to minimize post-translational modification and remains in the cytoplasm of host cells to optimize substrate availability.
摘要:
Luciferase enzymes with greatly increased thermostability, e.g., at least half lives of 2 hours at 50° C., cDNAs encoding the novel luciferases, and hosts transformed to express the luciferases, are disclosed. Methods of producing the luciferases include recursive mutagenesis. The luciferases are used in conventional methods, some employing kits.
摘要:
The invention provides a mutant hydrolase protein with enhanced kinetics and functional expression, as well as polynucleotides encoding the mutant proteins and methods of using the polynucleotides and mutant proteins.
摘要:
The invention provides a mutant hydrolase protein with enhanced kinetics and functional expression, as well as polynucleotides encoding the mutant proteins and methods of using the polynucleotides and mutant proteins.
摘要:
Luciferase enzymes with greatly increased thermostability, e.g., at least half lives of 2 hours at 50° C., cDNAs encoding the novel luciferases, and hosts transformed to express the luciferases, are disclosed. Methods of producing the luciferases include recursive mutagenesis. The luciferases are used in conventional methods, some employing kits.
摘要:
The invention provides polynucleotides encoding and polypeptides corresponding to split hydrolase fusion proteins, wherein the hydrolase sequence may include at least one substitution, and use of the split hydrolase fusion proteins.
摘要:
The invention provides surfactant compounds of formulas I-IX, which can be used in methods for aiding the solubilization, digestion, preparation, analysis, and/or characterization of biological material, for example, proteins or cell membranes. The compounds can also aid in the recovery of peptides generated during protein digestion, particularly for in-gel digestion protocol. Additionally, the compounds can improve enzymatic protein deglycosylation without interfering with downstream sample preparation steps and mass spectrometric analysis. The compounds can be specifically useful as digestion aids that can be decomposed by an acid, by heat, or a combination thereof. Decomposition of the surfactants allows for facile separation from isolated samples, and/or allows for analysis of the sample without interfering with the sensitivity of various analytical techniques.
摘要:
The presently disclosed invention is drawn to an automatic luminometer apparatus capable of measuring two distinct luminescent reactions from within a single, non-compartmentalized sample container. The present apparatus may be dimensioned, configured, and programmed to automatically perform dual-reporter luminescent assays using multi-well sample plates, such as 96-well microtiter plates.