摘要:
Tags and linkers specifically designed for a wide variety of nucleic acid reactions are disclosed, which are suitable for a wide variety of nucleic acid reactions wherein separation of nucleic acid molecules based upon size is required.
摘要:
Methods and compounds, including compositions therefrom, are provided for determining the sequence of nucleic acid molecules. The methods permit the determination of multiple nucleic acid sequences simultaneously. The compounds are used as tags to generate tagged nucleic acid fragments which are complementary to a selected target nucleic acid molecule. Each tag is correlative with a particular nucleotide and, in a preferred embodiment, is detectable by mass spectrometry. Following separation of the tagged fragments by sequential length, the tags are cleaved from the tagged fragments. In a preferred embodiment, the tags are detected by mass spectrometry and the sequence of the nucleic acid molecule is determined therefrom. The individual steps of the methods can be used in automated format, e.g., by the incorporation into systems.
摘要:
In embodiments of the present invention, methods are provided for removing double-stranded oligonucleotide (e.g., DNA) molecules containing one or more sequence errors, generated during nucleic acid synthesis, from a population of correct oligonucleotide duplexes. In one embodiment, the oligonucleotides are generated enzymatically. Heteroduplex (containing mismatched bases) oligonucleotides may be created by denaturing and reannealing the population of duplexes. The reannealed oligonucleotide duplexes are contacted with a mismatch recognition protein that interacts with (e.g., binds and/or cleaves) the duplexes containing a base pair mismatch. The oligonucleotide heteroduplexes that have interacted with such a protein are separated, simultaneously with contacting or sequentially in a separate step, from homoduplexes. These methods are also used in another embodiment to remove heteroduplex oligonucleotides (e.g., DNA) that are formed directly from chemical nucleic acid synthesis. In other embodiments of the present invention, kits and compositions useful for the methods are provided.
摘要:
Disclosed is a significantly improved synthetic method of producing a set of mutagenized progeny polynucleotides which contain at least one substituted codon encoding for each of the 20 naturally encoded amino acids or any selected subset thereof. This in turn, similarly provides a method for producing from a parental template polypeptide, a set of mutagenized progeny polypeptides in which all 20 naturally encoded amino acids is represented at each original amino acid position or any selected subset thereof. The methods described herein enable the synthesis of defined, complex mixtures of oligonucleotides, in instances where the incorporation of degenerate bases is impractical. These oligonucleotide mixtures are useful for a variety of applications such as recombination methods, site-saturation mutagenesis, or the like.
摘要:
A system and method of dynamically managing a power supply allocation for each one of the server blades in a blade server includes a blade server system having a blade chassis, multiple server blades coupled to the blade chassis, a power supply system coupled to the blade chassis, a chassis management module coupled to the blade chassis, wherein the blade chassis includes electrical and data communication interconnections between the server blades, the redundant power supply system and the chassis management module. The chassis management module includes computer readable media having program instructions for dynamically managing a power supply allocation for each one of the server blades.
摘要:
Systems and methods are described that manage routing information in an IP network using extensible indexing and use the indexing to control the network. The indexing and associated controls apply to any router within the routing domain.
摘要:
The invention comprises a method and apparatus for managing route selection in a network. Specifically, the method comprises receiving a set of routes from each of a plurality of routers, filtering each of the sets of routes, and selecting at least one route from each of the filtered sets of routes according to routing information associated with each of the respective routers.
摘要:
Embodiments of the present invention are directed to automated-polymer-synthesis systems that include discrete reagent-solution-addition, wait-time, and reagent-solution-draining sub-systems which together significantly increase throughput and decrease sub-system idle time. The automated-polymer-synthesis systems that represent embodiments of the present invention additionally include switches at points in which carriers can be received from multiple input paths or output to multiple different output paths. The automated-polymer-synthesis systems that represent embodiments of the present invention generally include an input spur and output spur in addition to a main loop, allowing carriers containing only completed polymers to be removed and new carriers input, so that carriers traverse the automated-polymer-synthesis systems independently from one another.
摘要:
Systems and methods are described that manage routing information in an IP network using extensible indexing and use the indexing to control the network. The indexing and associated controls apply to any router within the routing domain.
摘要:
A method and apparatus for providing traffic management through dynamic and granular definitions of route groups. Within a communications network, a traffic routing control unit (e.g., an intelligent route service control point (IRSCP)) creates route group assignments for each route within a customers network in accordance with a customer's routing plan, determines protocol control values to be set within each edge router of the network to fulfill the group assignments, and uses border gateway protocol (BGP) to set the protocol control values in the edge routers to facilitate fulfilling the route group assignments. Using the traffic routing control unit and programming the protocol control values of the edge routers, enables the network to be flexibly defined and the traffic routing within the network to have very granular control.