摘要:
The invention provides methods and processes for the identification of polymorphisms at one or more designated sites, without interference from non-designated sites located within proximity of such designated sites. Probes are provided capable of interrogation of such designated sites in order to determine the composition of each such designated site. By the methods of this invention, one or more mutations within the CFTR gene and the HLA gene complex can be identified.
摘要:
The present invention provides a method for the generation of novel libraries of encoded magnetic particles from sub-libraries of by the generation of novel sub-libraries of magnetic nanoparticles and encoded particles. The sub-libraries are functionalized on demand are useful in the formation of arrays. The present invention is especially useful for performing multiplexed (parallel) assays for qualitative and/or quantitative analysis of binding interactions of a number of analyte molecules in a sample.
摘要:
Disclosed are methods for establishing the compatibility between two bloodtypes on the basis of cross-matching (under a designated rule of stringency) the minor blood group genotypes of recipient and prospective donors. To determine compatibility, the blood group genotypes are mapped to corresponding phenotypes according to the expression states associated with a set of underlying haplotypes, and compatibility is established by establishing the compatibility of bloodtypes constructed as a combination of constituent phenotypes. The bit strings are matched, preferably using an algorithm expression. Where ambiguity in mapping genotypes to haplotypes exists, it can be reduced based on frequency of occurrence of the haplotypes in the sample population, or resolved by gametic phasing. Such reduction or resolution of ambiguity is particularly desirable where mismatches in the antigens expressed by the constituent haplotypes have greater clinical significance.
摘要:
Disclosed are methods and algorithms (and their implementation) supporting the automated analysis and interactive review and refinement ("redaction") of the analysis within an integrated software environment, for automated allele assignments. The implementation, preferably with a software system and a program referred to as the Automated Allele Assignment ("AAA") program, provides a multiplicity of functionalities including: data management by way of an integrated interface to a portal a database to permit visualizing, importing, exporting and creating customizable summery reports; system configuration ("Set-up") including user authorization, training set analysis and probe masking; Pattern Analysis including string matching and probe flipping; and Interactive Redaction combining real-time database computations and "cut-andpaste" editing, generating "warning" statements and supporting annotation. It also includes a thresholding function, a method of setting thresholds, a method of refining thresholds by matching an experimental binary string ("reaction pattern") setting for that probe, probe masking of signals produced by probes which do not contribute significantly to discriminating among alleles.
摘要:
Disclosed are gel-coated beads (including HydrogelTM -coated beads), which are capable of adsorbing, or absorbing, proteins and other biomolecules onto or into the gel coating. The gelcoated beads with absorbed or adsorbed biomolecules are suitable for use in an assays, purification or other purposes. The beads have a core made from any of a number of materials, including latex, coated with the gel shell. The biomolecules can be retained within the gel, following adsorption, by covalent attachment, or, by selection of conditions of ambient pH and/or ionic strength such that they are retained without further reaction. Therefore, adsorbed proteins would retain the ability to bind to their respective ligands.
摘要:
A polyelectrolyte having multiple exposed functional groups, each such group being capable of covalently bonding to a molecule, is immobilized on a surface for the purpose of bonding to a biomolecule. The biomolecule can be, for example, a nucleic acid, e.g., an amine functionalized oligonucleotide. The polyelectrolyte can include, e.g., BSA (Bovine Serum Albumin) which is bound to a functionalized surface using a covalent immobilization strategy, e.g., reaction with the surface of a tosyl-activated microparticle. Following such reaction, exposed reactive functional groups on the protein, such as amine, carboxyl, thiol, hydroxyl groups can further be utilized to covalently couple the oligonucleotide of interest using suitable chemistry.
摘要:
The present invention provides methods for quality control of biochip manufacture, preferably where the substrate is a semiconductor and the biochip carries bio-functionalized microbeads.
摘要:
A method of detecting the formation of an analyte-biomolecule complex comprising the following steps: providing a planar array of biomolecules comprising a plurality of beads having biomolecules attached thereto, wherein the plurality of beads comprises different bead types, said bead types being distinguishable by said biomolecules and each bead type being associated with a unique chemical or physical characteristic that identifies the biomolecules attached to said bead type, wherein beads are arranged in a planar array and biomolecules attached to said beads are exposed to a contiguous liquid phase, said biomolecules capable of forming complexes with corresponding analyte compounds, when said analyte compounds are present in said liquid phase; contacting the biomolecules with a sample that may contain one or more analyte compounds such that, if the analytes are present in the sample, said analytes bind to corresponding biomolecules to form analyte-biomolecule complexes; detecting the formation of the analyte-biomolecule complexes; and identifying the biomolecules of the analyte-biomolecule complexes by correlating the location of the analyte-biomolecule complexes with particular bead types, based on the unique chemical or physical characteristics of the beads.
摘要:
A method and apparatus for the physico-chemical encoding of a collection of beaded resin ("beads") to determine the chemical identity of bead-anchored compounds by in-situ interrogation of individual beads. The present invention provides method and apparatus to implement color-coding strategies in applications and including the ultrahigh-throughput screening of bead-based combinatorial compounds libraries as well as multiplexed diagnostic and environmental testing and other biochemical assays.