摘要:
The present invention provides immunogenic compositions and methods that may be used to administer safer (i.e., attenuated) alphavirus vectors (such as alphavirus vectors comprising a VEE virion shell) that retain improved immunogenicity as compared with other attenuated alphaviruses (e.g., the VEE 3014 mutant, described below). In particular embodiments of the invention, the alphavirus vector comprises VEE structural proteins comprising an attenuating mutation in the E1 glycoprotein. In other particular embodiments, the attenuating mutation is in the fusogenic region of the E1 glycoprotein. The present invention enables administration of lower dosages of a safer (i.e., attenuated) virus and, thus, can further reduce manufacturing costs. The present inventors have found that immunogenicity of alphavirus vectors may be influenced by a number of factors including species, site and route of administration.
摘要:
The present invention provides methods and compositions comprising a population of alphavirus replicon particles comprising two or more isolated nucleic acids selected from 1) an isolated nucleic acid encoding an env gene product or an immunogenic fragment thereof of a human immunodeficiency virus, 2) an isolated nucleic acid encoding a g&agr;g gene product or an immunogenic fragment thereof of a human immunodeficiency virus, wherein the g&agr;g gene product or immunogenic fragment thereof is modified to inhibit formation of virus-like particles containing the g&agr;g gene product or the immunogenic fragment thereof and their release from a cell, and 3) an isolated nucleic acid encoding a pol gene product or an immunogenic fragment thereof of a human immunodeficiency virus, wherein the pol gene product or immunogenic fragment thereof is modified to inhibit protease, integrase, RNase H and/or reverse transcriptase activity, and wherein the nucleic acids are each contained within a separate alphavirus replicon particle.
摘要:
The present invention provides methods and compositions comprising a population of alphavirus replicon particles comprising two or more isolated nucleic acids selected from 1) an isolated nucleic acid encoding an env gene product or an immunogenic fragment thereof of a human immunodeficiency virus, 2) an isolated nucleic acid encoding a gag gene product or an immunogenic fragment thereof of a human immunodeficiency virus, wherein the gag gene product or immunogenic fragment thereof is modified to inhibit formation of virus-like particles containing the gag gene product or the immunogenic fragment thereof and their release from a cell, and 3) an isolated nucleic acid encoding a pol gene product or an immunogenic fragment thereof of a human immunodeficiency virus, wherein the pol gene product or immunogenic fragment thereof is modified to inhibit protease, integrase, RNase H and/or reverse transcriptase activity, and wherein the nucleic acids are each contained within a separate alphavirus replicon particle.
摘要:
The disclosed subject matter relates to an architecture that can scale content resolution in order to mitigate errors in a provisioned service of a communication network, such as a wireless service or a femtocell service that integrates with DSL or other broadband carriers. The architecture can identify fault conditions relating to e.g., bandwidth oversubscription or symbolization integrity. Based upon such identification, the architecture can alter encoding format codecs of certain types of content in order to reduce their resolution/quality, thereby mitigating bandwidth oversubscription fault conditions or freeing up space (without necessarily increasing bandwidth) to insert additional FEC code.
摘要:
A cooking appliance having a heating source and a cooking surface disposed above the heating source. A temperature sensing probe is located between the heating source and the cooking surface for indicating to a user the temperature at or near the cooking surface.
摘要:
A method of making an injection moulded container for housing information storage media, e.g. a DVD, the container having a base portion (10) and a lid portion (11) moveable about a spine portion (12) between open and closed configurations and holding means (15) for holding the media within the container, the method involving the use of an injection moulding tool comprising two carrier units (40, 41) each adapted to receive a plurality of inserts therein which define a cavity for forming the container: a first set of the inserts (50-59) for forming a first set of features of the container being formed of a first material, e.g. steel, and a second set of. inserts (42-45) for forming a second set of features of the container being formed of a second material, e.g a copper alloy, the first set of inserts (50-59) being machined to the required shape for fitting within the carrier units (40, 41) and for forming the first set of features and the second set of inserts (42-45) being machined so as to fit within the carrier units (40, 41) but one or more of the second set of inserts (42-45) being formed with excess material on surfaces thereof defining said second set of features pending a decision as to the precise shape of said second set of features, whereby once a decision has been made the tool can be completed by machining said excess material to the required shape and assembling the inserts in the mould.
摘要:
This invention relates to isolated or recombinant N-CBZ-deprotecting enzyme polypeptides that catalyze the removal of CBZ from CBZ-protected amino acids and alcohols, and variants, modifications, and fragments thereof. Also related are isolated nucleic acids encoding N-CBZ-deprotecting enzyme polypeptides, and variants, modifications, and fragments thereof, as well as vectors and host cells comprising these nucleic acids. The invention also relates to methods of obtaining isolated nucleic acids, polypeptides, and antibodies, and methods of using polypeptides in various reactions for industrial or pharmaceutical applications.
摘要:
Systems and methods for enhanced electronic asset protection are described. One aspect of one described embodiment includes receiving an indication to activate asset protection, the client device having a local data store; and activating asset protection in response to the indication, wherein asset protection comprises disabling the local data store and disabling the client device. In another embodiment, a computer-readable medium (such as, for example random access memory or a computer disk) includes code for carrying out such a method.
摘要:
Methods and systems are provided for migrating a data integration facility, such as an ETL job, from a source data integration platform to a target data integration platform. For example, systems and methods are provided for migrating a data integration job from a source data integration platform having a source native format to a target data integration platform having a target native format; wherein the target native format is different than the source native format. The systems and methods may involve analyzing a source language construct of the source data integration platform to determine a logical syntax; constructing a target language construct of the target data integration platform adapted to perform the same logical operation on the target data integration platform as the source language construct performs on the source data integration platform; and substituting the target language construct for the source language construct in the source code for the data integration job.